Piaggio Zip Malossi 70cc Cylinder Kit Install & Tuning - Scooter Street

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The main jets 88 in the end, skip the video to 52:00 for a run down. After 2 weeks we followed up with a systems check, we finished the carby with an 85 main JET, Needle is an A22 Middle notch.

[@assieblazer7802]

best tutorial i have seen in years great work!!!!

[@scooterstreetau]

Thanks for your appreciation👏😊

[@mleon592]

My fav part is they aren’t using torque specs, I never been a fan of them 😂 always though who cares if it’s for my scooter

[@MrWhiteamin]

You guys make a great instructional video, it was just a pleasure to watch! ☺ I'm 66 and still fiddling about with scooters and other two strokes, mainly veterans. But my son has a Zip that got scored, so he's putting on the same Malossi sport cylinder. Already had the same exhaust, Leo Vince. So he was over the hill when I sent him a link to this video.. A very professional video production, and you blokes are entertaining. Thanks !

[@scooterstreetau]

Thanks MrWhiteamin, appreciate the kind words mate👏 The Zip is an amazing little scooter, heaps of fun for street riding.

[@troybrown6218]

62 and still love building fast 2 stroke scooters

[@brettweinmann9154]

Two true professional's, great video footage and extremely well explained. Well done guys

[@scooterstreetau]

Thanks Brett🙌 awesome comment!

[@dasrusse1030]

I've been pretty experienced tuning small 2 strokes with manual gearboxes. And I got myself my first ever scooter a couple months ago and it's been really hard for me to tune my rollers, clutch bla bla. This video is definetly very informative about how this stuff works. I am confident that I again can take upon the challange and get this thing running like it should.

[@scooterstreetau]

Go for it! Test and learn, can't go wrong. Be warned, once you start it is hard to stop tuning.

[@jordymeulenberg2586]

i have been struggling with my vespa sprint for a while i normally only work on classic scooters but now thanks to you guys i found a couple of my bikes problems and got some really good tips. thank you so much!

[@scooterstreetau]

Really good to hear this. We struggled for many years trying to pioneer solutions to the many problems these little scooties present.

[@SalttooCS]

Great video, really shows how to get the work done!

[@scooterstreetau]

Thanks Salttoo.

[@johanbasten7721]

Reminds me of the old days. One day i walked up to the nearest motorshop i always got my stuff. Walked up to that guy and asked him that i was looking for a Polini EVO 70CC for Piaggio. Back then the kit to have (15+ years ago or so). I saw his eyes grow and the next thing he said to me "What the Heck do you need that Kit for??" i imediatly realised i was not going to get that Kit at that time. His reaction on my question was priceless, something i have never forgotten. :) At some point i ended up having the desired kit and it was great fun. Just dont get caught when you run it in the streets.

[@scooterstreetau]

Good story Johan, 15 years ago only Scooter tuners would have known of these parts😜. The first time someone asked me if I had any Polini stuff I pointed towards the fruitshop down the road.😂

[@aqua5325]

Well done guys, super happy with all of my purchases and support

[@scooterstreetau]

Thanks for your support! All the best.

[@charduff]

Guys, massively appreciate the video. It was so comprehensive and I came out with a whole lot more knowledge. Thank you so much and I wish you all the best.

[@scooterstreetau]

Amazing to receive such a complimentary comment, thank you Charles. All the very best for you too👍🦘🦘

[@LarryPennington-no1qx]

​@@scooterstreetauuu7

[@gibnv]

NO WAY! I never been so proud to be italian like today hahah. Well done guys, it's so satisfing that Zip is loved till Down Under. I'm now subscribed :)

[@scooterstreetau]

What a beautiful comment! Thank you Giuseppe Bonaviri. We love Italian Scooters in Australia🛵

[@gibnv]

@@scooterstreetau this is one more reason for me to come there 😁

[@Gt-tp5zc]

This is the best most clea,r concise instructional video i have seen on my bike. Its told me everything i needed to know in less than an hour. Thanks guys.

[@scooterstreetau]

So cool, thanks Gt 6. Glad it helped🙌

[@paulbudford]

Great feature length episode guys. Looking forward to seeing more similar content. Who doesn't love changing clutch springs? 😂

[@scooterstreetau]

Paul, thanks for the support :) More Vids in the pipeline.

[@minombreesprince3228]

Does this kit change your auto transmission to manual?

[@Dreadnought9411]

Excellent ! ...well done ! 👍

[@scooterstreetau]

Thank you👌

[@Pp-sf6ws]

Thats the most cleanest zip 2t i have probely ever seen in my life . All the other ones got damage or are customized. That exhaust is pretty good though. Would not have expected that.

[@scooterstreetau]

Yes it was in new condition and all original. Very rare indeed.

[@StanGlasius]

you havent been to the Netherlands yet haha. Pure machines here

[@Pp-sf6ws]

@@StanGlasius well hahah i live in the netherlands😂 and yess we do have some but not like this one. We do have very tuned ones indeed

[@StanGlasius]

@@Pp-sf6ws ja dat dus hahaha gekke 180 zippies vliegen voorbij

[@Pp-sf6ws]

@@StanGlasius exact😂 vind het ziek. Maar ook wel jammer.. mis die full 70cc zippies ook wel

[@ljmini732]

Thankyou guys for a great video, step by step was great and seeing the work being done is great. many thanks again.

[@scooterstreetau]

Thank you for supporting our Channel, Glad you enjoyed it😁

[@davej9929]

Excellent, knowledgeable, concise video.

