Gas leaking at air screw question

[Durt Cycler]

I've noticed this alot with other bikes and also mine and past bike I have owned that after riding there is a gas/dust buildup right in the air screw area but not a leak where it is dripping all over just a small dust/gas puddle. Is this normal?

 

[bclapham]

is the o-ring damaged? or is the airscrew backed out too far?

 

[Durt Cycler]

Well the screw is set at stock position so maybe I'll have to check the air screw itself....

 

[Jaybird]

That is only a normal situation on quads.

 

[Durt Cycler]

Odd cause I've noticed it on dirtbikes and even my old CR125.

 

[dell30rb]

it happens on the ct70

 

[Jaybird]

Yes, Durt. But this inquiry is about the carb on your quad, yes?

 

[Durt Cycler]

A carb in general Jaybird, it has done this on my dirtbikes and still does it on the LT but I wasn't asking a question about a quad, ok?

 

[Stew312]

when you first kick start your bike, there is a small amount of compression coming back through the reed valve (it doesn't close all the way, which is normal) which pushes gas back towards the airbox. This gas sometimes builds up and leaks out the seal (airbox connector to carb), leaking onto the outside of the carb which is usually directly where the air screw sits. It is nothing to worry about.

 

[IrishEKU]

Stew312,
Is spot on here. On my antique the flange is a little stiff from age and I expect to see some "cake" on my carb. This winter the "Zinger" gets all new plastic and lines. Another thing, I have noticed sometimes when I go down(Far and few between thank God) that if I got off gripping the throttle that the oferflow will dump a generious ammount down the side of the carb(I did mention the bit about new lines right?.....Darn Alzheimers!)

 

[CanadianRidr]

See my post further down in this forum called Leaky Carb, I have pics and I guess I worry too much LOL!