Author Topic: KDX80 CARB ISSUES  (Read 2777 times)

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Offline SAINT1000

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KDX80 CARB ISSUES
« on: February 22, 2017, 10:05:01 AM »
I PURCHASED A OLDER KDX 80 FOR MY SON. ITS A 1984. I REBUILT just about everything. new piston, pipe, clutches and steels, re gasketed the whole motor, painted the plastics, new set cover. basicly the whole bike. when i got it togeather, the vent on the carb  keep leaking fuel. i figured it was a float or needle and seat problem but couldnt find replacement parts. i bought a oem brand carb and everything was great for a couple of weeks the the vents started leaking again. i took it apart but couldnt find anything that would cause it to leak. put it back togeather and it still leaked, so i called the company and they sent me another carb. i installed it and that was good for a couple months but now that one is leaking. is there somthing i am missing that could be causing these issues. i had put a in line filter between the tank and carb when i rebuilt the bike. the bowl of the carb looks clean as a whistle. what could be causing these to have a overflow problem?

Offline Foxx4Beaver

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Re: KDX80 CARB ISSUES
« Reply #1 on: February 22, 2017, 10:08:13 AM »
have you verified that the float height is set correctly?
your manual will tell you where it should be set, or if you don't have a manual...you should be able to call your local Kawie dealer and ask them.
Excuse me, ma'am...but you've got extremely nice legs!!!...what time do they open???                                                                                                               https://www.youtube.com/watch?v=n8tCgN3aryQ

Offline SAINT1000

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Re: KDX80 CARB ISSUES
« Reply #2 on: February 22, 2017, 10:22:33 AM »
I have a manual and will check that. Just seems weird the first one was good for a couple weeks and the 2nd for a couple months then they start acting up. Was almost going to look in to a different carb but I wouldn't know what to get or where to start with jetting.

Offline DoldGuy

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Re: KDX80 CARB ISSUES
« Reply #3 on: February 22, 2017, 01:30:30 PM »
Running E10 (Ethanol) Fuel?
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Offline Foxx4Beaver

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Re: KDX80 CARB ISSUES
« Reply #4 on: February 22, 2017, 01:45:53 PM »
I have a manual and will check that. Just seems weird the first one was good for a couple weeks and the 2nd for a couple months then they start acting up. Was almost going to look in to a different carb but I wouldn't know what to get or where to start with jetting.

Running E10 (Ethanol) Fuel?

+1
E10's given a lot of guys trouble over the years....can't say for sure that this is what your issue is SAINT, but it's worth looking into. I run straight race fuel now...because the great state of Massachusetts is one of the few that DON'T sell non ethanol fuel.

I did a short thread on my misfortune with E10 couple years ago.
http://www.kxriders.com/forums/index.php/topic,14782.0.html
Excuse me, ma'am...but you've got extremely nice legs!!!...what time do they open???                                                                                                               https://www.youtube.com/watch?v=n8tCgN3aryQ