[@scooterstreetau]

Thank you🙌

[@mylesyeoman7799]

The inlet plate in the carburettors mouth (brass plate) is not a restrictor, it’s actually serving its purpose delivering air flow into the right areas of the carb through the air holes. Often people believe it’s restricting the flow of air, but after performance parts get the jetting right with this little plate still in you will be onto a winner👍🏻 try with and without you’ll notice the sharper response and reliability from keeping the plate as is

[@scooterstreetau]

Thank you, really appreciate your experience... keeping it in does give better fuel consumption👍

[@markinas2004]

Love these videos guys, please do more projects like this!

[@scooterstreetau]

Thanks for your support Markas, we try to keep the videos coming.

[@Satown210]

Great pace and nice detail thanks

[@scooterstreetau]

Thank you👍

[@multilecful]

Jeez boys, I had my fist in my mouth whilst you were torquing that head down. Great video.

[@scooterstreetau]

All for the love of scooters😉

[@uncleputes]

I've got my Zip 50cc cylinder up to 75km/h on the flat (modded Carby, pipe, clutch, variator and I'm rather light) and suspension isn't Ideal lol, very light forks have almost no road holding through bends, currently working on an SP front end swap...It's fair to say this lil thing scares me more than my other bikes simply because it feels like it's gonna crash every second corner 😂

[@scooterstreetau]

Nice work. Haha yes the steering is lost when riding the Zip. Set the seat on the lowest position and hang on..

[@emirhan030]

Pipe? Exhaust right? Not familair with how they name the parts in english.

[@scooterstreetau]

@@emirhan030 yes, the same meaning👍

[@neman8986]

does the piaggio zip have the same engine as the aprilia sr50 2019?

[@scooterstreetau]

You probably noticed apart from the water cooling system on the SR50R, the base of the 2 engines are the same. You will notice between the Piaggio/Aprilia 2T models they look the same but each model has a different transmission length to accommodate the rear wheel, this includes each model running a different belt size to connect variator to the rear pulley.

[@scooterstreetau]

I believe 2019 SR50R has the new Euro 4 emissions system also, which uses a different carburettor, stator, coil and CDI/ECU. It also has the larger temp sensor on the head, and the solenoid air valve for the electronic control of the carb.

[@jaredpursey3791]

@@scooterstreetauwith the length difference would it be worth sourcing the longer transmission to help with wheel lift?

[@scooterstreetau]

Yes if that is the goal.@@jaredpursey3791

[@homelessdrifter9508]

the "emission controller" is actually there to provide a certain amount of oxygen in the catalysator that is in every single stock pipe in european bikes, and theres a check valve so that the exhaust gasses dont go into the variator case or where ever the pipe takes the air from

[@nastynatesscooters9896]

Great video!!! Like the finished bike!!

[@scooterstreetau]

Worked out very nice for the owner, thanks for the love😉

[@mosebootyclap160]

Hey i have a piaggio zip 2006 mod everything stock what would you recommend doing with it?

[@scooterstreetau]

In this video, if you follow what we have done you will end up with a very fun, fast little street machine. The build in the video was based on s tight budget so we did not go overboard with super expensive parts. Just a strong foundation which delivers good power and overall value for the ride.

[@mosebootyclap160]

@@scooterstreetau i have a problem where i splited the engine case and changed the piston and crankshaft but now the case wont fit? The case wont close fully i think the case is touching the crank bearings I have a doppler endurance crankshaft.

[@scooterstreetau]

@@mosebootyclap160 Make sure the Crank shaft is pressed all the way into the cases.

[@usanian83]

Wow had a severe case of nostalgia kicking in watching this, i’m from belgium and almost 38 but was doing the exact same thing since i got my first mobilette called the honda camino at the age of 16 , ended up going to school learning all of it and not just placing parts etc, now after 2 strokes i suffered at 34 wich paralized my left side so its kind of hard to watch without feeling the pain of damn the days where i was ok but it feels great!, you got yourselves a huge fan!, in my days it was either the dick ring or just dick for the exhaust🤣 how are the laws on tuning scooters in australia? We had cops stopping you randomly where they were standing near a random road with a portable speedometer to check 😫 they confiscated it to give you permition like a month or god knows how long to pick it back but with all the illegal parts removed for you by their own pissed off mechanic if you catch the drift lemme go check your ig out peace!

[@scooterstreetau]

Gday mate and welcome, Great comment thank you! See you're never alone😁😂.In Aus we do not have these rules, the country only adopted emissions rules 12 months ago.🦘 Wow and the Cops remove the parts? Hard core.. Over here no such thing, only speed and Hooning laws. All the best🛵🛵

[@levijensen7681]

Great work lads!

[@scooterstreetau]

Thanks Levi, glad you enjoyed.

[@LucaFiltroMan]

Just to be fair, I have enjoyed thoroughly the video and brought fond memories back :) Just to point out when you talk about "this isn't ideal to go super fast" perhaps you ought to know that there is a quite active racing scene where these little buggers go up to 160 Km/H

[@scooterstreetau]

Thank you, and yes we are aware of the Zip race series. Are the race Zips the SP water cooled version? This one is air cooled base model version.

