bijiminy
Active Member
- Joined
- Aug 17, 2020
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- 11
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- 50
Right after I finished mowing a couple of days ago, I filled up my tanks with 93 octane pure gasoline. After that it started bellowing white smoke. Is that a sign of water in the gas or another problem? I emptied out the tank, and refilled it with 87 octane pure gasoline as the requirement is 85 octane, but I haven't been able to test it since I now have to get a new starter. The starter is too weak to turn the engine. The engine appears to still have good compression. This mower is new to me. It has the original Generac 27 hp GTV-760 engine with approximately 570 hours on it. I was worried about the compression as the dealer put 10w30 oil in it and the suggested oil weight is 15w40. I called him after I learned about this, and he assured me that 10w30 was okay. I was worried that I might have scored the the cylinders with thin oil, but as I said, it seems to have good compression. Is there anything else that the smoke could be? This is an air cooled engine, so I don't think it would be cracked cylinder heads. I've already ordered a starter. I also intend to adjust the valves. I don't think the valve covers have been off since new.
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