Crf50 88cc big bore kit install and first fire!

I got the top end buttoned up and the engine thrown back in the bike for it's first run!
Join the new discord server!
/ discord
Parts on the bike
Amazon:
ProTaper Bar Kit - amzn.to/2QmzKRD
FMF Powercore 4 Exhaust Big Bore - amzn.to/2QnK0c7
Shift Lever - amzn.to/2WvbdOb
Ebay:
Shock - 10" FASTACE 22AR U SK19
(These seem to be getting really pricy)
Tbolt:
High Compression Big Bore Kit - tboltusa.com/s...
Tall Seat - tboltusa.com/s...
Headed to an 8 hour race soon with M1GP:
m1-grandprix.com/
Follow on twitter:
@_GarageAddict
Music:
No hay como tu by Barradeen
Summer coffee by Barradeen
Save my life again by Barradeen
/ barradeen
Music promoted by www.free-stock...
Creative Commons Attribution-ShareAlike 3.0 Unported
creativecommon...

[@cosmicjayofficial]

Man! , thank you for this video. Ive always wondered how hard this would be to do. Now I know and understand well. Thanks again good job!

[@GarageAddiction]

Thanks, glad it was helpful!

[@G-Boyz.Outside]

I've had a full TB88 in my bike for 15 years I finally blew it up and I put a 108 and I love the power

[@GarageAddiction]

I can't imagine how wheelie happy a 108 must be.

[@G-Boyz.Outside]

@@GarageAddiction 4th gear 10,000 RPM can keep it up

[@KG-yc6cl]

Had any problems with the 108? What else did you have to put on to make it run right? Which carb, etc...?

[@G-Boyz.Outside]

@@KG-yc6cl 108cc 4-speed And a 26mm Makuni carb

[@G-Boyz.Outside]

@@KG-yc6cl No Problems I have about a 110 hours on it right now and still runs hard

[@CalebEckenrode]

Good stuff! Thanks for the help!

[@michaelsaint7325]

T Bolt USA seems to be the best in this area for having me your engine rebuilt new crankshafts piston cylinders carburetors all the information you could ever want kind courteous service, just like businesses used to be.

[@Tuckem2STOGS]

If you use a square drive screw bendit sideways you can put that Square tip bolt that you can adjust the lashwidth that way you can hold it exactly what you want it and tighten down the jam nut

[@GarageAddiction]

Yeah someone commented on using needle nose pliers and an open wrench too! Solid tip!

[@shindukess]

So helpful and detailed. This is the same engine the Yamasaki 4-speed bikes use but theirs is a clone.

[@briarhezekiah925]

Instablaster

[@jagsfanrick]

New sub. Don't own a motorcycle but find this very interesting.

[@GarageAddiction]

Awesome, thanks for checking out the channel!

[@Sneaky_snekk]

Sorry for the correction but its s dirtbike

[@perezan2010]

Just grabed an 01 XR50r yesterday!.. Sweet vid!

[@GarageAddiction]

Hell yeah, these bikes are a riot!

[@stevebrankin9582]

Nice ! 👍🏻 Thanks for sharing this !

[@minibikeaction4266]

Dudes got a brain.

[@MohammadBashir-w4j]

if i was going to do a rebuild like that i would use a dedicated break in oil for proper wear and to seat to rings properly at full throttle.

[@thecrewbmx]

Love your channel. You desurve way more subscribers. Keep it up!

[@GarageAddiction]

Thank you!

[@silkcustoms520]

Great Job. Is that back tire a 3.50 -10 ? I was curious if it fit the stock Swing arm.

[@GarageAddiction]

Thanks! I had a 3.5 on there with the stock swing arm. It's a hard fit, it has to be all the way back in the arm and it limits gearing choices. I found 3.0x10 front and rear to be the best setup.

[@charlieatkinson2728]

Love your channel bro keep up the good work!

[@GarageAddiction]

Thank you!

