Kitted Puch Woes

jae lee /
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Here's the set up

-70cc tccd cylinder

-21 mm dell orto with a 92 jet

-techno estoril

-30:1 mix for break in purposes.

ok so here's the problem:

A couple of weeks ago i had the ped put together and it was running fine. Then this past weekend it started sputtering and backfiring. I thought it was the pipe being clogged so i took take off and tried to see if would start without a pipe on. ...nothing. I checked the carb and it was clean. I'm getting spark ( i get spark when i turn the flywheel with my hand), i have compression, and gas is flowing to the carb. I also noticed that when I turn the flywheel by hand gas and oil sprays out of the exhaust port. I've tried adjusting the timing and still nothing. I'm stumped as to what problem could be. Could it be the condensor?

any help would be appreciated.

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