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39mm PWK issue

Posted: May 13th, 2010, 7:24 am
by eyesky2002
Been having an issue with my carb, since I cleaned it :oops: When ever my bike is running I have fuel coming out my over flow; not a lot, but a steady drip. When it os not running I have to lean it over, before anything comes out. I have played with the float level, which may be right or may be wrong as carbs are my weak point :?

Any ideas, tips or pictorials on float adjustment?

Re: 39mm PWK issue

Posted: May 13th, 2010, 7:34 am
by craigf40
eyesky2002 wrote:Been having an issue with my carb, since I cleaned it :oops: When ever my bike is running I have fuel coming out my over flow; not a lot, but a steady drip. When it os not running I have to lean it over, before anything comes out. I have played with the float level, which may be right or may be wrong as carbs are my weak point :?

Any ideas, tips or pictorials on float adjustment?
you need a new needle and seat

Re: 39mm PWK issue

Posted: May 13th, 2010, 8:10 am
by eyesky2002
craigf40 wrote:
eyesky2002 wrote:Been having an issue with my carb, since I cleaned it :oops: When ever my bike is running I have fuel coming out my over flow; not a lot, but a steady drip. When it os not running I have to lean it over, before anything comes out. I have played with the float level, which may be right or may be wrong as carbs are my weak point :?

Any ideas, tips or pictorials on float adjustment?
you need a new needle and seat
I checked it and the rubber on the needle looks great and the metal has no wear like shown below.

Image

Posted: May 13th, 2010, 8:16 am
by dubious01
how is the spring?
It definately is a float/ float needle issue, keep looking there.
I replace mine every few years as the rubber dries out, even if it looks good it can act up.

Does your engine vibrate excessively? headstays are tight?
sounds like needle is bouncing when its running, but works fine when off.

Are your reeds in good shape?
a broken reed can allow the primary compression to wreak havoc on your carb too, as the flow is reverting with each compression stroke.