[@daniellevinson3508]

Was hoping for some help. Bought my boy a 50 and was told it's an 88cc. Carb went bad leaking fuel replaced it with a cheap carb from Amazon and now it revs up so high I feel it's gonna explode. Just ordered a carb that's ment for an 88. Would the smaller carb cause it to Rev so high? Also, now the needle or throttle assembly keeps getting stuck. Replaced it, worked fine for a second. Then got stuck again. Any help would be appreciated 🙏

[@GarageAddiction]

Have you tried adjusting the idle and air screws? For the needle pull it to make sure it's straight. Also check to make sure the needle is seated in the cup with the spring and retainers keeping it in position.

[@alejandroventura3354]

Yup definitely the wrong piston my friend. That piston for sure is for the 88 stock head. You have part TBW0190. The correct one is TBW0365.

[@GarageAddiction]

That would explain the problems we were running into today I think. Back on the bench to look at her. Thanks for the comment!

[@dfitzism]

His piston will work, just not as high compression as other piston.

[@kieranmurphy7659]

Thanks alot very well detailed video nice 1 👍

[@GarageAddiction]

Glad it was helpful!

[@jordanvillanueva023]

Awesome video what’s the top speed on these with the 88 kit

[@GarageAddiction]

I want to say around 45 depending on gearing but I’ll have to bust out some gps to check :)

[@jordanvillanueva023]

Garage Addiction Cool sounds good let me know what you get on the gps. I’m thinking of buying one that has a kit installed already

[@G-Boyz.Outside]

I would say 88 goes about 75 km and gearing is a big part of it

[@daniellarsen2641]

How many teeths do you have on the rear sprocket? Nice video!

[@GarageAddiction]

15 front and a 37 rear for right now. I've got a bunch of different sprockets to test out on the track. Thanks for watching!

[@Lorenzo-yg6hn]

Hey man great video, I just got the tb 88cc bbk and I was wondering should I get the race gas? I’m just riding around the neighborhood and what makes it high compression? Do you think I will need anything else? Thanks

[@GarageAddiction]

I think you're probably fine unless you got the kit that comes with the high compression head. It's a domed piston with a head that has much larger valves. I also put these through hell, 4-24 hour endurance races with zero down time.

[@Lorenzo-yg6hn]

@@GarageAddiction I don’t think it was the high compression head. And if I’m still running it with the stock auto clutch will it mess anything up or am I fine with it? Thanks for the help love the channel!

[@GarageAddiction]

Auto clutch is great, just a little more grabby with an 88 kit which is fun for wheelies. Glad you enjoy the channel!

[@Lorenzo-yg6hn]

@@GarageAddiction yea ofc thanks!

[@thomasmccann8112]

Where do I get that piston and cylinder kit for my little 50cc rupp trail bike that has a 39mm standard bore? Thanks Tom

[@GarageAddiction]

I've got a link in the description for the kit, I grabbed it from Tboltusa.com

[@MCMotosports]

In your video you mentioned the shinny ring piston goes on the bottom and the black ring goes on top. You have them reversed

[@Fixin2Ride-Official-]

What rear shock is that? Also did you upgrade the forks?

[@GarageAddiction]

I have a Fastace in the rear and I’m currently running some two brothers heavy duty springs in the front. 10" FASTACE 22AR U SK19 is the rear I picked up.

[@Fixin2Ride-Official-]

@@GarageAddiction awesome thanks!

[@johnlegg6837]

What would be the best gearing with sticking with the 3 speed trans? Been looking at the stage 3 kit with the race head. I have a 34T rear gear on my 50 now.

[@GarageAddiction]

Depends on the track, I run 15/37 at my kart track and it's got a nice band.

[@TheBlairHomestead]

You can install these kits?

[@agalvanf]

Hi, what is the kit for full suspension? also what is the fork (long)? regards

[@GarageAddiction]

Rear Shock - 10" FASTACE 22AR U SK19 Front Forks -Two brothers stiff springs in the stock fork. Tboltusa and Fast50s have some solid options

[@Byz_nasty_racing111]

Hey, I have an 2003 Honda XR50 with an 88 big bore, I’m trying to buy the right intake manifold, because I’m trying to put on an xr70 carb, do you have any tips for me?

