klr wont start - Kawasaki KLR 650 Forum
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post #1 of 17 Old 02-27-2015, 07:27 AM Thread Starter
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klr wont start

hi all. my 2008 klr will not start when i push the starter. it roll starts, but thats it. the starter motor turns when i push the starter but the engine doesnt 'take'. any ideas where to start checking?
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post #2 of 17 Old 02-27-2015, 08:47 AM
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I have two thoughts. First is the battery fully charged and second was the carb drained before putting the bike away for the winter.
If the battery is not fully charged in may let the starter turn but not have enough power to engage the solenoid. If the carb was not drained you may have plugged on of the jets.

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post #3 of 17 Old 02-27-2015, 09:54 AM
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Quote:
Originally Posted by iride4u View Post
If the battery is not fully charged in may let the starter turn but not have enough power to engage the solenoid. If the carb was not drained you may have plugged on of the jets.
Don't think the symptom described leads to a low battery.

KLR650s have no "solenoid," in the context of linking the starter motor to the crankshaft. Instead, a "one-way" STARTER CLUTCH mechanically connects the starter motor to the rotor when the starter motor rotates.

After the engine starts, the starter clutch "free-wheels."

If the starter motor spins, but the engine does not turn over, a defective starter clutch appears to be the problem, to me.

My perceptions only; corrections and clarifications welcomed.

BTW; looks like the rotor must be pulled to service the starter clutch, if necessary.
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post #4 of 17 Old 02-27-2015, 01:00 PM
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Thanks for correcting me. It sounds like a one-way clutch that has gone bad. On other types of equipment I have had some luck cleaning these, but many times it is a wear problem.

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post #5 of 17 Old 02-27-2015, 01:40 PM
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I thought that was the coolest setup when I went in there to replace the doo.
First time I never saw a plunger gear. It appears to just "coast" on a cushion
of oil (sleeve bearing) when not being pushed by the starter. Looks easy enough
to work on.

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post #6 of 17 Old 02-27-2015, 10:19 PM
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Not enough info. What does "the starter motor turns when i push the starter but the engine doesn't 'take'" mean?
Does it mean the starter turns the engine, but the engine DOESN'T START?
Or does it mean the starter turns, but the engine DOESN'T TURN?

If the engine is turning , but not starting, test the battery voltage and check the battery connections.
If the voltage is good, a quick test would be to jump the KLR battery to a car/truck battery. If that makes it start , it is time to load test the battery.

Last edited by GoMotor; 02-27-2015 at 10:27 PM.
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post #7 of 17 Old 02-28-2015, 03:37 AM Thread Starter
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GoMotor, I mean the starter motor is turning and it is turning the engine but the engine is not starting. The battery is new and I have recently recharged it after running it down while trying to start the bike.

iride4u, you are correct in assuming I had not drained the carb after using not using the bike for a period of a few months. What happens to the fuel or the carb when fuel just sits there?
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post #8 of 17 Old 02-28-2015, 06:27 AM
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I think that it coagulates and looses some of its combustibility.
My dealer who also rides a KLR. Told me to drain the carb bowl any time that you are not going to ride for a while. The easiest way it to turn off the petcock a few blocks from home and ride the rest of the way.
I did not listen to Bruce and had hard starting and poor drive ability problems. From then on I have drained the bowl and the bike starts up and runs fine.

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post #9 of 17 Old 02-28-2015, 07:57 AM
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Quote:
Originally Posted by darrent View Post
hi all. my 2008 klr will not start when i push the starter. it roll starts, but thats it. the starter motor turns when i push the starter but the engine doesnt 'take'. any ideas where to start checking?
I somehow completely misunderstood this post.

If your bike "push starts," hard to diagnose why it will not "electric start."

Otherwise, sometimes, STARTING FLUID is your friend (have fire extinguisher handy). As is fuel system anti-freeze (e.g., "HEET"), countermeasure for moisture accumulating in the bottom of the float bowl/fuel tank. As is, even Sea Foam. If, "better living through chemistry" isn't the answer, there's always the: Remove, disassemble, clean and adjust carburetor approach.

Finally, engine compression, spark, and a combustible mixture remain essentials.
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post #10 of 17 Old 02-28-2015, 09:02 AM
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Lol, I blame ethanol!

Seriously though, I have a small snowblower that sometimes gets contankerous if I forget to drain the fuel in the spring when I try to start it in the fall. So far simply draining the float bowl before starting has got it going, but I suspect I will be going in to clean jets soon.

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