Flooding On Xr650l

[lamonster99]

For the last week and a half my 2000 XR650L has been flooding -I think- when warm- and it seems to be getting worse and worse. On warm days it refuses to start after I shut it down. It has to sit 10-20 minutes or so before it will fire. I have tried ignition off- full throttle and 5 sec of turning over- and ignition off and full choke and turn over for 5 sec. Sometimes it works but mostly not. I have done nothing to it to alter anything. Since this started happening I have changed the plug and cleaned air cleaner- just because. The plug looked good and so did the air cleaner. I bought this in June and it didnt do this until recently. It seems to start right after I shut it down- but the longer it sits the grouchier it gets. Other than a K & N filter the bike is bone stock. I am going to do Daves Mods but am waiting for winter. Its a good thing I have a solid battery.

Any Ideas- its a great bike and its startin to piss me off

[XR650L_Dave]

Clear a flooded engine with full throttle, choke off/closed.

After a dump I start my XRL this way with the ignition turned on, it usually starts as soon as I start cranking because the air/fuel mixture works out just right.

Does just cracking the throttle while cranking get it to start easily?

If you are all stock, it is unlikely you are flooded, more likely its just the lean stock jetting.
Is there any alcohol in the gas where you are?

Do you have any gas dripping out of the carb hoses?

It could also be the pickup coil, when they fail they usually work when cold, fail while hot.

Dave

[beechum1]

my bike did the same when i first got it. I would recommend to clean the carbs first thing, and see how that turns out for you. I never really identified my problem, but i suspect that the bike sat for a bit and the floats just were sticking open. Happened a few times, cleaned and didn't happen again.

[lamonster99]

Cracking the throttle does not seem to help, I do suspect the bike is lean from the plug I changed- it was a little concerning to me actually. I dont see any fuel coming from the carb. And I do think they run ethanol here, I am in eastern washington. It just seems to be getting progressivly worse. I can smell fuel when it wont start- thats what led me to believe it was flooded. I guess I should pull the carb and do the mods\

The bike has 7000 miles on it. I have put 3500 on it since June, and this just started a week and half ago

[Pablo83]

Originally Posted by lamonster99

Cracking the throttle does not seem to help, I do suspect the bike is lean from the plug I changed- it was a little concerning to me actually. I dont see any fuel coming from the carb. And I do think they run ethanol here, I am in eastern washington. It just seems to be getting progressivly worse. I can smell fuel when it wont start- thats what led me to believe it was flooded. I guess I should pull the carb and do the mods\

The bike has 7000 miles on it. I have put 3500 on it since June, and this just started a week and half ago

If you can smell fuel it may be something in your ignition system. If it's not making a spark when the engine is hot then it is pushing the unburnt fuel thru the engine.

I'd check to make sure all the bolts and wiring connections in the ignition system are tight. If that doesn't fix it, clean the carb real good. If it's still a problems pull out the voltmeter and start checking the components of the igition system. The shop manual will have intructions on checking the components, or one of us can give them to you.