Hey gang,
A rookie here so please be kind if i sound like a dumbass.03 banshee with cool head,t-5's, keihin carbs,k/n filter no airbox. and a boost bottle,these are the only mods i know of as i bought the bike used and until now it has ran flawless.
I am running on one cylinder as we speak.I have changed and gapped plugs,had the coil pack tested,swapped out the cdi box from a friends shee and mine is good.Pulled both carbs and cleaned the daylights out of them.I did a compression test on both cylinders and they are 95 psi in both(according to my local yamaha dealer it should not run so i held the phone down to the pipe and he said i dont know what to tell you and hung up) MY friend with the other shee says its carb so we switched carbs around and sure enough now it runs on the opposite cylinder....At this point i have pulled this carb apart 10 times cleaned and re-cleaned and still the same result..My question is can a jet go bad? The bowl is always full when i pull it apart and there is fuel blowing out the dead cylinder when its running on the other.Getting frustrated ....any help is appreciated...Jim