aprilia MX 125 (2005) Rebuild, Tuning & Sound - A Two Stroke Supermoto Story

[@franciscomiranda9561]

What a great project, my friend! 👌👍 I did not imagine that your motorcycle was so badly treated !! 😕 You bragged about my ideas/changes in my Kmx, but you also had some great ideas/tricks, my congratulations! 👏👏 What a beautiful machine! 👌 And I also don't understand how Expensive Exhaust Brands Come So Poorly Designed and With that Lack of Quality, as you know, the Big One for my Kmx had to adapted to Fit Well, and I just didn't test the Quality Better because of the Accident! 😔 A big hug! 😉👍

[@malamutebikes1340]

Cheers, my mate. Yes, the project was bigger as expected although I still have a couple of ideas in mind. But the next big thing would be to finish the KMX project. At least I'm learning some things from every project I'm doing. By the way I'm very excited to see how your KMX will end up. 😎

[@franciscomiranda9561]

@@malamutebikes1340 As you already know, My Project/ Restoration (more of a Restoration/Recovery) is nothing too much, as we speak, it is to Keep the Motorcycle Practically Original, more Practical, Economical and Reliable than it was Before! The Biggest Difficulties are Recovering the Material you can Use, Finding Parts, Improving What I Bought Used, etc....But Anyway Thank You, I Will Give You some Feedback! 😉👍 But your "Kmx Project" has a lot more to tell definitely, With a set of great quality (from what I have seen), so I am very curious to see how things are evolving and I am Waiting the next video! 😉👍 And the best of all is same as you say, you always gain a little more knowledge, My Kmx was a great "school" for me! 😊👌🤛

[@cuongtomba7653]

As far as i know, italian exhaust makers might seem industrial, but are still a little more than an artisan and his shop...

[@TronsVsJosey]

Hi Malamute Bike's! I have just recently purchased a complete scalvini exhaust system for my Aprilia Mx and have had the exact problem! I was refunded 75 euros, they told me that my bike was to old, thus the reason for the brackets to line up with the chassis. I have a 2003 model and yours is a 2005, with pictures you have included I have the exact same spaces. I think we should contact them again, together. Maybe not help us, but future buyer's. It is wrong on there part! Great video by the way.

[@malamutebikes1340]

That's interesting and actually what I expected. Because Scalvini told me in a bit more kind way 'I'm to stupid to mount that system' but apparently I'm not the only one with that issue. I actually think it's a aprilia RX/SX 125 system with minor changes (if they even have done some). I already told Scalvini even after my refund about my changes but without any feedback. Maybe it will work out if we find some others. You can contact me at Facebook (Malamute Bikes) or via email: [e-mail] By the way did you solve the problems with the fitting?

[@TronsVsJosey]

@@malamutebikes1340 With the images you gave it is definitely not for our Aprilia. Like you say, it most certainly fits the sx model. Would be interesting to see if it actually did fit. I have been waiting for over a month to install the exhaust because I did not want to install it properly and use it if Scalvini was going to send me a new one. I only got my refund this week. I have a friend who is going to cut and move the brackets on the exhaust and TIG weld them into the right position. I'll email you the pictures. As a friend of mine knows the Manager of Scalvini Europe, the only option they gave was a complete refund or to go to there factory with the bike and they would weld the brackets in the right position 🤣. Ill email you with pictures.

[@58lp79]

Excellent Job!, Got to love a Nice 2 Stroke Supermoto rebuilt with care and attention to detail!, There are many Dog's for sale ;). Thanks for posting.

[@malamutebikes1340]

Thank you very much.

[@Original_Nuttah]

Epic build

[@malamutebikes1340]

Thx

[@jacopoferrari3593]

Good job!!! W rotax 125!!!

[@colinschmid1613]

have one myself but for now on the 11kw cause im to young this summer it will be driven on full power with the gianelli exhaust combo gonna be smokin fast

[@alphabetlotteryltd8860]

Hi again! I hope that you have had a nice Christmas. My key snapped in two (not in the ignition barrel). I have been to some locksmiths here in the UK, but they cannot find my bike on their computer systems. So they cannot make me a new key! Do you think I have to buy a new ignition pack that will have two keys for around £90? Or can I buy a key from Aprilia and see if that will work?

[@malamutebikes1340]

Yes, it was very fine and you? I actually bought a blank key at ebay and my locksmith prepared it with the original. So that was no problem. A few are online from time to time. Otherwise you might have to choose from one of your options.

