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Old 11-06-2009, 12:26 AM   #28
mrlmd1
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Join Date: Jan 2008
Location: Crawfordville, Florida
Posts: 2,853
Re: won't start - bad gas?

I'm real happy you got your bike running again, maybe you really did get a load of crap gas, but I just have a question and another comment or two.
Just out of curiosity - did you drain it out through the petcock on prime or did you remove the tank and dump it out from the filler neck? Did the gas smell funny? Usually "bad" gas has a rancid or foul smell to it. And the exhaust didn't smoke or smell funny? And you saw nothing in the gas you drained? No debris or dirt?
You got debris when you drained the carb,

I would be a little hesitant for a while and watchful that you solved your problem and would still carefully check the sidestand cutoff switch and the starter/kill button because you don't want to be riding along 50+ mph and have the engine quit and lock up the rear wheel before you can grab the clutch and prevent a skid.
Start up the bike, have someone hold it upright and jiggle around the sidestand and play with the switch to hit it or try and move it and see if the engine cuts off. Just to be safe.

What bothers me about this is that if the gas was bad, it's bad all the time it's in the tank, not intermittently, and the engine won't run right ALL the time with that gas. It won't run well for a mile or so then suddenly quit without warning, start up again after a few attempts and run fine for another 5 miles and then again suddenly quit like you describe. If the gas was bad it just wouldn't run well from the time you filled it up but it's possible the bike ran for a mile on just what was in the carb until the "bad" gas got in there, but then you went another 5 miles before it quit the second time. If the gas was bad enough to make it quit the first time, it should have stayed like that and not let it run again - the gas didn't get "good" all of a sudden and let you get home.
By draining out the gas you may have dislodged something obstructing your fuel line in the tank. Did you get a look into the tank (with a flashlight) after you drained it, and there's no rust or sediment or water in there?
And when you fill the tank each time, use REGULAR gas, not premium. That's what this engine is designed for and will perform to it's specs on that, being a low compression engine.

It's possible the carb is dirty and intermittently clogs, and you said you drained it "and got a few specks of debris, nothing major". That is major - there shouldn't be anything other than gas in the carb. If one of the jets is clogged with debris, that will shut the engine off real quick. Then llso, like I said, a dose of Berryman's might clean it out and wouldn't hurt either.
Anyway, I hope you solved your problem but be aware that this might not be the end of it.
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