[@LucaFiltroMan]

@@scooterstreetau Absolutely correct, the SP is the water cooled one, but to the best of my knowledge it should be possible to convert any version to liquid cooling: the only hiccup would be with the clearances in the leg shield trim, as there's a storage compartment that would interfere with the radiator's positioning. For the sake of honesty though, I'm not going to vouch about the accuracy of the info, it's something I recall from when the SPs where just hitting the market in Italy some 10+ years ago

[@scooterstreetau]

@@LucaFiltroMan We have done this conversion. We took an air cooled Zip and fitted the Radiator with electric water pump, cooling hoses and the water cooled racing cylinder along with many other tuning parts. We also changed the front panel and fitted a genuine SP front cover so the incoming air could meet the radiator. The performance was as you described, Ridiculous power!! This was an expensive project... We lalso did the Superman theme custom paint job and it did fly🤣🤣.

[@Airbrushourworld]

what a great vlog, love it

[@scooterstreetau]

Thanks so much for the comment, all the best👍

[@cippanello]

my zip mk1 have top tpr and the squish at 0,7 goes great.Nice video

[@scooterstreetau]

0.7, very good👌 and thank you.

[@scooterstreetau]

Please support us and SUB..'

[@generalr6398]

you guys are freaking legends! awesome vid!

[@scooterstreetau]

Thank you for the great comment and for the view👋🌟👌

[@generalr6398]

@@scooterstreetau no problem at all. I just got a zip and have purchased a few products from you. I hope I got the right ones. Just going to do the rollers, jets, clutch springs. Got a Leo Vince off a friend too. Was going to hold off on the 70cc kit for now to save some money. Hopefully it all goes well.

[@scooterstreetau]

@@generalr6398 Ok thank you, use the vid above as a guide..

[@taylorsadventures6585]

Thankyou so much lads helped me alot !!!!

[@scooterstreetau]

Awesome, great to hear..

[@freeair7292]

Great job!

[@scooterstreetau]

Thank you Air Man🦘👍🦘

[@f1xxxHTIDXXX]

this definitely needed a malossi variator and gear up kit for better top end but wikid video reminded me of my youth i had a 70cc gilera runner that did 75mph + with these mods + the gear up kit and malossi variator.... but yeah great video 😉

[@scooterstreetau]

Haha the good Ole days.. yes fit more , get more agreed. The Runner would have been mad with those speeds. Thank you for the Sub.

[@Barbarossa010]

Great vid Guys💪💪 i have a zip SP 98 model with 180 2stroke Piaggio engine swap great job im from Netherlands ❤️much love💙

[@scooterstreetau]

Thank you! That Zip of your would be very satisfying..wow.

[@Barbarossa010]

@@scooterstreetau yes in deed my friend 👍 kzbin.info/www/bejne/in26pmloha9gm6M

[@kenjuicekrajewski9577]

Great videoes and work ive been races kx 500s quadzillas and turbo street/street bikes for 30 yrs now and im loving these little 2 stroke rippers and builds i may sell two of my big bore bikes and get 5 more of these 2 strokes i just picked up a yamaha qt 50 and a yamaha riva lol

[@scooterstreetau]

Glad you like our videos, thank you for watching and your comment. The small 2 stroke are too much fun, it feels illegal😂

[@paulholmes1181]

putting this this kit on my gilera ice and watching the steps as I do it, you guys have done an amazing job very easy to keep up with, I'm putting on the malossi flip exhaust and a dellorto 19mm carb and multivar 2000 variator kit. do you mind of I imbed this video onto our forum? cheers from nz Terry

[@scooterstreetau]

Thank you so much! The extra parts youn are fitting will be on another level. Yes please go ahead and link the forum. We are trying to get more SUBS and views, much appreciated.

[@Pasteria8]

Thanks brother! Im almost there! I got my sip running lile a beauty with this video and i have never touched a tool before. I cimmented before and you answered. Im lamost there brother!! Messing around with weights i have 6.5g at the moment. Think i will try 6g and contemplaining to put the malossi fly clutch with bell on.

[@scooterstreetau]

Great stuff, very happy for you😆. Note: The lighter rollers will allow the engien to rev easier but go too light and you will loose pulling power through the mid range. Fitting a clutch or fitting tighter clutch springs will make a positive difference to the rpm build and the initial acceleration.

[@Pasteria8]

@@scooterstreetau im so happy for your existence and that you made this video 💯❤️ you helped a man on the other side of the world literally 🙏🙏🙏 Ill put in the clutch tomorrow and i will order some new clutch springs and some contrast spring? I thinks its called 👍 anyway big big big love 💯❤️ If you were in Sweden i would fuggin hug the shit out of you brother ❤️❤️ keep doing this kinds of video and i would love to see some more build from you guys 🤔 sorry for long comment but you really saved me, my man 💯💯💯🙏🙏🙏🙏😇😇😇

[@scooterstreetau]

😂😂That is awesome, the reason we make this channel and you are a perfect example🙌, We have great success with the polini clutch, it is adjustable and aloows fine tenson adjustment.@@Pasteria8

[@Pasteria8]

@@scooterstreetau i only need to build hangers for all of my pipes to try out now, stage 6 mk1 , laser x pro and a gianelli reverse. De build hangers take longer time then anything else 🤣 But yeah! If anybody reads this! Go for it! This video is a very very very good tutorial on how to do stuff! Only thing is that im lefthanded and assume the guy in the video is right handed bcuz of sometime when he said do from this side cuz easier angle, sometime is opposite if you are left and its possible from the other side, just a side note 😅🙏 Thank my brother from AU 💯❤️

[@Pasteria8]

I have the stage 6 pipe on. I have 70cc malossi sport i have malossi fly clutch and 6g rollers. What is the final steps now to get it adjusted right?

[@leandro23_]

Nice video guys thanks, i recently buy a zip 2t stock!

[@leandro23_]

Where is the serial VIN?

[@scooterstreetau]

In the glove box.

