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juice

New Member
Hai guys currently in need of help as i have recently done fullspec 62 for my x1r/lc135 but its sempot/bobok

62mm block
superhead 20/23
uma carb 28mm
28mm header leovince exhaust pipe

some say is my header too small some say its my carb needs to be reset specifically the main jet
i need help hahaha any1 maybe more knowledgeable in this could help me out ?
 

traxxas-modifier

Super LOLO
Staff member
hi bro, i use to have the same specs with you superhead and 62mm block.
im using 26mm carb back then, its more on tuning your carburetor.

by the way, Tuneboss have a new Tunable CDI that recently on the market. its good for CDI bikes.
also my advice is if you have a dyno tuner there in your area, its better to have your carburetor to be tuned by dyno.
once all it tuned, your setup is good. its worth it.
 

juice

New Member
hey bro i just change spec 63mm with standard head 28mm carb with 28mm header leo vince pipe its better now ive just done dyno and tuner said theres abit of bobok but its cause they say my exhaust airflow . but im not too sure as someone else is rocking 62 with superhead with yoshimura exhaust and his felt better and using standard header too im just lost atm but my current setup at 90 ish i could start to feel abit of the bobok but with the throttle still open it will go away what should i do ? speaking of cdi yea im planning to get the cdi too looks good n the features n all really is gonna be helpful
 

rynando

New Member
hey bro i just change spec 63mm with standard head 28mm carb with 28mm header leo vince pipe its better now ive just done dyno and tuner said theres abit of bobok but its cause they say my exhaust airflow . but im not too sure as someone else is rocking 62 with superhead with yoshimura exhaust and his felt better and using standard header too im just lost atm but my current setup at 90 ish i could start to feel abit of the bobok but with the throttle still open it will go away what should i do ? speaking of cdi yea im planning 뉴토끼 to get the cdi too looks good n the features n all really is gonna be helpful
 

jannickz

New Member
A rich air-fuel mixture (too much fuel) can cause sluggishness and a feeling of being choked. Solution: Try adjusting the main jet in your UMA carb to a slightly leaner setting. Start small (maybe one size down) and test after each adjustment.
 
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