No Fuel - 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 6 Old 01-31-2010, 09:12 AM Thread Starter
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Thumbs down No Fuel

1999 KLR 650 12,500 miles, after setting for more the 45 minutes the bike must be primed with gas to start, Before that time it starts every time right away. Temperature is 42--55 degrees, the chock cable moves (activats) but is not enough fuel to start it, any help will be appreciated thank you...
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post #2 of 6 Old 01-31-2010, 09:21 AM
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On the back of the petcock is a vacuum line. It uses the the vacuum to open the diaphram to allow fuel to flow from the tank to the carb. Vacuum operated fuel shut-off. Check to see that it's working properly.

the other thing it could be is a dirty fuel circut. That will need to have the carb pulled to have cleaned.
Maybe try some seafoam in the tank first. It may clear it out.

Does it run properly after it's started?.. no bucking or sputtering.. smooth Idle and acceleration?

- Joe

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post #3 of 6 Old 01-31-2010, 09:51 AM Thread Starter
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Yes ,it runs fine after starting, good responce, smooth, no problems at all.thanks ,I will look at that line on the petcock to eliminate that possibility, thanks again ,Scott
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post #4 of 6 Old 01-31-2010, 10:22 AM
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The idle enrichment circuit (choke) may be faulty and not giving you a rich enough starting mixture. That will probably be curable with Seafoam - a good call.

If it's not that, then there may be some crappage elsewhere in the carb, and probably curable with Seafoam.However, after 10 years, you might want to consider a carb tear-down and rebuild. A thousand miles a year means that bike has been sitting quite a bit, probably with gas in the take and slowly evaporating from the carb.

You ought to try draining the bowl before your next "hard starting" opportunity. If there isn't any fuel in the bowl then there may really be a petcock issue where the vacuum whizinnards aren't fully working, but working well enough to keep the bike running once started.

If you do find an issue with the petcock you can replace it with a stock unit ($$$), rebuild it with stock stuff ($$$), replace it with a Raptor petcock (search for vatrader mod) ($$), or make your own gasket and blanking plate to eliminate the vacuum operation ($).

Tom

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post #5 of 6 Old 02-01-2010, 08:59 AM Thread Starter
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Ok, I have decided after everyone,s suggestions that the is gunk, crap, etc, in the carb. I will try the Seafoam today , I do know that it works wonders on boat motors ,and such, and , yes the bike looks like it was not very well cared for, thanks again for all the help,, Scott
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post #6 of 6 Old 02-01-2010, 06:23 PM Thread Starter
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Update ,, I put in the seafoam, went for a little ride, it won't start, choked it, started once, next time no start, shot a little fuel in the breather, nothing,, I hooked up batter cables from a 12 volt battery, it fired right up instantly ,shut it off,and started in again,no problem . Pulled the jumper cables,, and it would not start,, it took on half hour, and my battery tender showed it had an 85% charge,, but no damn start ??????
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