1986 244cc ezgo backfire

[gibber]

new engine, only used carb, fuel pump and stator plate from old motor,and mycart backfires not all the time cannot figure it out ,carb has been cleaned, new gas , but the timing might not be set right this is a 2 stroke engine and not sure how to set the timing please help thanks

[ruredy]

Does it backfire when you let off the gas, or when you give it gas, or every now and then at no particular time?

[gibber]

mostly when you give it gas i think its not timed right do you know what degrees from top dead centre it should fire at thanks

[gibber]

it should not fire at tdc should it ,or a little before

[bmarley93]

who cares if it backfires let her run!

[ruredy]

Because the 2 strokes have to run backwards, timing has to be tdc or real close to tdc. you can adjust some models alittle but it seem more trial and error than anything.

[MikeSavasta]

I also have a 1986' 2 stroker Ez-Go, and have the same problem. I am going to try to get the manuel uploaded for this cart tonight and it should have the Timing needed for it. I am about to do a top end rebuild on mine and plan to adjust the timing once in there.

[DOOmsman]

Most 2 cycle back fires (in reality are spit backs) caused by the combination of low engine RPM and the fact that the spark is set for operating RPM,(fixed). Add in a lean stumble through when opening the throttle (no accelerator pump) the engine pre fires and forces a pre detonation back through the crankcase and out the carb.
Lean caused by (altered or faulty air box) (miss adjusted idle screw)(partly clogged idle jets, airways)(low fuel level in carb). On going spit backs are hard on the reed valves. GOOD LUCK

[dock98]

welcome to BGW.