[@m4rtinve]

Great job bro! I have a aprilia mx50 and want to utgravde to a 125cc…

[@malamutebikes1340]

Thanks. 😎 Just in case you don't know, you'll need a new bike. You can't just upgrade the engine. 😅

[@m4rtinve]

@@malamutebikes1340 haha!.. thanks😎😂

[@gustaggunther8825]

Schaut echt gut aus, ist die aber offen oder gedrosselt

[@Nick33109]

I have an mx125 2005, with only 2k miles on it. I have some questions: every part is original, but it's capped at 8kw right now. If I'd buy arrow sport exhaust, would it bring much more power, and of course, sound like a real two-stroke? Also, did you try any mods, like a temperature sensor? If yes, I would need some advice on that, because I am scared of overheating the engine, I sometimes get paranoid about my engine because there is no temperature indicator. Will the stock carb go well with the sport arrow exhaust? What things to change would you recommend for my motorcycle? Love your videos, and thank you!!

[@malamutebikes1340]

Hello, thank you very much for you compliment. 8 kW? I actually just know the 3 versions 18kW, 11kW and 5kW. What country are you from? Does that version have a Rave? With Arrow exhaust you will gain some power. Because you will lose the catalytic converter and the exhaust refeed. With the 28 carburator it should be possible to make it run properly but of course you'll need a new setting. If you have further questions you can also contact me at Facebook (Malamute Bikes) or via email [e-mail]

[@Nick33109]

@@malamutebikes1340 Well I might be mistaken though, it is 8kw on the documents, but I tried racing with my friend who has a 125 4t 11kw, and the speed was the same. I'm from Lithuania Where's better for me to message you? because I'm kinda new in this business and need some help and advice.

[@malamutebikes1340]

@@Nick33109 The easiest way would be Facebook. 😎 I'm looking forward to help you. 😎👌

[@carlocostan604]

hi, i have a question in your opinion, who am 170 cm tall, touch us on this bike?

[@malamutebikes1340]

Hi, I'm just 174cm myself and really feel comfortable on the bike.

[@carlocostan604]

@@malamutebikes1340 thanks very much

[@Jerry-df6ir]

Why is the brake lever turned all the way around??

[@malamutebikes1340]

What do you mean by "turned around"?

[@Jerry-df6ir]

@@malamutebikes1340 it seems like the lever is going to be pushed by your thumb, maybe it's the angle of the camera though

[@malamutebikes1340]

@@Jerry-df6ir Yes, that's definitely not upside down. But you've an interesting eye for details. 😅

[@Jerry-df6ir]

@@malamutebikes1340 hahaha nice, thanks

[@davidegigante]

I liked the video, how the bike changed from 28 to 34 and after the scalvini?

[@malamutebikes1340]

Even in stock it's a pretty powerful 125cc. Just changing the carburator size doesn't change much (except your fuel consumption). You always have to make a setting which works together. For the Scalvini it's at least very powerful (more then a Gianelli or Arrow). But again you need the right setting.

[@niki-n9314]

@@malamutebikes1340 Excellent job bro , i have the same bike and its awesome , the previuos owner changed the carburertor from 28mm to 34mm dellorto(its just like yours) , and it had 70 main jet but wasnt running good , i change it to 122 now and its better but not as i hoped it would be, any advices on to how to tune the carb to make perfect mixture , apart from the main jet everything in the carburetor is stock. If you can help me i would really apreciate that.Thank you :)

[@malamutebikes1340]

@@niki-n9314 Hi, thank you very much. At first it is important to know what has been changed on the bike (exhaust, air filter, CDI...)? What does the spar plug say? Is the mixture poor or rich? I'm using a way bigger main jet (but also changed a lot) and another needle besides these two parts it's all stock as well.

[@niki-n9314]

@@malamutebikes1340 yes i watched the whole video and a i saw what is changed. I was thinking about modifing the air filter and changing the reed valve.I live in Macedonia and we dont really have parts for these bikes and also buying an exshaust from abroad will cost me a lot more with shipping , maybe i should do some more adjustments to my carburetor , needle or something else

[@malamutebikes1340]

@@niki-n9314 Oh, that's interesting, if you want parts I might can help you. But to setup your carburator it's important to know the setup of your bike in the current status. I probably have a total different setup and that's why I need a total different carburator setup. If you want you can send me some pictures via [e-mail] or facebook (Malamute Bikes).

