Re: 954 blew spark plug out of head
Maybe a bad valve guide? Maybe that cylinder hasn't been firing? Maybe a leaking head gasket?
if it were my bike, I would pull the cylinder head off, disassemble it and have it rebuilt or reconditioned. Also Check the head matting surface for flatness.
Maybe the piston rings are bad? Did you do a cylinder leak down test?
When you do get to installing the new spark plugs use a little bit of anti-seaze compound on the threads. helicoil the spark plug hole with the head off the engine.
I'm not a super pro at engines, but I will say pull the head off and fix it. Change the piston rings and have the cylinders honed if you can. If you get it that far tore down then replace the bearings too.
Last edited by Fastrr; 12-29-2006 at 11:25 PM.