Keihin jet block O-Ring replacement

Here it is, the O-Ring Keihin says not to touch. It's just an O-Ring, be sure to get the one for your carb there are two main ones.

[peterchurch]

Thanks Bud. Solved my son's Ktm125 rich running problem.

[mrbrown]

Note to self: That is a motorcycle carb, not a mower or generator.
(these things matter)

[niconine]

Cool bud. I think I'm sitting with the same problem on my keihin 38mm on a 250

[freetaylor]

Yea buddy! Mine was exactly the same way, I got a kit off Amazon that had that o ring in it...

[oddh]

i replaced this o ring on a 98 kdx200 cuz it was spewing black tar out the back, i cleaned my brand new gnarly desert pipe and repacked the turbine core, it runs fine, but smokes like crazy, and still spewing, the o ring is from china and the fit was ok, so im gonna check the emulsion tube for that ovaling and if thats not the fix i might try an electron, thanks for the vid, itll help a bunch of riders fix thier carb

[marioguzman]

I just ordered mine from ebay, hope it works.

[tastypotato]

my kx100 dies out when i compress the forks back and fourth while it idles, so when i go over bumps it just wants to die but i have to keep the throttle almost halfway turned so it won’t die, and same with going down hills it tries to die. And when it idles while not moving i blip the throttle and when it goes back down it idles higher then it did before. We messed with the carb float level and max drop stop and it helped a little but never solved the problem. I went back and fourth with it many times but didn’t fix it. Never heard of the jet block gasket so i’m gonna see if i can take the apart and look at it, any ideas?

[bohjrxs]

Did it fix the leak? I’m suspecting my PWK 28 is leaking fuel to the motor when i leave the petcock on overnight

[dj]

Is jet block from china keihin is a bolt on replacement to genuine keihin?