[@joshchatwin8569]

Where can I get parts for the mx 125 and a 50 want to put a big bore kit on the 50

[@malamutebikes1340]

I bought a lot of parts from ebay and friends. Unfortunately I have no experience with the MX 125. But I hope you are not planning to put a 125cc engine into the 50 frame?! 😅

[@joshchatwin8569]

@@malamutebikes1340 no I have both bikes paid 750 for them both but both don’t run right

[@malamutebikes1340]

@@joshchatwin8569 Oh, that still sounds like a nice bargain. My congratulations on that. 😎

[@joshchatwin8569]

@@malamutebikes1340 yeah bro barging and half just want to restore them now xx

[@janschottler2041]

Zufrieden mit der ?? Und hat die irgendwelche Macken bin dabei mit vileicht auch eine zu holen als projekt??

[@janschottler2041]

Bin 1.95 groß ich kann doch damit noch fahren oder

[@malamutebikes1340]

Es ist ein tolles Motorrad. Nur leider nicht unbedingt die Beste für ein Aufbauprojekt, da die Ersatzteilversorgung doch wirklich sehr bescheiden ist. Wichtig sind zum Beispiel vollständige/intakte Plastikteile, eine intakte Gabelbrücke und vorallem eine vollständige Kickstartereinheit. Alles Teile die fast unmöglich zu bekommen sind.

[@malamutebikes1340]

@@janschottler2041 In dem Fall am besten mal Probesitzen.

[@c0braCode]

hi i have the mx 125 too, i need to change the filter, which one do you recommend? my mx have: 34 dell'orto. rapid gas complete repower kit with rave 2 full exhaust giannelli carbon reeds i have 16/45, but these are too long and in 6 gear the bike die :( is good for me a 15/45? thanks :D

[@malamutebikes1340]

I recommend the Twin Air universal mat which you can cut as you want. I recommend a the 15/45 gearing in my case it's still a bit short (14/45) and I will change it soon...

[@c0braCode]

@@malamutebikes1340 thank you soooo much 💕💕

[@ilaria1579]

@@malamutebikes1340 Is the twin air mat more powerful than original filter?

[@malamutebikes1340]

@@ilaria1579 The Twin Air matt is a very good product but as a stand alone tuning product you probably wouldn't recognise it compared to the original. But in a whole tuning process I always would integrate it. (besides the original filters are getting pretty rare).

[@ilaria1579]

@@malamutebikes1340 Ok cool thanks for the answer i have been thinking to buy bigger carburetor and rave 2 for my mx 125 is it worth it?

[@harrypjotr2381]

Beautiful Bike! I am currently also restoring one, a 2004 with only 2000 km on it and it has been sitting most of its life in a garage (due to having a broken engine haha). I am curious about the Reed Valve Block and the Inlet combo. Do you recall where you got that angled inlet from, and did you have to cut it to fit the valve block?

[@malamutebikes1340]

Congratulations to that bike 😎 I bought the inlet here: www.pjme.co.uk/cgi-bin/ss000002.pl?page=search&SS=Inlet+aprilia&PR=-1&TB=O&ACTION=&ACTION=Go%21 And yes you have unfortunately to cut it... 😐

[@harrypjotr2381]

@@malamutebikes1340 Thanks! Well, before I could cut anything I would need to get ahold of an intake manifold first. Those things are crazy expensive with the angled inlet 😅 Did you get your brake lines custom made, or is there some fitting set?

[@malamutebikes1340]

@@harrypjotr2381 Yes, they are. I'm already working on alternatives. For the brake lines, I just found one at ebay special made for the MX that's actually pretty common.

[@harrypjotr2381]

@@malamutebikes1340 Oh you're right, I didnt expect that there are ready made ones for the MX. What do you mean with alternatives? I was also thinking about making a custom intake manifold, 3D-printing should come in handy :)

[@malamutebikes1340]

@@harrypjotr2381 That's what I'm working on. For my KMX project I already built one 😎

[@T.T.G.]

We're did you get the rear shock from and other parts please

[@malamutebikes1340]

Most parts are from the internet like eBay... Unfortunately they are hard to get as aprilia don't manufacture anything anymore. But some solutions are already made in the fan communities. I also recommend checking out some Facebook groups...

[@T.T.G.]

