Sealant on Float Bowl O-Ring?

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.

The sealant you see is to make the 'oring' stay put. Not to seal it. A few drops in various places is all it needs, if that.

Great1--Thanks for the info.


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