After removing the head and cleaning the water ports and replacing, my 35 still ran hot so I removed the thermostat with same results.Noticed the radiator was running around 80 degrees cooler with the infared gun so I swapped out the radiator and ran for a good 30 minutes with no boiling. Engine only reached 180 with front of radiator blocked off with cardboard. After removing cardboard the engine cooled to about 165 and radiator read about 40 degrees lower so I"m guessing that if a radiator reads way lower than the engine then its a sign of stopped up flues. Anyone know what the running temp is on the exhaust? Mine read 700?