[@scooterstreetau]

Good choice! Great place to start, 😍 ZIP

[@BeauuSB]

Best tutorial on youtube

[@scooterstreetau]

Thanks Beau😲👍, glad you liked it.

[@ryanlowe920]

Doing a similar build this week! Unsure if to get a new cast iron kit or a mhr kit second hand but it has a brand new piston with it

[@scooterstreetau]

If the MHR is in very good condition, value hard to pass on that.. if a first build go for cast.

[@killuminatii1]

37:08 i have a 70cc AC Athena Racing kit for my zip and the squish is 0,6mm. Moreover, a very informative video!

[@scooterstreetau]

Wow, thats a very tight squish! The Malossi MHR Team racing cylinder reccommends no more than 0.7mm squish. Thanks, glad you liked it!

[@haytalejp1086]

70cc ac athena racine kit for my zip

[@domciau]

Very nice video

[@scooterstreetau]

Thanks Dom, appreciated🤙

[@EnergyXyz]

There are two types Dellorto PHVA 17,5 models. A modified "low emission" type named "OD" with a fat needle, smaller cut away and different needle jet (emulsion tube) The other one is the "normal" one named "TS. Thats the one to go with. Much more easy to tune in, especially in the middle range.

[@scooterstreetau]

Thanks EnergyXyx, this is great information🙌. There are more than 11 PHVA in 17.5mm range. Parts change between them such as the slides, needles, atomisers, jets and so on. Heaps of info on Dellorto Uk website for anyone needing.

[@EnergyXyz]

@@scooterstreetau yes there are so many models, but just stay away from the bad Euro4 - OD models. The good ones often comes with A20 needle and a 40 degree cutaway throttle slide.

[@scooterstreetau]

Thanks for sharing🙏@@EnergyXyz

[@henryhaxby9283]

Great video guys. Thanks from the UK, please let me know if you had to move the needle clip.

[@scooterstreetau]

Hey thanks henryhaxby, see the description for the tuning points. we start with needle clip in middle position and we leaft it in this position.

[@mikkei3532]

great video

[@scooterstreetau]

Thanks! Glad you enjoyed🙌

[@pubggamers505]

Good work👍 🇮🇶

[@scooterstreetau]

Much appreciation👌

[@YBR_1]

Please do more like this. Also could you do a wheelie build on a zip or another scooter

[@scooterstreetau]

Always trying. Time is our Kryptonite.

[@mudachuka12345]

Enjoyed watching the video Iam wondering how much of the performance increase was down to derestricting the carb would like to have seen this before fitting the exhaust.

[@scooterstreetau]

Thank you mate👍. If you derestrict the carb only there will be no noticeable gain, due to the balance being over weighted with air. In effect you are giving too little fuel. We want an increase but a balanced ratio of fuel and air. Thanks for the SUB🎅😎

[@nastynatesscooters9896]

The zips are very nice you don’t see them in the USA often I bet they would sell fast here

[@scooterstreetau]

They would have been a huge seller in USA.. Very popular in all markets.

[@2TLifesTV]

Nice video brother! cheers!!

[@scooterstreetau]

Thank you, you have great video too👍

[@2TLifesTV]

@@scooterstreetau Thank you so much brother! cheers!

[@2TLifesTV]

@@scooterstreetau Thank you so much! Godpseed

[@scooterstreetau]

@@2TLifesTV 👌

[@scooterstreetau]

@@2TLifesTV 🎅

[@bikeboys6000]

Best tutorial ive ever seen i think lol

[@scooterstreetau]

Ah thank you mate, support is appreciated🤘

[@Pasteria8]

This titorial made me have the balls to buy a 70cc malossi sport to my Piaggio zip 02 2t... Finished it yesterday and tried it on today. I listened to my friend regarding to the jet, he told me mid 90s but i habe a 96 now and i cant even lile gove it more then 1/4 of gas before it starys to like blurr and lost power . I will try a 88 jet tomorrow. And also order a weight kit. I already have a jet kit. I also have a malossi fly clutch with bell i have to put on. But thinking i had to run in the new malosssi cylinder first? Thanks for this video much appreciated ❤❤💯💯

[@scooterstreetau]

Well done! and a great achievement to have a go, I am sure it will be a success. With the basics, only ever change one part at a time, cylinder first then a quick start, then start the jetting. Start at your 96 and then move down to the 92-90-88 and when it becomes clean on throttle go back up 1 jet and ride it for a fuel tank and then retune. Yes you will notice the revs and movement may not be at their peak so leave the rollers and just add tighter clutch springs or the Mal clutch. and then again test ride and let it settle, adjust as necessary. Then repat with the next part and so on🚀

[@milfhunterinternational7458]

im a little bit late but great video! The only thing I guess you forgot to say is that you should place the opening of the c clips on the top or the bottom because from the movement of the piston it will get pressed together and eventually will fly out and damage your zylinder and piston love from Germany

[@scooterstreetau]

Better to be late than never, thanks watching🙌 and thanks for the tip! We discussed this in the piston replaement videos.

[@frankie5341]

So wanted to see it go after all the work, best vid ever thanks.

[@scooterstreetau]

Haha yes sorry. Thanks for the support ☺

[@matthewnorris203]

Honda Bond. On everything. Hi from the USA 😅

[@scooterstreetau]

Hey Bro🙌

[@clivesilk3501]

my 2006 zip doesn't have an emissions part fitted ... i like your upgrades !!

