View Single Post
Old 06-06-2013, 09:10 PM
577-Jersey's Avatar
577-Jersey 577-Jersey is offline
Motorized Bicycle Elite Member
Join Date: Mar 2013
Location: central western nj
Posts: 293
Default Re: Intake port piston location???

Originally Posted by maniac57 View Post
Be VERY careful changing the height of the ports, this controls timing on these engines and can lead to ruined motors. Most people simply grind a small "ramp" in the piston crown to improve flow. MUCH safer. I would counsel against messing with the port size unless you know exactly what you are doing. If you try the ramp. don't grind too far down into the ring lands. Leave a bit of untouched aluminum above the ring groove for strength.
Search porting and high-performance engine mods. I've seen a thread here on this mod somewhere...
I may try that also!!

Thanks Maniac!
Ghost pedaling in NJ....
Reply With Quote