Maintenance & Technical > KX500 Original

Fuel

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teamgreen500:
Your gas is -probably- going out your float-bowl via a bad float level.
Is the gas cap "baffle" in-place? In other words...are you venting gas out the cap via the vent hose?

Manny

mikesmith:
I have gotten 60miles on a stock tank,and not putting around.I had a guy with a KDX with me and 50 to 60 miles was not to hard to get,I also have gotten back to my truck with a teaspoon of gas left.The best thing I did for mileage was to jet my bike as perfect as I could as weather and riding conditions changed,raise my float level a little higher than spec,and I made a "power now" plate for my carb.I still want a bigger tank though.Your bike must be rich,float level off,something because 24miles is way off.Keep you air filter clean also,all these things can add up to better mileage(also can depends on if your in mud,snow or sand).

kiro29:
Thanks for the tip,

I checked over the net and found an article about the float level of the PWK39, in the www.motorcyclecarbs.com that says it should be 16mm hope this is correct.
I also got my reed out and the cilinder intakes(I think) have been machined, can this be one of the reasons for the brutal need of gas that my bike has?
Another thing, if I can't start the bike and continue to kick it, after 5 or 6 times gasoline starts to leak from the cilinder (where the exaust goes into the cilinder), why?
Sorry about my english, and thanks again,

Miguel

mikesmith:
I cant remember what I settled on for float adjustment,but I think it was 18 or 19mm.It was higher than what was listed in the book,but it cleaned up some blubbering I was getting over really nasty terrain and helped my mileage.I cleaned up the porting (cylinder intakes)and it did not hurt my gas mileage.As far as the fuel leaking out..that thing is FLOODING!That makes me wonder if the floats bad,adjusted wrong(to much fuel in the bowl) or the needle/seat is bad or has dirt in it.Are the vent lines clear(not plugged) because I would think youd have fuel comming from them leaking on the ground.Whats your starting procedure?Are you holding the throttle open to much?I dont have mine open the first few trys,then only 1/8 of a turn or a little more and Itll start.Hows it run?Does it load up or blubber?Whats the plug look like?Try your float first and go from there,try one thing at a time if you feel over whelmed.If fuels leaking at the head of the pipe you need new O-rings and high temp silicone on the pipe and a new washer at the cylinder would be a good idea,this wont fix your current problem but will keep you from ruinning the cylinder where the pipe fits in ,stop exauhst drool and youll pick up a little low end.Hope this helps.

teamgreen500:
Mas Problemas, Amigo!

You might need to take a look in your crank-case.

If you've got a flooded crank-case, then you've got ot go in and clean things out.

Good Luck!

Manny

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