Update Honda 300 Restore
So I figured out the valve adjustment process. For the rookies like myself, there or 4 strokes (i.e. 4 stroke engine) so you may not be on the right stroke and top in with the tick marks lined up. Once i adjusted on the top end stroke, she fired up before i could let the starter button go.
More on what I've done. I rebuilt the carb using a moose carb kit, but had to make small adjustments to get it it running right. I think there jets dont match the Honda oem spec. But it was not hard to get it running right.
For the plastic work I used 2000 grit sand paper and steel wool. The plastic was really scratched up. Once i had all the scratches smooth and clean, I put about 5-6 coats for Holloway Quick Shine Floor finish. See the pic of back fenders. You can compare the before and after use of Quick Shine. We'll see how long it last. Not sure.