400thacker
02-04-2011, 07:18 PM
i bought this quad (250X) with the top end off of it and when i put it back together i had very little compression.
i put the top end on and left the cam out so i could see how much compression it had.
I checked the top ring and it had very little gap, looked to be new rings. my next guess was the head and it looks to be in good shape.
I turned the head upside down and put gas on top of the valve and it's been setting for a few hours and hasn't lost very much liquid at all. none of the valves are sticking or appear to be bent. they look seated pretty well
when I kicked it over i could hear a little bit of air coming from somewhere but i couldn't figure out where. seemed to be on the compression stroke.
btw the head gasket is new.
it has compression but quite a bit less than my stock 250x and this one has a 12:1 weisco in it.
anyone have any ideas or things to check besides changing the head or getting another set of rings?
thanks
i put the top end on and left the cam out so i could see how much compression it had.
I checked the top ring and it had very little gap, looked to be new rings. my next guess was the head and it looks to be in good shape.
I turned the head upside down and put gas on top of the valve and it's been setting for a few hours and hasn't lost very much liquid at all. none of the valves are sticking or appear to be bent. they look seated pretty well
when I kicked it over i could hear a little bit of air coming from somewhere but i couldn't figure out where. seemed to be on the compression stroke.
btw the head gasket is new.
it has compression but quite a bit less than my stock 250x and this one has a 12:1 weisco in it.
anyone have any ideas or things to check besides changing the head or getting another set of rings?
thanks