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► Modify message ( Re: Problem with my 2000 Drifter 800 )

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I've been thinking about this, and it's not an uncommon problem with cars, too. You'll have to do some basic diagnostics to rule out various things. The engine is a single carb, like a harley sportster, so one will effect the whole engine. First thing you need to do is reproduce the symptoms in a place you can check things. The first thing to check is spark. Don't fiddle around taking out a plug from a hot engine...aluminum heads have a tendency to get really mad at you for that.  Connect a plug to a plug lead and hold the body of the plug against the cyl head, and crank the engine. You should get a fat, blue-white spark...if you don't then you know where to begin looking. If the spark is good, then the only other thing that could be an issue would be the fuel system. This engine has a simple carb set up, so anything that needs to be done will be easy. If the spark is good, I would suspect the carb might be over flowing into the intake tract. This would temporarily flood the engine with liquid fuel, but the heat of the heads would evaporate it after a while. This probably wouldn't be a problem with the engine running, although the fuel mileage would suffer, but the time spent during what's called hot soak could really be a problem. I realize the 800 has a vacuum operated fuel valve, but if the float level in the carb were wrong, the fuel would bubble out the main jet until the bowl level was correct, even though the fuel supply from the tank was shut off.

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Topic summary

Posted by Guard

- February 19, 2012, 03:15:50 AM

Engine Cranks very strongly, just as stong as it does when its cold. Once the bike has cooled down it fires right up every time.

Posted by chief

- February 19, 2012, 00:17:36 AM

Does the engine crank strongly but fail to start?

Without further info it could be the battery. If the battery isn't charging properly the bike will behave in a similar way. After it sits for a bit it recharges itself enough to start the bike. I'd test the battery... needs to be load tested as well to rule out the battery being the problem.

Posted by Guard

- February 18, 2012, 19:16:17 PM

I having an issue with my bike and was hoping someone might have an idea whats causing it. The bike starts up and runs fine I can drive it anywhere and it seems to do fine. However after it has warmed up and been ridden 10-15 miles it will not restart for 10-20 mins. Omce it has cooled down it will fire back up and run great. It doesn't quit, just wont restart after turning it off after its been ridden. I was at 1st thinking carbs, then got the idea of coils, not sure and would apprecaiate any imput from the fellow riders here. Love my bike, Its named Ole Yeller.

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