low rpms

[jws04061947]

i recently purchased a G3 barge with a 40hp 2stroke. It did not seem to get very high rpms. The auto oil injection had been disconnected and i am mixing oil in gas. Felt the engine block after running for a while it seemed warmer than normal. Will the engin run ok if i remove the thermostat. I will not be running it in the winter.

[robert graham]

Best not to remove or operate motor without thermostat, since it is a key element in your motor's cooling system. Maybe inspect/replace water pump, thermostat and pressure control valve to ensure cooling system if fresh and operating correctly. Good Luck!

[bumperfood]

You might not be getting the rpm you expect because you have a prop with too much pitch. It may be that the engine is powering out because of the load you are asking it to push. I would suggest you: 1) use an infrared temperature gun to get accurate temperatures on various parts of your block, 2) try a prop with less pitch,3) service your cooling system as Robert Graham suggests.