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Old 06-06-2013, 08:56 PM
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577-Jersey 577-Jersey is offline
Motorized Bicycle Elite Member
Join Date: Mar 2013
Location: central western nj
Posts: 293
Default Intake port piston location???

Hi guys,,
I have an engine here with low power and it pings a bit when warm,,running 32:1 dino,,I noticed when i took the intake off and turn over the motor,,the top of the piston does not come down low enough for the fuel to get into the chamber,,it comes down to the top of the first ring but that's it,,my question is,, shouldn't it come down a little lower or should I trim the port out with a grinder so the fuel can get into the chamber better,,or are all of them this way???

Thanks Tom

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Ghost pedaling in NJ....
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