been gettin better at wheelies lately
so ive noticed that if i go for any distance 100 ft. or
more my airbox fills with fuel alot of it to
sputerssomething awful when trying to walk it
ques is tis normal?
can i correct it?

 

normal

 

id expect some fuel to be normal
but im talking very excessive
really cant ride wheelie for any length of time
definately didnt have this much on my warrior

 

Check the float level using a piece of clear tubing. It takes about 2 minutes to check but a lot longer to correct if it's off.

 

how exactly do i do this
thanks as usual

 

This is the best way.

The best thing to do is check it before you take it apart, with a piece of clear tubing. You can get the tubing at a hardware store for 20 cents, 1/8" clear tubing.

Thu September 05, 2002 3:11 AM



The quick & easy way to check float levels is to use a clear tube that fits the dump hole on the bottom of the carbs. You'll need at least one foot of tubing. Don't worry about an exact fit, the tubing can be a little bigger which will cause some of the gas to leak out but gravity is forgiving and is constant! You can get the tubing from your Yamaha dealer for a few bucks. Remove the stock dump hole tubing, put the new tubing on there & then bend up the other end and run it along side of the carb with the open end facing up. Then open the drain screw next to where the tube is connected & the level of gas in the tube should fill up & be level with or slightly above the bottom/top half of the carb's mating surface. If not, you'll need to adjust the float levels. A sign that the float levels are too high is if the stock drain tubes leak gas while your riding, you'll smell it for sure.
I just pop the carbs on the boots and set the tank on the frame and hook up the hose to check it again, you may have to take it back off once or twice to get it perfect. I also measure the amount that it is off and then take it apart, measure the float height and then bend the tab enough to raise or lower the float the amount that it was off. If that makes any sense.

 

ok i did test, fuel came way above mating line
made adjust it came down a little but not as much as i think is right.
did a search on this subject your name comes up alot sixsixT
anyway got it as low as i can will see in morning if it helped

 

Hey I'm having the exact same problem on a new KFX400.
Am going to adjust float-level too, will let u know what I find.

 

it could be a sticky or clogged needle valve also (the thing the float opens)

 

Took carb apart. Manual says float hight should be 13mm, mine was about 16mm (or over). Adjusted it to 12mm, now it doesn't pour out anymore but still drips. I'm going to adjust it some more and see what I find out.