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need more information , how you can see fire out of intake ?

sorry for all buddy , i just try to help us to jet your bike. the answer is if 145 is too rich , then 140 should be better. when i tell you to try 150, none of you where able to tell me that the engine running too rich . engine cut out is not an effect of rich jetting. most of time lost of...

Now you have stop to freak out. so i realise you where unable to jet a bike, look the hmf website ! LOL HMF Recommended Jetting for Wolverine 450 (06-10) 2006-2009: Slip On: 140 Mikuni Small it will be a pleasure to listen to your next wolvy problem

have you finally found wich jet you need ? LOL

the problem with a newb is that when they touch a carburetor , their bike run enven worse. much newb break carburetor when they touch it ! it shoot solvant on the diaphragm, forget a oring somewhere or maby then dont ajust the flot in the good way ... also, newb cant tell the difference of a...

open air box application should only used when racing , with cam , porting and bigger carburetor !

running open airbox will let every **** enter your airbox, tbracelin: how do you know you need more air LOL. and maby you think mor air = more power LOL. Lack of power in high end = lean ( need more gaz). if you have too much gaz ( rich ) you should have power but the bike should sputter at...

try 150 main jet !!!

anything !!!

Get higher pilote jet , and mainjet , and raise your needle ...

have you try to start with booster? the valve noise is terrible ? are you rocker arm worn out ? is your valve clearance check ?

yess the 400 complete engine are direct swap , only need to modify the frame cylinder head stay bracket. but for the price it is easyer to change only the clutch , but the thirn first geare of a bb 400 are slower too.

i suggest you that you write a signature with your bike . like you can see there no many mechanic here lol. Every bike are different and like i said try to learn to jet the bike yourself , buy jet and try if the bike run better. Manufacturer like k&n say that there no need to rejet the bike, but...

have you ever think to tell us what your bike ? :hi:

you must learn to jet a carburetor if you want to do mod on your bike . if you wont bring your bike to mechanic.

you battery is weak, stage cam raise the valfe faster than stock cam so it need more power to the starter. try starting with a booster if not better maby your starter is defect.

if you had tell that your engine is misfire once you apply throtthe . ... everyone know this issue lol

you should get higher pilot jet and raise the needle. then try higher main jet. k&n filter is bitch to tune with a free flow filter. lean jetting should produce backfire and pigning, very lean condition will shut the engine. rich condition produce burpeling and wont rev up but will not shut...

your video are private so we cannot see them

you need to swap the two clutch from a big bear 400. the primary and the secondary clutch. the big bear 400 clutch have higher gear ratio , you will be slower but stronger !