Honda Red Wing Rider
Join Date: Dec 2006
Location: Parts unknown...
You are technically supposed to replace the internals of that coupler when you have it off.
Toodeep is likely correct on this one. Also, make sure it isn't something silly like the fuel tank vent line is kinked/clogged.
How long will it run on start up?
'08 TRX420FM - Warn XT25, 25" Mud Bugs, Moose hand/thumb warmers