2 questions about a 1983 YTM 200 chain drive??

[Keepah Rolln]

Hi I purchased 2 1983 ytm's for 50$ One runs great and just using the other for parts. First question I have is I painted the engine top end(fin area with rustoleum 500 degree engine paint and just wondering if this part of the motor gets more than 500 degrees? My other question is on the plastic side cover that says yamaha there three screw to take it off and they are stripped. Any good tips to get them out??Thanks

[just ben]

under normal conditions The engine will never get any where near 500 degrees. If the screws are not completely stripped use a #3 Phillips screwdriver applying just enough torque so the screw driver doesn't spin smack it with a hammer. that will usually get them out. If they are completly stripped drill in the center of the screw with a 1/4" drill until the head comes off. after they are all drilled pull the plastic cover off and remove the rest of the screw with vice grips. Why are you trying to remove that cover? There is nothing under it, It's just there for looks