engine running crappy

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BrothersJ

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Just rebuilt the top-end. Now it won't run right. Keeps popping out through the carb. Any insight would help.
 
Timing may be off a little bit. Double check the markings, make sure they are precise.
 
Timing is dead on. Think it is carb related. Gonna tear it down and rebuild it. Any tips on resetting it when putting back together.
 
When you rebuilt the top end did you replace the timing chain as well? If your jettings are stock. Turn the air and fuel screw complacently in and do 2 complete turns out for the base setting. Run it then adjust it to make it run better on idle.
 

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