[@scooterstreetau]

Yes the early Zip was PURE. Thanks for watching🙌

[@charliejohnson2065]

Perfect video easy to understand explanation, I’m looking at modding up my tnt Roma 2t I believe it has a Yamaha 2 stroke, would these parts (mainly the exhaust and cvt parts) be easily compatible with it? Thanks!

[@scooterstreetau]

Glad it helped and appraciate the veiw and comments🙌 The Roma is Minarelli based (Yamaha) so look for these parts. There are many around.

[@mudachuka12345]

Really enjoyed the explanations and video. Wanted to ask is there a needle position that needs to be changed or just changing the main jet? Also Iv seen other engine building videos with cars they don’t use oil in piston or cylinder they use WD40 because it lubricates it until the heat burns it off to commence breaking in between rings and cylinder. Lastly I was in Thailand and saw someone rebuild a 125 2 stroke he disconnected the oil feed to the cylinder to break in the rings initially have you heard or seen this done?

[@scooterstreetau]

The main jets 88 in the end, skip the video to 52:00 for a run down. After 2 weeks we followed up with a systems check, we finished the carby with an 85 main JET, Needle is an A22 Middle notch.] For the WD40 question, 4 stroke system is different, the 2 stroke system has oil and fuel in combustion so it might be best to run with oil...

[@bernardwitczak]

That small intake pipe for air come true I would not takeout from air filter otherwise I difficult adjust airflow and the carburetor hasn't worked properly.

[@scooterstreetau]

It works very well for us👍 but you must adjust the carby tuning.

[@andru9102]

Really interesting video, watched the whole thing. One question (which I couldn’t find in other peoples questions), would it be the same process for the Vespa 2 stroke 50cc? Thanks and greetings from UK

[@scooterstreetau]

Hi, and thank you. Yes the Vespa 2 stroke and the Zip 2 stroke are the same engine..👍

[@rshproductions2178]

Hi there, Just wanted to ask a quick question: Does the 70cc Malossi Sport piston rings have any particular position where you placed them on the piston as I cannot see no markings at all on both of the rings. Thank you.

[@scooterstreetau]

Both rings are the same, so the position can be top or bottom. Read the instructions if unsure.

[@lukaskarpovicius5323]

Nice video! I though you could help me, i changed my piston 5 times this year, always when i open the cylinder up, i see metal shavings inside the cylinder, and the cylinder is scratched, what could be the problem? Aprilia sr50 mk2 lc with 70cc airsal kit

[@scooterstreetau]

What carby and jet are you running, is the oil pump working properly, so many questions??

[@Biggreydog]

Experts who explain fully .

[@scooterstreetau]

Much appreciated🙌

[@joelivesey5353]

Brilliant video. Am after a bit of help with my zip my set up is stage6 70sport kit Stage 6 variator with 5.25 gram rollers Leo vince black edition race pipe 19mm carb with a 95 size jet malossi gear up kit standard crank and standard clutch set up the needle setting is 2nd from bottom standard reeds with a bigger inlet manifold the thing is the engine is spluttering on set off but as the revs build up it seems fine and is very quick. Any help would be much appreciated Cheers

[@scooterstreetau]

Thank you Joe🙌 Let the engine warm up to operating temp before making a judgement on the tuning. Is it auto choke or manual choke?

[@Satown210]

Have a question regarding if possible to change my vespa et2 from AC to DC so I could turn the entire scooter lights into LED including odometer lights cannot seem to find a good tutorial video anywhere to even see if it could be done?

[@scooterstreetau]

You can buy the change over LED globes and they run from the same connections as the existing globe housing, very clever.

[@axiglow6777]

Well actually when u upgrade ur motor and motor parts u have more power so actually you should put less stiffer springs on the clutch cause the motor has more tork and doesn't need to stard reving verry high before clutching the wheel just so u guys can know

[@scooterstreetau]

Hey Alixglow, whatever works for you and what your riding style is, so go for it. Good to hear your comments. We would apply a stiffer clutch spring set to delay the engagement of the clutch. Some of the race brands have designed a HIT clutch which allows the rev to build and then the clutch will engage to boost the initial acceleration. If you have less tension on the clutch springs the clutch will be engaging at idle, have seen this many times before.

[@jenny-masterchef]

make a few runs then check sparkplug readings again.but it looks ok,porcelain parts should look almost clean.ofcourse listen to the engine.im using polini cp 17,5 carb mj 80 with naraku 70 ,stock exhaust which i need to upgrade.stock airbox with malossi foam filter.ofcourse the mj setting depends of the airbox size too.

[@scooterstreetau]

Nice! This scooter is still going well after 4 months.

[@Googlemarsplanet]

Great video guys , question please, my son has a gilera storm, had all the 70cc mods , plus gear up kit etc , also unrestricted coal, cdi, and lots more , the question is the main jet in his 17.5 carb same carb as you have shown in your video is only a 56 , and you have used a 88 , all the work on our bike was done at a scooter shop , have they forget to change the main jet ? Or do you think a 56 jet is ok on a 70cc. Hope you can help us , many thanks !

[@scooterstreetau]

In our experiences, if we did not make the change to the main jet the engine would sustain damage due to overheating, lean on the fuel mixture. It is always hard to comment on others work so ultimately best to check with the installer of the parts, they may have upgraded the jet or had a suitable reason not too.

