Go kart 5hp briggs rebuild help

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solomon

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OK i will use the bolt on exhaust. the fire slot after it was done and installed made my motor have a much higher idol and the engine reved higher faster. It made it run REAL lean so i adjusted it to barelt lean and it still revs great and jumps to speed good. And now Carbon never builds up on my valves. What pipes did u cut?
 

freakboy

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the origional pipes for my exhaust had little peices that go insided the block but dont thread on i just cut them off.
 

solomon

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on my main engine i had a 3/4 pipe coming out to two mufflers then over time it snapped off and the threads are now stuck in the motor so i made a custom bolt on exhaust so i guess i have a partial loss of power with those threads in my exhaust huh?
 
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