backfires thru carb
 

when i trun my 127 over it pops tru the carb is a value sticking if so how can a loosen it up with out taking the head off Thanks guys:bash:

Well, take off the breather cover, watch the valves as you turn it over. Diconnect spark plug wire so you don't get hit in the face... If the intake is sticking, penetrateing oil through the carb, and see if it helps. You may have extreme carbon buildup in your head and deck area, or a burned intake valve, so you may need to take the head off anyway. It isn't hard, and it's a good idea to clean the deck and head anyway

Usually if you have a sticky valve, it'll be the exhaust valve. If the valve are working correctly, the timing is probably advanced too far and causing the spark plug to fire before the intake valve is closed.

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