Fuel problem - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 13 Old 07-22-2008, 07:09 AM Thread Starter
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Question Fuel problem

I recently purchased a 2001 a few weeks ago and it started and ran great. Now I can't get it to fire due to lack of fuel. I have a full tank of fuel, but when I remove the hose from the petcock on the tank to the carb, no fuel flows freely with the valve in the "on" position. When I turn the motor over, fuel surges but, not a steady stream as I am used to seeing with other ATVs and/or bikes. What's next, draining the tank and removing the petcock for cleaning?

Any ideas?
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post #2 of 13 Old 07-22-2008, 07:46 AM
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Nothing wrong with that. The petcock is vaccum opporated. Your problem lies Elsewhere.

What exactly does the bike do? Engine turns over but won't crank?

not with choke on or off?
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post #3 of 13 Old 07-22-2008, 10:16 AM Thread Starter
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Bike will turn over, Installed a new plug just be sure. Checked fire at head of plug, seems to be fine. Some one just send a answer back about making sure I have a full charge on the battery or a new battery. I did have it hooked up to the pickup last night with cables, but still had no luck. And to answer you question about the choke, it does seem to matter with it on or off.

Thanks for any advice.
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post #4 of 13 Old 07-22-2008, 12:14 PM Thread Starter
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A little more information

We also tried to push start in with no luck as well.
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post #5 of 13 Old 07-22-2008, 12:55 PM
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Quote:
Originally Posted by JesseA View Post
We also tried to push start in with no luck as well.
Ya got spark you say.

Crack the float drain...gas come out?

Pull the plug and check for compression.

Let us know.................

Don H
Spring Valley AZ
'03 KLR 650/DS sidecar
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post #6 of 13 Old 07-22-2008, 02:30 PM
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ok, so we know we have spark.

That leaves compression (As DonD mentioned.) I would check this next, as well as opening the drain on the carb to make sure fuel is getting to the carb.

If Compression is good, and fuel is getting to the carb then it is time to tear into the carb for a cleaning.

I am assuming your air filter is not completely blocked.

You said it ran great a few weeks ago when you bought it. Was that the last time it ran before it wouldn't start, or were you riding it one day, and the next day it wouldn't start? How long a period of time passed between the last time it ran, and the first time it wouldn't start? Anything possibly odd about how it was running when it did run? Is this your first KLR? is this your first Motorcycle?

Just trying to get as much info as possible.

Steve
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post #7 of 13 Old 07-22-2008, 04:02 PM Thread Starter
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We do have spark. The last time I road it was about three weeks ago and it was fine. When I did try to start it, it ran for about 30 seconds then has not started since. It ran perfect for the first two weeks then I had new tires installed so I was waiting to get the rims and tires back. I work out of town so it took a couple of weeks to get together with the shop to retrieve my tires and get them reinstalled. So it set for two or three weeks during that time.

It has a new K&N installed, perfectly clean at this time. Tried starting fluid a couple of times with no success.

This my first KLR, not my first bike. I normally ride quads in dunes and trails. Currently own a 2006 Raptor 700.
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post #8 of 13 Old 07-22-2008, 05:02 PM
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Check compression and check for fuel in the bowl of the carb and report back.
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post #9 of 13 Old 07-22-2008, 10:59 PM
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Is it posibly a California model? If it is then there is a Black/Red hose going to the fuel tank under the seat. If this hose is dry-rotted, cracked or otherwise, it wil lose vacuum and you will will only get enough gas to run for a few seconds. Trim the hose, reatach it and it should run if this is your problem. Mine did. Dano.
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post #10 of 13 Old 07-23-2008, 07:51 AM Thread Starter
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Okay. I placed it on a charger for about 4 hours lastnight (I know, not a full charge, but I got impatient after a late softball game). It fired right up and ran perfectly, that is until I decide to get it on the highway. I pulled out on the road, when I shifted from second to third, it started starving itself for fuel, so it sounded. I tried choking it with no change. Then it was back to square one. I made it down to the next street at least.

Could it really be as simple as a battery not being fully charged? Does the electrical system have that much drain on it that it will kill the bike if it is not fully charged?

I appreciate everyone's help. It seems as though we are the right track.
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