Ok so my bike has fouled the plugs ever since I got it....I just cleaned them last week and it fired right up....then I went to let it run for a bit today...and it backfired extremely loud...and would not start...same thing its done every other time its fouled them...they are decently new plugs...and so I called my dad and he said he thought it was a stuck float valve in one of the carbs. But....I read somewhere on here that petcocks are not supposted to let gas through unless the motor is on..due to the vacuum...but...i think mine might just pour out when in the on posotion...idk I need some recemendations here

 

Your petcock might need replacing/rebuilding.

Is your bike hard to start?

Did you "throw everything back together in a hurry" ? You may have made a mistake somewhere (I do it all the time).

If you clean your carbs,Yamaha (I hate to admit it) makes the most wonderful carb cleaner that doesn't eat up your rubber parts.

 

well I didnt take my carbs apart yet...so im sure its all together properlly....i just cleaned the plugs and changed the oil..and it ran good for about 3 times...but now is fouled again....so maybe rebuild the petcock..how hard is it to rebuild carbs for our bikes?

 

does anyone know where to get a carb rebuild kit as well as a petcock rebuild kit?