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Old 12-16-2013, 03:44 PM   #6
Gnarly Adventurer
Joined: May 2011
Location: Québec
Oddometer: 331
Had something similar on my previous bike.

Not a hose but a small diaphragm in one of the carbs. It's the fuel shut off valve that prevent gas to be sucked in by the engine vaccum on decel.

Bike was burping and popping on decel and even a little on steady no load throttle cruising on the highway.

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