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Best I can figure the rod to the timing advance is, I tried adjusting it and it didn’t get any better. Al for the coils, all of the spark plugs have spark.
So it’s a Nissan 140a 2 stroke with 4 carbs. The motor idles fine, but when given gas it starts to make noise (surge?) and shake bad. I have throughly cleaned the carbs twice and have tried my best to sync the carbs, but I’m not sure they’re 100% synced. New gas tank, about half of the fuel...
