Don't know what to do..

Alex Sturtevant /
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Just finished a complete rebuild / restoration of a 1980 Puch maxi. The engine runs but it won't idle and will only run if it's at wot. The engine dies if you let go of the throttle as well and the engine provides no power to the wheels. Already looked on the forum with no luck.. It's all stock except it has a hi-flow airfilter. The brake/tail lights are not working / not wired right now. The bike ran fine two days ago, after rewiring it did not run. We wired it back to what we had it at before but still no luck. We checked spark, gas, cleaned the carb, and tuned the carb. still nothing. It's jetted at 70 for the hi flow air filter. any ideas? Checked exhaust w/o pipe it ran idled and reved up well seemed to have power. Changed to another clean pipe and it went back to not idling or having power.

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