[@GarageAddiction]

Not sure what the best option is since I haven't messed with a 70 at all. Looks like the 70 carb is a 24mm so maybe this if you're running the stock head. tboltusa.com/store/tbparts-20mm-24mm-intake-kit-for-stock-head-br-crf50-xr50-p-279.html

[@Byz_nasty_racing111]

@@GarageAddiction ok thank you a lot

[@GarageAddiction]

@@Byz_nasty_racing111 No problem , good luck!

[@Byz_nasty_racing111]

@@GarageAddiction I have a few questions for you, is their any chance you have snap or something like that? Thanks.

[@GarageAddiction]

Got discord discord.gg/g48AAvnnft or Insta @garageaddiction

[@minimoto8146]

did u put new forks and new shock on it

[@GarageAddiction]

Stock forks at this point in its life, later upgraded to the stiffer two brothers kit. Rear is upgraded to a beefier shock.

[@matthisingelbrecht4401]

do these kits last?

[@masoncalimlim3695]

Sick 50 thumbs up all the way from hawaii

[@jamesrife6475]

Does the cam have a mark for tdc? Just curious what’s gunna happen if your off 180 degrees

[@GarageAddiction]

The cam doesn't have a timing mark on it but when installing it the lobes face the engine so that the valves are closed. The flywheel and cam gear have the marks, line up T on the flywheel and the circle on the cam gear with the notch in the head.

[@jamesrife6475]

@@GarageAddiction thanks man I’m installing a 88 kit and I was kinda confused but after messing with it it really only goes one way lol either right or wrong so thank you for the info💪🏼

[@NaturalKratom]

found this channel on recommended, i will subscribe it seems nice. but i suggest you make shorter videos like 10 min and try make episodes instead of one full video, cuz most people dont whanna watch 40 min videos ;d

[@GarageAddiction]

Much appreciated! I'm definitely planning on releasing shorter videos in the future :D

[@matt68061]

I for appreciate the longer, more informative vids. Appreciate your sharing some knowledge.

[@dylan51racing]

@@GarageAddiction Nope, the long videos are awesome. I was really glad they were as detailed as they were. Very entertaining and informative.

[@GarageAddiction]

@@dylan51racing Thank you!

[@G-Boyz.Outside]

I definitely agree

[@daviswayne1601]

I have a pit bike as well it had a 90cc engine in it then I swapped it to 110 cc engine and I've been running the stock CDI box I don't know if it's okay to do that or not

[@GarageAddiction]

I have no idea, I figured the larger engines would have shipped with a different CDI.

[@atvatv8391]

Need a little help here, have the 88 Big bore kit in. High RPM it runs great but at low RPM it boggs. Any suggestions would be greatly appreciated!

[@GarageAddiction]

I would try adjusting the needle position and see how that affects the low end bog. Moving the clip up makes it leaner and the clip down for richer.

[@atvatv8391]

Thank you , just moved it from the 2nd position to the 3rd. Definitely not bogging as much , almost no bogging in first or second gear, may try going to 4th now.

[@GarageAddiction]

Nice, glad it's running better!

[@johnlegg6837]

Is there any type of directions that come with the kits?

[@GarageAddiction]

It doesn't come with any but there are some on the tbolt site.

[@marcosrodriguez964]

So I bought a coolster 70cc bike the engine runs but I wanted to fix it up a little better do you have any suggestions or what I am able to do I looked for parts for it and I don't know what I could use this is the first bike I've ever had anything would help

[@GarageAddiction]

I’m not familiar enough with the Chinese bikes to say what fits for sure. Checkout Tbolt USA they’re usually my go to for parts on my 50

[@linksgarage1985]

Great content. Subbed.

[@GarageAddiction]

Thank you! Comments like this keep me going!

[@linksgarage1985]

Informative videos are hard to come by. Few guys out there like you. Mini bike mikes is another good channel. You guys deserve 100k subs. Keep it up. We appreciate it.

