need help engine backfires

C

carless

Guest
anyone know why my engine backfires every other strike, I just installed a new bottom end on my old top end, motor runs but backfires constantly, also bottom end came with needle bearing attached to engine but did not know where part was to go.
 
L

Large Filipino

Guest
Assuming this is a Happy Time somehow your timing is off. Shoot. I dunno much more here.
 
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