monkster

i got the proper jetting from gas gas uk " the ones they said they use on the bike from factory" and theres no play in bearing "pulling flywheel up and down" and tested seals by pressurising the hole engine

im just wondering would the voltage regulator module or this we thing in picture cause this or cdi unit?

just so i no it was jetting and carb was working properly

sorry only getting to reply now but ive re jetted the carb checked reed vavle cyclinder compression checked the timing and replaced the reed valve rubber and the bike is a bit better but its now missing/back firing any help?

ok thanks will do that tonight and let you no but it seems like its sucking in air from somwhere so ill check the crank seal when the tool comes

That's my next plan I'm waiting on a flywheel remove tool coming to check it. Are u able to adjust the timing on them just incase the person I bought it of was messing around with timing thanks

i have a 2001 gas gas 250 idling problem when i start bike and give it a rev and let go the revs seem to be staying up ive tried a different carburetor and reed valve seems ok the fuel mixture is 80/5 and when the bike is warm and i turn it off and go to start again it wont start unless i put the choke on ive changed the plug 3 time to the factory one (NGK BPR5ES) all help appreciated