Last year engine would cut out to 1 cyl sometimes. Put new coils, wires, plugs, condenser and points. Took it out this year was on 2 cyl then cut to 1 again. Noticed lack of water so brought it home change impeller and double checked everything. Plugs and points gapped proper. I know not much water at idle out exhaust so increase rpm no water. Top cyl was the one cutting out sometimes. Temp reading 140 top cyl and 180 bottom cyl which seems too hot. I shut it down. I dont know what to do now.