[@jaydelaney6842]

Hi guys hows it going great video I’ve got a standard 2011 zip 50cc the same as the bike you have here I have bought and installed a Leo Vince exhaust (same as one in video) and the blue clutch springs that come with it also some 6.5 gram mallossi rollers I have also put a 62 jet in the carb the bike starts and ticks over but won’t go more than 10-15 mph could this be just down to carb tuning or is it something else ?🤷🏼‍♂️

[@scooterstreetau]

Hi Jay, Thank you👍 Always a good idea to have the scoot running well first. If there are any issues, correct them before proceeding. Is the Leo derestricted? Is the engine spluttering or does it slowly loose power? Move the needle to the middle notch, Try the 60 Main jet. Report back👍

[@randymarius1678]

The best video. You are the best! But tell me, at a 2001 Aprilia Sr 50 AC I manage to do it on the street combining with a 70 cc Malossi engine set, with an RMS trim ?? Thank you. hello from Romania.

[@randymarius1678]

crankshaft RMS

[@scooterstreetau]

Yes you can do it.. Thank you for supporting us👏

[@jimccc9467]

Hi guy’s, great video. I just picked up an 09 Aprilia SR50 Ditech. Lots of discussion about proper spark plug, what is your opinion? Scooter is unmodified-for now. Thank you.

[@scooterstreetau]

Thanks mate. We use the spark plug ZMR7AP or you can use a CPR8E. You should change them often.

[@ashleyperkins4360]

Really interesting video! I have a Piaggio Fly 50 4T 4V - gets up to about 60 kph. I want it to go faster - am I better buying a 125cc? I’m not mechanically minded at all. Any advice appreciated. Thank you 🙏

[@scooterstreetau]

Hi Ashley, Thank you. Yes you should buy the 125cc or higher. It is expensive to upgrade the 4 stroke engine and the end result is not as good as the 125cc.

[@felixsiglreithmaier2920]

Great video! Just one thing: I personally would never never use an impact wrench directly on the crankshaft

[@scooterstreetau]

Thanks Felix, Good advice. Preset your tools it saves time and pre loosen nuts for the flow of the video.

[@fredschuttenbeld4571]

Nice basic instructional video. I would definitely expect some higher speed for a 70cc vs. the 50cc modification you did. The lack of more speed is probably caused by some breathing issues due to a too small carb for a 70cc. I would install at least a 20 millimeters. The smaller carb explains probably the good (bodem end) torque due to a higher air velocity through the carb/intake manifold. But at the top end, it is suffocating (like the restrictor plate did for the 50cc). Also, a simple detail, when changing the reed valves. Cut the little bolts so they don't protruding into the reed valve cage. This brings me to the next point. Always check if aftermarket parts match to all the other parts and not blocking or obstructing any flow, like gaskets blocking transfers or if exhaust flange matches the exhaust port (you be surprised!). Always measure if everything is up to spec, like ring gap, piston - cylinder clearance, etc. Balancing and blue printing is more effective than bolting exotic parts to it. Last but not least! Oil that beautiful filter with (good) filter oil! Protect that investment (the 70cc cylinder). That coarser filter, untreated, will let more dust through. Filter oil on/in a filter doesn't block the filter flow but makes the fibers sticky, so it even traps the finest particles. Awesome video!! 👍

[@snwman51]

Hi guys. Love your work. What’s roughly the cost of the pipe and clutch/roller upgrade for a TGB 50? Cheers

[@scooterstreetau]

Thank you very much🙌. Approximates.. Pipe $300, Clutch $130, Rollers $30. Check out the TGB page on the Website. www.scooterstreet.com.au/product-category/others-50cc/tgb-50/

[@MrBerenguer67]

Thks four your excellent job I have a Piaggio Zip I like to fix a Malossi 70cc kit on I have a Sp3 Liovince exhaust de restrict can you please let me know whitch carburettor jet size is work better thank you very much

[@scooterstreetau]

It would be somewhere between 80 and 90. You need to get a range of jet sizes (jet kit), start at around a 90, test ride, reduce to the next size down, repeat until the bike runs cleanly. Taking a shot in the dark on a jet size is very commonly the cause of piston seizure.

[@charlieboy259]

Takes me back 20 years watching this! Do you guys have any original italjet dragsters in Australia? I'm still tempted to do my stock minerelli engine out of mine in full malossi parts now!

[@scooterstreetau]

Hi There, Yes we do have the Italjet Dragster in Aus, we have 4 customers with this machine. With the upgrade, Go for it bang it up and burn🏍🏍🏍

[@charlieboy259]

@@scooterstreetau great stuff! One of my all time favourite scooters! It's been off the road since 2007 as parenthood and mortgages have stopped play for that long but I think I will have to do it soon! I have only just finished restoration on a italjet formula too!

[@scooterstreetau]

@@charlieboy259 Great, yes very rare over here, 3 of the 4 we service are modified and really have plenty of power and such a unique style.

[@charlieboy259]

@@scooterstreetau cool stuff! keep up the great work guys!

[@scooterstreetau]

@@charlieboy259 Thanks CB.✌🦘🦘🦘

[@stanp374]

do the zip 50 2t 2017 have A RESTRICTING WASHER ON THE VARIATOR SHAFT?

[@scooterstreetau]

Yes, between the 2 driving faces. It looks like a simple wedding ring.

[@krazed0451]

If you drop a circlip in the crank, a magnet on a stick is your friend ;-)

[@scooterstreetau]

Good tip👍🦘

[@Leopold.]

Makes the new reeds a big difference when it comes to acceleration and top speed. Are they better than the original reeds with this setup?

[@scooterstreetau]

The Carbon reed petals give a snappier response to the throttle action which enhances the engines rpm over the initial twist. The reed petals are provided in the Malossi sport kit for Piaggio. Some performance reed valves are larger and allow more fuel mix to flow.

