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Old 04-26-2013, 12:04 PM
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What is this stuff ?

Took the carb off because of a " no start" condition. Starter was fine but no fuel came out of the float bowl. Upon removing the float bowl, I discover that this crap is inside of it and held the needle valve closed. I cleaned it and am going to reinstall the carb. The question is : What's this stuff from? BTW - the carb is brand new and was only in use about three weeks.
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Old 04-26-2013, 01:34 PM
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Quote:
Originally Posted by Coodeville View Post
Took the carb off because of a " no start" condition. Starter was fine but no fuel came out of the float bowl. Upon removing the float bowl, I discover that this crap is inside of it and held the needle valve closed. I cleaned it and am going to reinstall the carb. The question is : What's this stuff from? BTW - the carb is brand new and was only in use about three weeks.
Can't tell from the picture if this is a chemical deposition of a chemical contaminate in the fuel or whether this is corrosion caused by water or high levels of alcohol in the fuel. My gut says corrosion because it's on the aluminum/potmetal casting but not the brass jets.

Bogie
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Old 04-26-2013, 01:59 PM
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looks like corrosion, but for the very same reason Bogie stated I DON'T think it occured in the carb.

It affected the NEEDLE AND SEAT. which to me says it came from the line and into the carb. Plus the carb is too new to corrode like that- if it was sitting around for a LONG time then yes I would suspect the carb but 3 weeks cant do that to a new carb.

I had a very similar problem a while back, to remedy it I ran the tank near empty with a 50/50 mix of gas and E85 (only a couple gallons of the mix at a time). While it is running through the engine I had to clean the carbs multiple times but its sure as hell a lot easier than cleaning the tank and lines themselves. The idea is to flush them clean.

My approach takes time but it worked. E85 was recommended to me through this forum BTW, one of the many good useful things it has taught me
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