Hello there

Not sure if I can explain this well. But my 90 (2003) will run great then the very next day, it runs like it is missing ignition timing or something, sputters, back fires then just stalls. last time this happend I changed the plug and all was well. Road the bike for 5 days in a row on vacation then one morning the problem started again. have not had a chance to try another new plug. is there any chance I could be going through plugs for some reason? I also drained out my Synth 2 stroke oil and put in regular 2 stroke as this is the only difference between mine and a friends and he has had know problems. Still waitng for the Synth to get completely out of the system.

When I pull the plug it is soaked. Check for spark adn did notice before wire brusheing it that it was sparking down the side of the ceramic tip not over the end all the time

 

No Plug end wire is nice and snug and reads about 10K on meter. I am still using the oil injection. Adn I just cleaned the air filter