yz450f carb help

chastastic

Member
Jun 18, 2007
5
0
i just bought a 03yz450f and when you put gas in the tank it will just drain out the bottom of the carb. any ideas? cheap fix?
 

fatboyslim

Member
Apr 11, 2006
255
0
is your drain bolt on the bottom of the carb tightened or even there? (if there is one). Float levels?
 

chastastic

Member
Jun 18, 2007
5
0
i'm thinking it's the floats because it will just drain the whole tank if i let it sit.
 

Ol'89r

LIFETIME SPONSOR
Jan 27, 2000
6,958
45
chastastic said:
i'm thinking it's the floats because it will just drain the whole tank if i let it sit.

If the drain cap on the bottom of the float bowl is sealing correctly, it is most likely sediment in the float needle or a bad float needle. When you reassemble the carb, check the float level also.
 

chastastic

Member
Jun 18, 2007
5
0
adjusting the float level, if i just bend the tab in twords the float valve that should push it to seal properly? is there any other reason it would be leaking from the bottom overflow tube? i just took apart and reasembled the float/valve and it is still leaking
 
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