Okay, so I'm completely lost. I cleaned up the head with 220 grit sandpaper and put in a new gasket. Fired right up with no squeal. However, I think it is still running too hot. I'm not familiar with how they normally run, but within 5 minutes of running at fast idle, the front grill housing and engine block are too hot to touch. Also, it runs rough, and seems to be missing/hunting when I run it up to speed. Here's the full history of the engine:
Rebuilt 6 months ago (new crank, rod, piston, rings, .20 over, valves lapped in)
New points, and Kirk Point Saver system with Bosch coil
Rebuilt carb (main needle, gaskets, throttle shaft, float needle and bushing)
Plug is 6 months old
Here's what I have checked so far
Remover tins and cleaned cooling fins
New head gasket
Checked valve clearances (.09 intake and .18 exhaust)
Timing (easy with the Point saver, Light comes on exactly at the S mark)
Plug gap (.035)
Took carb apart this morning and cleaned it all out (there was some sediment in the bowl), also cleaned out fuel sediment filter on tank (had some sediment in it)
Set carb for factory settings (2 1/4 on main and 1 3/4 on low speed)
Any ideas on what it could be? I'm about ready to sell the thing. I've put a ton of money into it and there always seems to be something new.
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