Carb issues... - 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 06-05-2017, 11:10 AM Thread Starter
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Join Date: May 2017
Location: Saratoga, NY
Posts: 17
Carb issues...

Hi everyone,

I'm hoping to get some help here. I've been riding and wrenching bikes/sleds, you name it for 20+ years but am new to the KLR. I've got a 1988 stock and just went through the engine. I'm having trouble getting it to fire now. The vent line on the top of the carb that goes back to the vacuum port on the petcock has fuel in it when cranking. Does this mean the diaphragms in the carb are bad and should be rebuilt as well or do I have the hose routing wrong? top front port vacuum to the petcock and bottom right port fuel inlet to main line petcock? Either way it pops but won't fire and its getting frustrating. Thanks ahead of time.

Mike
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post #2 of 6 Old 06-05-2017, 12:52 PM
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You may be on to something!

My suggestion: Try some "mainline" fueling to your carb, as in, funnel and hose (vs. connection to tank via petcock). You will eliminate tank/petcock as a problem area, insuring wholesome fuel delivery to the carburetor during testing by this procedure.
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post #3 of 6 Old 06-05-2017, 02:15 PM
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Join Date: Mar 2017
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Help us out here!
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post #4 of 6 Old 06-05-2017, 04:11 PM Thread Starter
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Join Date: May 2017
Location: Saratoga, NY
Posts: 17
I didn't really think pictures were necessary as there aren't many variations that can happen with the fuel/vacuum hose connections. If they would help the situation I will try and get out there today when the rain stops, seems to do nothing but rain here in NY these days.

Thanks for the suggestion for direct flow, I'll give that a shot tomorrow and see if it helps, if not I'm just going to pop the carb off and tear it apart. Wouldn't hurt to clean it out and set it up anyhow.

Mike
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post #5 of 6 Old 06-05-2017, 05:58 PM
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Join Date: Mar 2017
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Just a thought. Is it possible that the lines at the Fuel Petcock are switched? That is one scenario that might explain your symptoms.
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post #6 of 6 Old 06-05-2017, 07:13 PM Thread Starter
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Join Date: May 2017
Location: Saratoga, NY
Posts: 17
So I was trying to get some pictures posted but couldn't since I don't have the 15 posts as of yet. I'll just try and slam a few more posts so I can get them up to see. thanks again.

Mike
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