Maintenance & Technical > KX500 Original

New KX500 owner, Float Question

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Coyote13:
Hello,

I picked up a 1995 500 a couple of days ago that seems to be in good shape. I just ordered a shop manual; in the mean time, if the float was leaking and the petcock was left on, is it probable or even possible for the fuel tank to drain into the cylinder and eventually into the case. I appreciate the replies and look forward to the ongoing discussions here.
I attached some pictures of the bike.
Thank you

kaw rider:
WOW that is a clean 95 you have there. Sounds like you are in need of a new needle and seat.

jonny500:
thats a tidy bike. looks alot newer than 95. now about your float question. if the fuel was left on and your float valve is defective, then yes i suppose that it could fill the crank case with fuel but you would also have fuel leaking out of the carb over flow at quite rate. if not then this could mean that the over flow is blocked. i think your first port of call should be to strip the carb down and inspect and clean every thing. look particularly at the rubber tip on the float/fuel valve and where it seats (just a small spec of dirt will stop it sealing). only adjust the float height as a last resort as it tends not to move on its own, make sure everything else is in order first. hope this is of some help
best regards
john

Coyote13:
Thank you,

I am not sure if that is even happening, I am wondering if that is even possible or would it drain out of the overflow prior to entering the bore?

Coyote13:
Thanks John,

I have only had a chance to ride it around the block a couple of times and I noticed two small drips of fuel coming out of the overflow after I stopped so it seems ok. I am sure it is fine but wanted to check, I will take your advice and clean the carb out regardless. It runs just fine, the previous owner ran sonoco 110 with maxima 729 at 40:1 which I will continue.

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