[@krazed0451]

Very nice! A bit of discussion around ring end gap wouldn't hurt ;-) Do you find you ever need to adjust pilot jet when installing a pipe and cylinder?

[@scooterstreetau]

Not needed to adjust at this level, the pilot and main give a crisp carburation when throttled.. Needle or needle position.

[@krazed0451]

@@scooterstreetau Perfect, thanks!

[@scooterstreetau]

@@krazed0451 🤙🤙

[@antonywragg2756]

Great video guys, im just about to tune a zip myself, did you guys remove the restriction from the exhaust on this setup?

[@scooterstreetau]

Tahnk you👍Yes.

[@luiszaragozalazo8825]

which cluthc spring set did you use, and which do you recomend?, i have the same zip, what are de dimension of the new rollers? (size and weight)

[@scooterstreetau]

We used the Blue springs for the clutch, this is the set provided with the Leo Vince exhaust. You can also use Malossi spring set, White or Yellow. Malossi Rollers 19 x 15.5 6.5 gram.

[@jeroennijveld7781]

I have some questions, what is the brand of those yellow clutch springs, because I can't vind them on the Internet, and what kind of compression spring did you put in de scooter.

[@scooterstreetau]

Hi, You can find all the parts here --- www.scooterstreet.com.au/product-category/piaggio/piaggio-zip-50/ We used the Leo Vince clutch springs. Malossi have the Yellow springs. Original Torque spring.

[@x-tmigos1466]

When are you going to start a vid series on the Gilera Runner 180??

[@scooterstreetau]

We don't have many of the Gilera Runner 180 in Australia😓

[@tansugunal]

I need to make similar applications to my NRG50 liquid cooling. But 50cc and Unrestriction is enough for me actually. These parts are fine for me or I need different ones?

[@scooterstreetau]

You need to make sure you order the correct parts for the NRG. Some exhaust manufacturers make exhausts that fit all Hiper2 engines (Zip, Typhoon, NRG ect..) and some have specific fitments per model. For instance, Leo Vince make a specific exhaust for the NRG, which is slightly different to the Zip. The cylinder kits are obviously also quite different due to air cooled vs liquid cooled. Most of the parts in the engine are the same.

[@kash0utte221]

I currently have a yasuni r exhaust, malossi front clutch, polini back clutch, malossi cdi, and my carb is tuned. I want to upgrade to a 70cc malossi sport block but i need to know if im gonna need a new racing crank to go with the malossi 70sport block

[@scooterstreetau]

It depends on what model scooter you have, but generally not unless you install a racing cylinder kit. If yours is a Piaggio engine like this, the factory crank is very strong.

[@nastynatesscooters9896]

Hey man! I saw on your Yamaha bws rebuild video you just put on here that you used the molossi multivar variator on it but you put thAt small black washer behind the variator. I didn’t know that. Does it have to be behind there. What’s it do?

[@scooterstreetau]

Hi Nate, So this question relates to the Zuma engine video, and also includes any Malossi Variator kits that come with a black metal spacing washer. The Malossi kit 51 7075 has 2 washers and for the Zuma fitment the 2mm washer MUST be fitted to set the correct spacing for the variator assembly on the crankshaft. In the above video which is using Piaggio engine you can see the spacing washer on the crankshaft at time position 9:35

[@stanp374]

thanks

[@scooterstreetau]

Your welcome mate.

[@racing563]

Great video!! Next time yamaha aerox with a minarelli horizontal engine?😁

[@scooterstreetau]

We'll try! Just depends on when we get a job in the shop to film us doing.

[@V.Andersen]

when i put on the exsast and the variator kit with a 72 in the carb it almost dosent go forward. what can the problem be

[@scooterstreetau]

Your issue is very common, you have not made all the required changes to the engine. Go back to the start, remove all the parts and fit only the Variator first and then test ride. If all is OK then move to the next step. When we fit an exhaust you should watch one of earlier videos to see what other parts MUST be changed to get satisfactory result. Also watch the clutch springs set fitting video. This video will help for the exhaust part of your project. kzbin.info/www/bejne/oXfVYaGtjctnapo&ab_channel=ScooterStreet

[@cryptocurrent3770]

Hey guys, great video, I am tuning my piaggio typhoon and am currently in Canada. Are there any particular websites or links you guys have for acquiring these parts? Cheers

[@scooterstreetau]

Thanks CC, Look for a local supplier, you will get support and spares this way. Or try any of the European suppliers. Germany or UK.

[@JDMz]

Readspeed scooters will have parts for typhoon. They're based in the UK (stourport on severn) my local.

[@andregam3z-norskgaming856]

does this apply to a gilera runner sp 50 LC? im not quite sure and cant find a definitve answer, but does lc stand for liquid cooled?

[@scooterstreetau]

Usually LC stands for liquid cooled yes. The only difference between the two from a tuning perspective is the liquid cooling.

[@bb_adrians4672]

Awesome video guys!!! Just asking, what was the top speed after ALL of the modifications?

[@scooterstreetau]

Thanks FTD, we rode tested it at 88KPH but it had more, the original plan was to increase the acceleration and mid range for street riding only and not a build for top speed..

[@scooterstreetau]

FTD please sub to us. this helps our channel👌

[@mal6201]

nice video! will you guys ever do a 172cc build?

[@scooterstreetau]

If we get the opportunity to for sure!

