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Old 08-20-2012, 06:15 PM   #1
DonoBBD
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Join Date: Aug 2012
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Question 1988 EZGO. Backfiring.

We have a two stroke 1988 marathon EZGO golf cart. All the clutching works great may back shift kinda quick.

This cart back fires allot with the boys driving the crap out of it all the time. It seems to backfire so hard that it effects the fuel pump some how. Then it seems to vapor lock or will not flow enough fuel to run the cart. Sits for a bit then it is fine. More air in the see through fuel filter. Work the air out and it is good for a few days but will in time it will do the same thing.

Did feel that the spark plug had a very orange but very large spark. Is this normal? On sled and bikes I like to see a very blue crisp spark.

Is there any carb adjustments I can do with out taking the carb apart to help this back firing out?

Going to start with a new plug.

Cheers Don.
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Old 08-20-2012, 06:18 PM   #2
1moretoy
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Default Re: 1988 EZGO. Backfiring.

Don't run it too long backfiring. Usually it is sucking air from the exhaust gasket or the carb butterfly is not closing all the way or is worn out at the pivot point. Try checking the gasket and the ensure you have a strong enough sprint on the carb to close the butterfly.
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