Carb question

[BamBam]

First of all, the main jet comes on at 1/4 throttle...or at least starts to come on. 2nd, the float shouldn't be used to lean or richen the bike. You should only mess with the jets. The float should be set to come on when the bowl is out of fuel and turn off when it's full. It is true that if the floats are stuck or not adjusted right, the bike will run lean. So make sure they move freely and the tang is bent right.

The choke opens up another path for more fuel to get it. So your main jet is probably too small. First, check you're air filter to make sure it's clean. Then warm the bike up, get on it and do a third gear throttle chop...go full throttle, pull in the clutch, let off the gas and turn off the bike all at once. Look at the plug. If it's REALLY WHITE, you're too lean. If it's Really WET, you're too rich. It should be a nice cocoa brown to greyish brown. Also, another thing that can cause a bike to run lean is a blockage in the fuel line or fuel petcock. Check that fuel flows freely there.

[250rcrzy]

I have done all of that except check the plug. The fuel is flowing good. On this particular bike there is no tang to adjust. the float is 100% plastic. The air cleaner is not dirty it is brand new. I know that there is no blockages in any of the jets they are all brand new stock jets. I am lost dont know were else to look.

[BamBam]

is it running hot?

[250rcrzy]

No I cant get it to run top end first thing when I start it

[BamBam]

No I cant get it to run top end first thing when I start it

but does it run top end after ir warms up?

[250rcrzy]

No

[tony_250r]

Sub Quote By: 250rcrzy
The only way I can get it to run on the top is by having the choke all the way on.

This is a good sign that you need to run a larger main jet, try one size up.

Yup, because, in a 4 stroke running rich will actually make your bike run really hot. Can even make the pipe run red.