Exhauast port

GoldenMotor.com

gra1972

New Member
Jun 21, 2011
17
0
0
SYDNEY
ok guy ive just blown the exhaust gasket on the 66cc, last night when i was looking on here i seen a pic of the exhaust port and when the piston was top dead center you could look through the port and see the bottom of the piston , well just took the exhaust of to check mine and when the piston is top dead center the whole port is covered by the piston , on the bottom stoke you can see the top of the piston is this right ? the bike runs fine but could go alot better
 

Gary Harris

New Member
Jul 31, 2011
86
0
0
Houston
ok guy ive just blown the exhaust gasket on the 66cc, last night when i was looking on here i seen a pic of the exhaust port and when the piston was top dead center you could look through the port and see the bottom of the piston , well just took the exhaust of to check mine and when the piston is top dead center the whole port is covered by the piston , on the bottom stoke you can see the top of the piston is this right ? the bike runs fine but could go alot better
I'm confused.
 
Last edited:

dmb

Active Member
Dec 4, 2010
1,354
3
36
lakewood ca
valve overlap on a twostroke? [works on fourstrokes] on a second thought maybe its a chineeze egr? the new epa motors..