To all

2006 KLX250s

I have the carb ready to go but I have a question on the float Bowl O-ring. I noticed a sealant “small amount” surrounding the O-ring. The sealant was applied in the valley then the O-ring was put on top. No sealant is on the top of the O-ring itself. I am buying a new O-ring and wonder what this sealant is? Is it necessary? The sealant must be fuel proof “Hylomar” or similar. Curious, any comments.

thanks

Stashu

 

Why are you getting a new o ring? Ive had my bowl off a handful of times and never had an issue.

 

No sealent on mine, reused it and it was fine.

 

I just worked on a 39 pwk, 38pwk airstryer, 36 pj oval, 35 fcr keihin no sealant on any of them

 

Is that English?

 

None on my '06.

 

My 6r had some sealant on the bowl o-rings, my KLX didn't. No issues with either and i've taken the carb apart on the 6 more times than i can count.

 

Thanks for all the replies. I though it was some sediment in the bowl O-ring area. When I took out the O-ring I noticed the sealant. This is why I am getting a new O-ring. It has come to my understanding that a small amount is used to hold the O-Ring in place not to seal, I think this make sense.

Thanks!

Stashu

 

I have seen that light brown color sealant holding the O-ring into the bowl on a few bikes. They must assemble them upside down on the line and glueing the O-ring in is a simple way of assuring a good seal and that the O-ring isn't twisted or torn by the carb builders.

If rebuilding or replacing the O-ring for some reason I would not worryabout regluing. A little hylomar wouldn't hurt if you find that the O-ring won't stay put. Amazingly, this seal never seems to leak despite being a large seal area, 4 small screws and thin gas on one side.