Roger Sisler wrote:

>>Well, i just replaced the o2 sensor and the problems are the same.<<

>>snip<<

I have not been following this thread, Roger, but I was wondering if you have checked the small o-rings on the fuel
injectors that you removed to do the head gasket job.  If you replaced them, then that is probably not the problem.
However, those things can develop small cracks and possibly allowing air to enter the system.

Good luck,

Warren Lail
88 Westy "Billy Bones"