All 2st Jetting Chat - Need Help? Post Your Questions Here

Hello.
Can anybody tell me what is the Number of electronic device to control exhoust power velve in wre/SMS 125 year 1999?
because mine isnt working And numbers are completly unreadable. Is it 7427 or 7428 or 7429?

the number on yours is quite clearly 7427

is this not yours?

ofcourse it is not mine , i just added an example how it looks because they looks exactly the same the diferences are only number

Apologies if this has already been asked. I want to check my jets on my 06 wr250, but i cant even work out how to rotate my carb. Am I doing something wrong because this seems impossible without dismantling half the bike. I can't rotate because a) it hits the fuel cock and b) the throttle cable goes through the engine mount. Seems I have to take the airbox off and pull the carb off backwards. Am I missing something obvious? See pics...

Sup everyone. I have a 2001 wr250 with the pc system and switched over to a 38 pwk air Stryker and looking for some help. I live in St. Louis Missouri where it’s humid and ride close by in the woods at 700 feet at around 40-100 f degrees mostly 50-70 f though. or 4-37 c/ 10-20 c for you guys across the pond. For cold weather I Currently got a 42 in it, blue needle in 4th clip, with a 175 main and getting burble on low and middle rpms but the wot might be ok as it has no pipe bang coming down the revs from up top in neutral.. also have a red needle to try and a DDJ needle. any help is appreciated!