[@GarageAddiction]

@@linksgarage1985 awesome, thanks for the suggestion, I really like his channel too!

[@curtisstunts_3145]

I'm wanting to rebuild my crf50 and can't find any 88cc kits anywhere. Do you know anywhere I can find one. Thanks

[@GarageAddiction]

Check out tbparts or tboltusa they should have a few different kits in stock

[@curtisstunts_3145]

@@GarageAddiction Thanks man, helped a lot. I knew about tbolt just not the tbparts site

[@aarestorations7867]

What’s up man sick I actually need to do this same thing with a little pit bike I have how is it running now.

[@GarageAddiction]

Unfortunately either the cam or the oil pump was bad when I put this together and it grenaded at practice for the 8 hour endurance race. I've rebuilt it a few times but it really doesn't like endurance racing lol.

[@aarestorations7867]

Dang u 2hrs from willow springs are u in Cali area

[@GarageAddiction]

@@aarestorations7867 Down in the Irvine area

[@aarestorations7867]

Cool deal man well I subscribed to your channel I love reneging all the time ✌️STAY SAFE

[@GarageAddiction]

@@aarestorations7867 Thanks for checking out the channel and slapping that sub button, stay safe too!

[@eyeopener1993]

what was your top speed?

[@GarageAddiction]

It was roughly the speed of a stock grom so like 50ish

[@coltonc8367]

What carb did you run on this build

[@GarageAddiction]

tboltusa.com/store/tbparts-20mm-carb-br-z50-crf50-xr50-ct70-pit-bikes-p-280.html

[@coltonc8367]

@@GarageAddiction thanks for the Reply!

[@s2000pill]

good video

[@GarageAddiction]

Thanks!

[@fritzgottwald7044]

Hi, I was wondering what kind of suspension are you running front a rear?

[@GarageAddiction]

I have a Fastace in the rear and I’m currently running some two brothers heavy duty springs in the front. 10" FASTACE 22AR U SK19 is the rear I picked up.

[@udefined187inprogress5]

is the FMF alot louder than the stock?

[@GarageAddiction]

Yeah the fmf is significantly louder

[@udefined187inprogress5]

@GarageAddiction probly not good for mobbing the neighborhood then lol.

[@greafer8635]

Where did u get your carb ??

[@GarageAddiction]

Tbolt USA

[@mrbucket3347]

Can you run premium gas in this kit? I want to order one tonight but i only have premium gas .

[@GarageAddiction]

I ran premium (91 here in CA) and I'd say go for 100 at a minimum. The signs of detonation were pretty prevalent. I was running it under harsh conditions though given that it made it 12 hours straight in an endurance race.

[@mrbucket3347]

@@GarageAddiction my son's xr 50 need a top end kit i only have 91 what kit would you recomend ?

[@GarageAddiction]

If you go for the regular, not high compression you should be fine on premium. tboltusa.com/store/tbparts-88cc-big-bore-kit-br-for-z50-crf50-xr50-1988-present-p-759.html

[@mrbucket3347]

@@GarageAddiction YOU FKN ROCK DUDE THANK YOU !

[@loganhenry3322]

C12 in a pit bike whoa

[@GarageAddiction]

Yeah when we were running the high compression setup it was detonating badly. Currently we're on a normal 88 piston due to ordering the wrong part and losing another engine to a bad oil pump :D

[@loganhenry3322]

Where do you find a high compression pistons for that thing

[@GarageAddiction]

tboltusa.com/store/tbparts-race-head-88cc-big-bore-and-20mm-carb-kit-br-for-z50-crf50-xr50-crf70-p-883.html This was the kit we were running at the 24 hour when it made it 12 hours before letting go. Alejandro pointed out that I ordered the wrong piston, the one installed wasn’t domed. TBW0365 - is the high comp piston from Tbolt :)

[@dfitzism]

I run the best fuel I can find, glad to see someone else running good fuel!

[@alexboii909]

Is this on a stock bottom end ??

[@GarageAddiction]

Crank is stock, it does have a HD clutch and larger oil pump with drilled passage.

