carb fuel leak

[sk8rat]

on my last ride my bike started dumping out gas when I would stop the bike. replaced the dried out gaskets in the petcock and that solved one leak but it continued overflow if the petcock was on. the fuel dumps out from around the needle

the floats were too low so I set them to factory spec (18-20mm) and still continued to leak so I set them higher and it still leaks.

for what its worth, the bike started leaking fuel after a friend of mine tried to ride it and he flipped it although I think that may just be a coincidence.  

the needle seat looks to be fine and the needle itself doesnt really show any signs of wear. the seat is cast into the carb so I dont want to waste money on parts (that I already have but can still return) if the whole carb body needs to be replaced.

Edited May 19, 2017 by sk8rat

[TE300]

have you tried adjusting the carb float level? 

[sk8rat]

5 minutes ago, TimothyKRichardson said:

have you tried adjusting the carb float level? 

yes. they were low at first so I set them to spec and it still leaked so I set them higher and it didnt change anything.

[FORMA MOTO]

Your float needle is sticking (polish the needle body and cavity) or the seat is pitted ( replace it) or the o-ring under the seat has deteriorated (replace it)

[sk8rat]

solved. the needle tip was just dry rotted. still looked brand new just hard as a rock.

[ossagp]

yep,  the spring gets a bit soft and the rubber/viton gets old too.  no telling what the various fuel detergents do to them either.  

[andyt1]

Wonder if anyone can help me a purchased a crf50 of a guy had been lying for a year had to replace full electrics on it have cleaned carb jets set valve and cam timing and still cant get it to start am i missing something

[FORMA MOTO]

13 minutes ago, andyt1 said:

Wonder if anyone can help me a purchased a crf50 of a guy had been lying for a year had to replace full electrics on it have cleaned carb jets set valve and cam timing and still cant get it to start am i missing something

start your own thread in the crf50 forum