Carb Flooding - 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 08-24-2015, 08:53 AM Thread Starter
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Location: Puyallup, WA
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Carb Flooding

Good morning,

I just purchased an 02' with 33k, it has the 685 kits with valves done. I made the 50 mile trip back to town. Stopped at the bank, went back out and the bike didn't want to start. She finally turned over but was leaking fuel from the grey overflow valve out of the carb.

I've taken the carb about, sprayed it with carb cleaner and reassembled but the result is still the same. Anyone have any ideas before I take it to a shop?

Thanks!
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post #2 of 6 Old 08-24-2015, 10:16 AM
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Chances are, a piece of trash compromises the float valve seating/sealing.

Make sure float valve and its seat are squeaky-clean. Doubt carb cleaner alone will solve the problem; float bowl must be dropped for access to the float valve and seat.
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post #3 of 6 Old 08-24-2015, 10:56 AM Thread Starter
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Quote:
Originally Posted by Damocles View Post
Chances are, a piece of trash compromises the float valve seating/sealing.

Make sure float valve and its seat are squeaky-clean. Doubt carb cleaner alone will solve the problem; float bowl must be dropped for access to the float valve and seat.


I had it all apart except for the main jets. It looked clean to me. Do the floats go bad?
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post #4 of 6 Old 08-24-2015, 11:47 AM
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Quote:
Originally Posted by 02650wip View Post



I had it all apart except for the main jets. It looked clean to me. Do the floats go bad?
Yes, sometimes the floats may be perforated and fill with fuel; consequently the floats sink and the float valve never closes in that configuration, causing the leaking such as you mention.

Also, the tip of the float valve may become hard and brittle; should be "rubbery" for a good seal.
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post #5 of 6 Old 08-24-2015, 05:55 PM Thread Starter
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Got it! I'll be needing a new rear caliper and pads. Any recommendations on a reputable retailer?
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post #6 of 6 Old 08-24-2015, 06:41 PM
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The needle and seat in my 2011 started leaking at about 18,000 miles. I opened the carburetor and cleaned the soft tip of the needle and twirled a Q-tip with valve lapping compound on it to clean/smooth the seat. Works fine now.

Yes, the floats can leak and sink just as it can snow in Houston, Texas in July, but it is not the first thing I would suspect. It would be fairly obvious if you shook the float.
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