Have you taken out the carburetors out and looked inside?
Your problem might be a dirty carb. If you have the time and experience just take out the carb, open them up and give em a thorough cleaning. I use break cleaner for that kind of thing, but there are specialized cleaners for carburetors available.
If you can't be bothered, there's also fuel additives available which are supposed to clean the carb while running the machine. Worked for me once but I would not count on it.
|