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120cc port timing questions

Posted: Wed Aug 10, 2016 9:38 pm
by 93notch408
Hi i have a 120cc stroker af16 elite im putting togeatjer and have a question about port timing it has a 56.6 stroke crank and a 54mm bore from autotech on ebay...i was wondering at b0ttom dead center i got all the ports to clear the piston but the boost port its still slightly below the crown of the piston would this be ok? My pip and head gasket should be here in a few days so i can donthe solder test for thr squash but right now im trying to figure out the port timing thank you.

Re: 120cc port timing questions

Posted: Thu Aug 11, 2016 3:42 pm
by 1man8scoots
Send me a pic of how far it's sitting on the fb messenger terd machine

Re: 120cc port timing questions

Posted: Wed Aug 17, 2016 12:56 am
by Peteyparado
I use to run that same bore with same size crank Just different brand.. But I raised the cylinder 1.80mm fully ported that motor ran 94mph.. That POP/prodigy bores are killer an last forever had mines just about 7 years on same crank an seals..

Re: 120cc port timing questions

Posted: Wed Aug 17, 2016 5:38 am
by Ultraliner
94mph?! Dude i'm surprised your seat is big enough for both you and your balls!!

Re: 120cc port timing questions

Posted: Thu Aug 18, 2016 12:32 am
by Peteyparado
Was not me on scoot a friend.I'm * bricks at 87mph my max speed on my scoot

Re: 120cc port timing questions

Posted: Fri Aug 19, 2016 5:48 pm
by 93notch408
So i got my pipe i got it spaced out and i still blow headgaskets its like ripping it when it blows