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Old 06-18-2013, 05:09 PM   #81
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3Dog, I once had my local lawn mower shop convert a generator to propane. They knew where to get the kit.

Why don't you unload the Tahatsu and buy a Lehr 9.9? If you just hang a propane carburator on a gasoline engine, you'll lose power. An engine designed to run on propane will put out the rated power.
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Old 06-18-2013, 05:26 PM   #82
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Not concerned about losing power, just want to get away from ethanol. I have a remote steering outboard and don't want to pay @$3k to replace what I have.
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Old 06-18-2013, 11:46 PM   #83
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3dog,
The propane engine runs on a different ignition curve than gas so a conversion lacking the ignition changes would not run properly. But it would run. You could just adjust the timing until you achieved the best results.

HopCar,
For my rubber duckie the very light gas 2 stroke Yamaha works well. I don't think we had alcohol in our gas in Alaska ... haven't had any storage and crud in the carbs but I know we have alcohol here in Wash state so I may be interested in propane in the future. I've seen the propane OBs at Harbor Marine in Everett WA. What I more likely will want propane for is a get home OB.
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Old 06-18-2013, 11:54 PM   #84
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" What I more likely will want propane for is a get home OB."
Eric do you mean to push Willy a few miles? How many horsepower do you think you'd need?
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Old 06-19-2013, 09:29 AM   #85
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Five to ten.
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Old 06-19-2013, 10:58 AM   #86
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Eric, I think a propane outboard would make a good get home engine. It wouldn't get used much so storing gasoline would become an issue but propane doesn't go bad in storage. A 20 pound barbeque tank would run a 10 hp propane powered outboard about 5 hours at WOT. That should get you somewhere.
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