Tach acted up, then bike died

[arthurdent510]

Ok, pulled the drain plugs off, looks like both carbs had plenty of fuel in them.  Borrowed a spark tester from a buddy of mine, both front and back are giving good spark.  So I pulled the spark plugs... front plug looked fine.  Pulled the back plug and it was full of oil.....  Do I have some bad rings, bad head gasket, or something of the sort?

[akvision]

Does not sound good.   Sorry to hear.
Winter is here and the V Grems didn't want you to get bored??
:-\

[arthurdent510]

Bah, winter is the best time to ride in az!  Was looking forward to it...  guess I know what I'm going to be doing next weekend...  Rick and I just replaced the head gasket on both cylinders around the beginning of the year too.   :-\

[arthurdent510]

Ok, did a compression test this evening, and the rear cylinder came in at about 120psi.  So it looks like the head gasket is still well.  Next culprit would be the valve seals?

[jasonm.]

when you changed the head gaskets. Did you change the associated O-Rings that reside with them on the studs???  My tach always has done a 5-6k wave from time to time. I was sayinig before...my tach went dead and then ran on one cylinder. Replace the ignitor in 2 minutes and fixed. Done 150-200 miles since and no more badness.