Loss of power and lots of sparks out of my exhaust. What did I break?

[rd1959]

Originally Posted by ChopperCharles

Another update: Exhaust valves have zero play. I can't fit my smallest .0015 (.038mm) feeler gauge in there. Also... access to the exhaust valves SUCKS.

How bad is removing the head? Can it be done with the engine in the frame?

Charles.

Wow! They tightened up quick. I had them set tappy and happy at .08mm. Yea, access sucks. I had a hell of a time trying to get my fat fingers + a feeler gauge in there.