@Malamute Bikes i just got my no springs and oring full lot but lost my black casing with spring and red adjustment cap can you tell me if i just fit power valve in what rpm will it open at roughly also my blade was sticking it had scrape marks on the top and bottom of the blade its a new blade so i filled it down at it ok to alot of both sides on this new blade and last blade can you tell me what would have caused this to happen to my cylinder its oem no copy thanks sorry about long life story

[@malamutebikes1340]

@@T.T.G. Hi, the valve opens about at 6000 - 8500 rpm. You can ride it with out the adjustment but it's possible to lose/wreck the rest of it and you will obviously not be capable to adjust it to your needs. The blade sometimes sticks because of dirt (sometimes caused by the wrong mixture - to much grease which leads to sticking dirt) in that case I'll recommend a proper cleaning. Otherwise check the slide and the cylinder hole maybe there is something like scratches which cause the sticking. Because the system is so simple there are not much more possibilities.

[@alphabetlotteryltd8860]

Do you know if a VHSB Dellorto carburettor from an RS125 will fit the MX/ETX 125?

[@malamutebikes1340]

Depending which Dellorto you are talking about and which inlet you are using.

[@alphabetlotteryltd8860]

@@malamutebikes1340 Yes, its a VHSB 34mm Dellorto Carb with an inlet that normally fits to a RS125

[@alphabetlotteryltd8860]

@@malamutebikes1340 I know that I would need to buy a inlet that you showed me so that the carb does not protrude onto the suspension/swing arm.

[@malamutebikes1340]

@@alphabetlotteryltd8860 The carburator itself will fit. The inlet will not, because the one from the Enduros has an angle...

[@alphabetlotteryltd8860]

hi again, thanks for your help. Do you know if a 2006 chain guard for an MX125 will fit my 2000 ETX 125?

[@teomx]

Yo wassup, i got your same model, thing is that my plastics are damaged and dunno where i can replace them, but where did you find the brake lever? thanks alot! Also, do you have already got the rave 2 valve? It is a massive upgrade, believe me ;)

[@malamutebikes1340]

Hello, to replace the plastics it's not easy because they are sold out but sometimes you can find some good used ones. For that rebuild I refurbished them, which took me ages. The probrake I found at ebay but I think you should get it anywhere. I'm using the Pneumatic Rave 2 on some of my other aprilias. My ETX for example didn't have a Rave in stock mode (in Germany) that's why I had to go that way. I like both systems.

[@teomx]

@@malamutebikes1340 wait what did you use for refurbish them?

[@malamutebikes1340]

@@teomx I removed the scratches with water grinding paper/sponges and closed it all again with silicon spray. Depending on the damage they have it will take you ages but as reward you will get some very fine plastics again.

[@pascalkraut6773]

Hello, what V-Force 3 is this, from which modell of motard? And was ist Plug and play?

[@malamutebikes1340]

Hi, it's the V-Force set for the Rotax 122 (aprilia RS, MX, SX...). All you need is to cut rubber 'wings' of your inlet. You'll see if you have it in your hands.

[@alessiocicero2571]

as you find yourself with barefoot and vforce 3 (I would like to know the type of dispensing)

[@malamutebikes1340]

Sorry, but I don't get you? 😅

[@alessiocicero2571]

@@malamutebikes1340 ah lol, I'm using the translator and I'm wrong about the sentences. I asked you what the performance with Scalvini and vforce 3 is like

[@malamutebikes1340]

@@alessiocicero2571 Ah, okay. It was seriously confusing. 😅 As you can see it's a pretty tough 125cc bike with that modification. But V-Force membran don't gain you any horse powers but help with the throttle response. But right know I'm not sure if I could give a full recommendation for it. Because I heard a lot about reliability problems. I'll check the engine soon and publish a new video about it. The Scalvini in combination with the carburator are at least a real power package. I'll put it on the Dyno soon so stay tuned. 😉

[@janiszarins9359]

Where did you buy new plastics for the bike?

[@malamutebikes1340]

Unfortunately you can't get any new plastics for the MX anymore anywhere (believe me, I searched them worldwide). Because aprilia stopped the production about 2 years ago. As mentioned in the video these are "new (used)" plastics. The front panels (as long with a whole sticker kit) I good luckily from a mate in my aprilia Facebook group and the rear panels I refurbished. Which took me easily 5++h for each. Maybe you just keep your eyes open, maybe you're lucky finding some soon on ebay or so...

