I have a 79 xl125 my problem is there is no oil coming up on cylinder head i already cleaned all the oil passages,pump and oil filter rotor still no oil coming up on the head.. when i open the oil cap screw behind the kickstart while engine is running there's a lot of air psi and oil coming out
From: USA
Registered:12/29/2008
Time spent: 1508 hours
Re:No oil coming up on cylinder head need help
(Date Posted:08/10/2009 12:25:44)
sounds like a bad seal letting oil bleed out and suck in air. pull the oil pump off. and replace the o-rings. also double check the little oil passages they get clogged easy. use a piece of wire to make sure all the gunk is out of them. and use a good solvant to clean it up.
I had this same problem on a XR200 once. turned out to be alittle bit of gasket got into the oil passage.