[@allylaw2845]

I want to install the leo Vince tt exhaust on my completely stock 2017 aprilia sr50r and Im just wondering if I copy the exact way you installed it same jet size and rollers etc would it run the same and if not do you know what parts I should use? I’m a new rider so any detailed info would help thanks

[@scooterstreetau]

HI Ally, Each scooter is different and will require it's own jet size and roller weight. There will be a formula that works best for each individual scooter. Would be best for you to follow this video kzbin.info/www/bejne/oXfVYaGtjctnapo and this watch these to help give you an overall idea. kzbin.info/www/bejne/noa9aZinfrd5ec0&ab_channel=ScooterStreet kzbin.info/www/bejne/kHKxiaybg6yDqc0&ab_channel=ScooterStreet kzbin.info/www/bejne/aIm1gmBro9Z-osk&ab_channel=ScooterStreet Hope this helps.

[@callum14p]

Hi there, back again we finally fitted the parts to the scooter. Malossi variator with 7.5Gram rollers and added yellow clutch springs as well as the yasuni exhaust. And a malossi air/sponge filter Fitted a new carb as well as the other one had been abused and the thread on the main jet had been stripped. Took it for a ride out yesterday and acceleration was weak and top speed to 60 kph. Also main jet size is around a 65 jet according to the box on the new carby. This wasn’t good enough so had to swap the main jet to a 78! And this seems to have helped ever so slightly. On this video you were getting 80kph with very similar parts. What do you think I’m doing wrong? Hope you could shed some light on how I can fix the slow issues. Appreciate your knowledge Also tipped for a coffee guys hope you received it

[@scooterstreetau]

Hi Callum, Thank you so much for the Coffee, so appreciative. What Yasuni? Z or R? Did you derestrict the exhaust? Move rollers to 5.5 gram. then move up or down in weight as required. 5.5 may be too light but you will know first ride. Let the carby warm up so it is not on choke. ride for 3 minutes then tune and judge. D you have a 70cc kit fitted?

[@callum14p]

@@scooterstreetau hey guys, it’s a Yasuni R that has been derestricted. Ok will try the rollers. Bike has always been running a few minutes before taking it out for a spin. It’s still a 50cc on the scooter for now. Thanks again

[@scooterstreetau]

@@callum14p Ok, the Yas R needs very light rollers with a 50cc kit, give it a go and let us know 👍👍

[@hermmie17]

Thank you very much for the time and effort that went into this video. Very well explained and through this i also found another video for what was causing issues for me, worn Minarelli torque driver. If you don't mind me asking, how exactly do you go about tuning for the best clutch spring / roller weights ? I have spent alot of time trying to figure it out but it just doesn't come together. I know that lighter rollers mean that the transmission holds a higher rpm while you accelerate, heavier rollers the opposite. You also mentioned marking the variator to check if the belt rises all the way up. Would you also use roller weights to adjust this or do the rollers just adjust how quickly it rises and don't affect its final height? Thanks for your help in advance and all the best

[@scooterstreetau]

We have several other videos that give an explanation of the variator tuning, check them out. VARIATOR: With everything set at factory as a good starting point, go back to your original rollers, if they are 7.5 grams we have a total of 6 rollers weighing 45 grams total. So we want to lighten the rollers by 1 gram each, let's try the 6.5 grams (total of 39 grams). Marking the variator face prior to closing the clutch cover (which we can check the belt travel after the testing). Now test ride and note the difference. Just repeat this step and reduce the amount of weight change, by this I mean try a .5 gram change or even a .25 gram change for each roller. Your looking for a higher RPM earlier and a continued PULL as the variator changes through the gears. CLUTCH: The clutch can be set using a higher tension clutch spring set. Many of the Manufacturers have a chart to guide you on the tension of the clutch springs with an RPM engagement chart. So just go for around 5000RPM. This will delay the initial movement as the clutch engages. Remember to revisit the roller weight so the RPM stays optimal and does not dive through the gear change. Patience is the key and also document the weight change and the resulted changes you experienced and the test rides. Hope this helps and thanks for supporting our Channel.👍

[@hermmie17]

@@scooterstreetau thank you very much for the detailed answer. Will look into this.

[@hermmie17]

@@scooterstreetau Just finished fiddling with it, thanks guys it runs very good now. Putting a rpm gauge on it for testing has helped massively too. Peak power seems to be around 7500 rpm, with 5.0g rollers and stiffer contra / clutch springs ( polini 3g clutch with green springs on almost full preload and polini evo contra 10% ) it takes off much better and runs at about 7300/7400 rpm in normal city speeds. One question though, i think that the torque driver starts shifting slightly before the clutch grabs. Should i try fitting an even stiffer contra spring to make it shift later? Thanks again, very much appreciated and all the best from Germany

[@scooterstreetau]

@@hermmie17 the Driver will only shift if the belt pulls with pressure. Are the springs set too heavy? Are the rollers too light? Play with these parts one at a time to note the road difference..

[@oliverfuchs4357]

With gearing 15/38, all the other mods except DR evo (2 foot gaskets no headgasket) and Sito exhaust you can do already around 105 GPS after some slight mods to Exhaustport and Reedcase. I think your setup is far from optimised.That exhaust also kinda screws the powerband the Mallossi sports likes.

[@scooterstreetau]

Nice to hear👍👍

[@dalefehring9537]

Did you have to adjust needle jet or leave it set as per factory and did you have to derestrict the cdi.

[@scooterstreetau]

See the Pinned comment > The main jets 88 in the end, skip the video to 52:00 for a run down. After 2 weeks we followed up with a systems check, we finished the carby with an 85 main JET, Needle is an A22 Middle notch. An A 21 needle makes a smooth throttle at the lower RPM😎