Motorcycle Repair: cylinders, sray, good fire

Question
I have a 81 yamaha max550 two cylinders are not firing like they are on the other side,I`ve got good fire the spark plugs and fuel in the carbs. what next?

Answer
hello lee,

fuel in the carbs doesnt always mean fuel goes into the engine , i would take the air cleaner off sray carb cleaner in the 2 cylinders not firing if they fire then i would clean out my carb line,also you could swap the coils to the cylinders thst are bad from the cylinders that are good to determine what yur problem is, i hope this helps you .If you need more feel free to contact me ok.

Sincerely,
Mitch