I can't even make fuel run down hill!!!!!!!! - Kawasaki KLR 650 Forum
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post #1 of 16 Old 08-25-2008, 08:54 PM Thread Starter
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Join Date: Aug 2008
Location: Southeastern Illinois
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I can't even make fuel run down hill!!!!!!!!

To start out with, my main jet plugged on me 3 times last week before I got a chance to get an inline filter. Every time I pulled it apart, there was what looked like clear or white plastic sucked up in it.
Friday after work I went and got an inline filter and ever since I installed it, I'm running out of fuel.
This is what I've done since -
I've tried running with gas cap open
Took the vacuum valve out of the pet cock
Shortened the main tube in the tank
Removed & disassembled the carb to check for anything plugged (thought maybe the bowl vent was plugged) did this at work today and put back together and I still can't get fuel to run downhill
Tried another filter
It will put just a little in the filter but not enough to run very long it seems
I replaced the fuel line with new and left out the filter an ran it home (about 12 miles with no real problem but it still feels like it's running out of fuel at times)
Also the exhaust pipe is blue coming out of the head
One thing I didn't check was the float drop, is it possible the float is not dropping the needle far enough to feed the bowl fast enough????
What in the hell am I missing???????
Any ideas would be GREATLY appreciated

Thanks,
Joe
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post #2 of 16 Old 08-25-2008, 09:05 PM Thread Starter
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Forgot to mention it's an 08 & red LOL.
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post #3 of 16 Old 08-25-2008, 09:08 PM
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The big boys strongly recommend not using a paper auto inline filter. Too much flow restriction. They recommend a brass screen filter (I got one at NAPA - which I've not yet installed) made for small engines/cycles. Theory being that auto fuel is pressurized by the fuel pump, pushing it thru the filter, while the fuel on the bike is gravity flow, with no pressure. Makes sense.

I'm thinking that since my petcock inlet screens are in good shape I won't install the inline filter at all.

Fully understand your frustrations - I've got the same kind of thing goin on.
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post #4 of 16 Old 08-25-2008, 09:08 PM
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You've definately checked about everything I could mention. The float has been known to get out of spec. Especially if you have been into the carb, it isn't hard to mess up the float setting. Just out of curiosity, where did you get the inline filter?
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post #5 of 16 Old 08-25-2008, 09:17 PM Thread Starter
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The first one I got from an auto parts store & the second I got from a lawnmower shop....lol
Bigiron may have the right info, as both were paper filters, but with the line unhooked from the carb, the gas would run a FULL stream with ease, but when hooked to the carb, it was like putting you finger over a straw!!!
even with the float bowl empty. Just doesn't make any since to me.
I'm afraid to not run a filter because of the previous probs.
Not sure where the junk was coming from unless it was flaking off from inside the screen in the tank.
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post #6 of 16 Old 08-25-2008, 09:44 PM
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Ok. Sounds like your carb vent tube is plugged. The big clear (on mine) tube on the carb. Might as well do the "T" mod if you've got the tank off.
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post #7 of 16 Old 08-25-2008, 09:51 PM Thread Starter
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Thanks for the reply, but that was on of the things I checked. It's clean all the way into the bowl. Had everything apart, I'm thinking maybe you are right on the filter thing, I was following a semi home and thought it was surging, but now the more I think about it, it may have just been wind from the big rig making it feel like it was surging.
Oh yeah, and by the way, mine is ran up under the seat and lays along the frame instead of hanging down. Don't know if that's new for 08 or if the previous owner did this. Looks factory though.
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post #8 of 16 Old 08-25-2008, 09:57 PM
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Definately go to the Dealer or any motorcycle shop and get the correct in line filter. Should be clear and the inside is gold colored. I think Big Iron hit the head on the nail, the paper element maybe holding back your fuel flow. I have not had any issues yet with that type of filter. Have run it since I bought the bike new. I change them out about every six months. Cheap insurance.
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post #9 of 16 Old 08-25-2008, 10:02 PM Thread Starter
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I'm definitely going to try one. Just hope I got all the junk out of there so I don't plug the jet again before I get one. I don't have a bike shop within 30 miles of me in any direction from work. I'll try and get to napa tomorrow from work and see if they have anything. If not, I'll have to wait till this weekend I'm afraid.
Thanks guys,
Joe
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post #10 of 16 Old 08-25-2008, 10:12 PM Thread Starter
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Thanks bigmac, but it's as clean as a whistle. Brand new looking actually. And the screens are clean also. I'm wondering if when the screens were put on the brass tubes, if part of the plastic kinda shaved off while sliding them on. That's what the junk in the main jet looked like, each time
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