[@alphabetlotteryltd8860]

Well done to you! An excellent job! I have a year 2000 Aprilia ETX 125 that I am doing up. Do you know if the MX 125 engine will simply fit into my chassis?

[@malamutebikes1340]

It's the same engine, so you don't need to swap it.

[@Ejdmecek]

4 stroke exhaust on 2 stroke ?..

[@malamutebikes1340]

No, why?

[@Ejdmecek]

@@malamutebikes1340 muffler looks like 4 stroke

[@malamutebikes1340]

@@Ejdmecek It's the Scalvini MX Set. So all two stroke exhaust (with nice power).

[@Martin-hq7go]

Where did you buy the vforce 3? Can i get a link?

[@malamutebikes1340]

Most of my tuning parts are from this page... www.pjme.co.uk/acatalog/Aprilia-RS125-V-Force-3-Reed-Valve-System-615.html

[@willaitkens6534]

I'm about to get one of these off of a friend, how easy are they to work on for a beginner?

[@malamutebikes1340]

It always depends on the condition of your bike. For me I have to say it's not my first 125cc aprilia I've restored (I'm riding them since I'm 16 and that's already a while ago 😅). The biggest problem is to get parts. Most of them you just don't get anymore, even in a used or poor condition. So you always have to improvise.

[@aidanpike1635]

Had mine since 16 (17 in 2 weeks) mx50 with 90cc bore kit. Easy to manoeuvre, sound great and if treated well will last. Thoroughly enjoyed mine 😁

[@willaitkens6534]

@@malamutebikes1340 me again... only a little while since my last comment :D. I would have to agree, trying to find used parts, let alone new ones, is a huge challenge. I'm after some new plastics and stickers, where did you get yours if you can remember?

[@malamutebikes1340]

@@willaitkens6534 Sorry, it's almost impossible to find some. You'll need a lot of luck. I got mine from mate.

[@issaacxxx6202]

I wanna see one of these converted to motocross

[@malamutebikes1340]

They already exist as an Enduro-version (RX/ETX).

[@lazzarolavana4491]

Did you remove the mixer after many modifications?

[@malamutebikes1340]

The "mixer"? What? 😅😂

[@lazzarolavana4491]

@@malamutebikes1340 ehm sorry I don't speak English very well😅... I meant the device to combine oil and petrol. Hope you understand now😅

[@malamutebikes1340]

@@lazzarolavana4491 Yes, now I got you. 😅 No, I'm still using the oil pump (and not mixing myself). I still have some tuning in my mind with that bike and will still use the oil pump. But I also have another project in preparation which needs the oil pump to be removed. 😎

[@lazzarolavana4491]

@@malamutebikes1340 thank you so much💪🏻

[@toivovenalainen1227]

@@malamutebikes1340 Do you know how to adjust the amount of oil going into the engine from the oilpump.

[@francescolamesi]

How much for buy It?

[@malamutebikes1340]

Buying what? 😅

[@francescolamesi]

@@malamutebikes1340 the bike

[@malamutebikes1340]

@@francescolamesi Sorry, I wouldn't sell it. These bikes are my passion and I'm already working on another 125cc aprilia that could be even better (but probably not road legal) and these are all part of my collection (same as my SXVs).

[@francescolamesi]

@@malamutebikes1340 I meant how much you paid just to buy it

[@malamutebikes1340]

@@francescolamesi The bike itself cost me about 1000€. The rebuild about almost 4 times as much...

[@simocsr3097]

Top speed?

[@malamutebikes1340]

kzbin.info/www/bejne/sKW0g5Sbf9x0rrs That's my test...

[@bass2958]

Lol das war doch beim Mc‘Donalds in Regenstauf oder ?😂😂😂

[@malamutebikes1340]

😅😅 Das kann sein, dort in der Nähe habe ich sie zumindest abgeholt und mir dann den ersten Parkplatz gesucht (das waren gut 500km je Strecke für mich) 😅

[@j0d162]

yes but if not even warm it

[@malamutebikes1340]

Hi, sorry I don't understand what you want to say?!?

[@trianedtog0417]

@@malamutebikes1340 what oil and jets you got in your 34mm vhsb dellorto carb

[@Sliceod]

Hi man, can you give instagram or something because i have same aprilia and i have problems with it maybe you could help me

[@malamutebikes1340]

No problems. You'll find me at Instagram, Facebook with Malamute Bikes.