TRX 90 weeping fuel carberator overflow tube

563 Views 2 Replies 2 Participants Last post by FirstTrax, Apr 23, 2017

FirstTrax

Discussion Starter · Apr 22, 2017

Hello all new user here.

I recently acquired a 1999 TRX90 which I performed all the routine maintenance on

I noticed that the carburetor overflow tube looks wet at the outlet but gas does not really run out. I removed the float and replaced the needle valve with a new one. But it still shows wetness at the end of the tube. This happens when running and when off for a while. My next step I think would be to replace the float but I was wondering if this small amount of fuel condensing at the end of the tube is normal? The tube is fed from inside the carb bowl and I can see how some vapors could escape and condense at the end of the tube. Any insight on this would be greatly appreciated as the kid is eager to go trail riding!!

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b52bombardier1

· #2 · Apr 23, 2017

The float valve needle seat could be corroded. Though there's disagreement around here about the efficacy of polishing the seat with a Q-tip and some rubbing compound. I'm indifferent about apathy on this subject either way but if you are going to buy another carb to solve the problem, what do you have to lose?

Your float could also be a leaker and / or the brass tube sticking up from the floor of the float bowl could have a crack in it.

Rick

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