[@vdubplate]

How much faster is it w bigbore kit?

[@GarageAddiction]

On the track is was keeping up with stock groms, it needs better brakes for how much it puts down.

[@itzaimassistxbox4120]

what’s that ticking noise is it the cam?

[@GarageAddiction]

Probably a combo of the valves which are a little noisy and the air filter which actually adds a ton of noise over the stock airbox.

[@SaltyD619er]

Do you have too pre mix gas for CRF50?

[@GarageAddiction]

Nope, the Crf50 is a 4 stroke

[@SaltyD619er]

@@GarageAddiction thanks brah

[@SaltyD619er]

@@GarageAddiction are you a mechanic?

[@SaltyD619er]

Just asking because I had another question! Lol

[@GarageAddiction]

I'm not by trade, just love working in the garage haha

[@NshsShdh-jx9ob]

❤️❤️❤️🥰👍

[@twiggered4741]

Any info about tuning on these carbs?

[@GarageAddiction]

If you're running an 88cc kit I'd start with a 92 main jet and a 38 pilot jet, needle at the third notch from the top and the air screw about 1.5 turns out from seated. Definitely pick up the jet kit at the same time, I couldn't find any jets that would fit locally and had to grind a pilot down to fit.

[@twiggered4741]

Already bought a jet kit Running the 88 kit, stock head with a 189 cam, pz20 carb that comes with the big bore kit, just can’t seem to get jetting right for pilot seems super rich still even going down to a 35, I’ll try what you said and see how that goes, appreciate the response

[@GarageAddiction]

I also have my idle almost seated, good luck!

[@daniellevinson3508]

Replaced the throttle assembly also I meant.

[@dudurosca273]

From 72cc tp 88cc must change the chain too?

[@GarageAddiction]

You only need to change the chain length if you change the sprockets or fit a massive rear tire. A 3.5 on the rear needs to be alllll the way back in the stock swingarm.

[@dudurosca273]

@@GarageAddiction ha ha ha. Sorry for my bad english. I want to say distribution chain not weel chain

[@GarageAddiction]

Ah got it! There is no need to change the cam chain.

[@dudurosca273]

@@GarageAddiction so from 72cc to 88cc just piston kit. Can i use same head valves? And same carburetor? I am sorry for my english.

[@GarageAddiction]

You can use the stock head with most kits, I’ve never run one with the stock carb so I can’t speak to that though.

[@daviswayne1601]

There shouldn't be a open head bolt I have two of these engines and all forehead bolts are capped

[@GarageAddiction]

Turns out it varies by year, the newer engines rock full caps and the older ones have one open. Also I have mine on the wrong stud haha

[@azbl9441]

Link to those bars

[@GarageAddiction]

ProTaper Bar Kit - amzn.to/2QmzKRD bam!

[@arturoperez2028]

please tyres brand and sizes?

[@GarageAddiction]

Michelin 3.0x10 front and rear

[@arturoperez2028]

@@GarageAddiction thanks mate... please top speed ?

[@GarageAddiction]

With the high compression piston and head it was about as fast as a stock grom so like 50-55. Regular 88 piston and stock head feels more like 45.

[@arturoperez2028]

Garage Addiction thanks awesome videos... please more!

[@arturoperez2028]

thanks for all your support... also please give me details about front forks, thanks

[@LarsBerntropBos]

I put the cam sprocket in the chain before putting om the head. Way easier. Example: kzbin.info/www/bejne/a2Wbg62FbbGNlac

[@DanielTojcic]

You look like driftor

[@GarageAddiction]

Probably even more so now :)

[@hessdominguez170]

There usually 9mm lol

[@billbkr32ify]

Don't ever adjust your valves like this. Always do it with the valve head installed along with the timing chain on with full tension on it. This is not the way to adjust your valves.

[@billbkr32ify]

Can get away with it? Yes. Will your valves be adjusted accurately? No

[@blakedyer6778]

were did u get the kit from

[@GarageAddiction]

tboltusa.com/store/