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BosoxBruce

2005 Arctic Cat 250 2x4 Gas leak

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Recently I noticed gas leaking from under the gas tank on my 2005 250 2x4. As I looked closer it appears to be leaking from the shut off valve under the tank. It's the valve with the handle that can be turned to open, close or reserve. Can this part be replaced? Thank you.

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Yes  that  valve  is easily replaced. Your  local  quad dealer  may  have one in stock  or a quick search online  should  give  you several sources and prices .
 

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So the 2 nuts that attach the fuel valve up into the gas tank are really tight. I have tried different metric and standard sockets and they won't budge. I can't see underneath them but was wondering if the bottom of those nuts have a star pattern or hex pattern to remove them?

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I  can't tell  you  how they're  locked , but if it  might  be with thread locker , like  Loctite , you  could try  heating them  up  good and  hot  with a soldering iron.  Empty the  tank , leave the  cap  off  and  no  open  flames  to  heat  the  nuts  with..  Heat  on them  will kill  any  locking compound if present  and will likely  help to  loosen the nuts if they  are mechanically  locked with a star  washer or  other means.

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