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Hose routing question

This is a discussion on Hose routing question within the Yamaha YFM660R Raptor (2001-2005) forums, part of the Performance /Technical category; The small hose that comes off the T fitting between the carbs....Which way does it go? And, what is it for? If anyone has some ...


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Old 05-04-2007, 07:13 PM   #1
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Default Hose routing question

The small hose that comes off the T fitting between the carbs....Which way does it go? And, what is it for? If anyone has some pics of it I'd appreciate it. Tore the sucker apart 3 months ago and now I'm scratching my head. Didn't plan on having it apart that long but stuff happens and you cant get to those little projects sometimes
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Old 05-04-2007, 08:27 PM   #2
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Carb over flow, don't know where the factory routed it but I extended mine and ran it back away from the exhaust and airfilters.
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Old 05-04-2007, 10:16 PM   #3
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I think that's a vent hose. There's a piece of the frame that sticks up, (I think it's the front support for the seat/rear support for the fuel tank?). That hose runs up under that piece of frame through a couple holders and then just hangs there.

It's been quite awhile since I've had mine apart so you'll have to bear with me in my description...LOL
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Old 05-04-2007, 10:56 PM   #4
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^ That is where it belongs.
Maybe it's ment as a vent, but if you route it towards the back and stand the quad on end it leaks.
Maybe I should put it back where it belongs.
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Old 05-07-2007, 04:31 PM   #5
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Thanks guys!
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Old 05-07-2007, 06:50 PM   #6
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it has two threaded brackets which sit inside both sides of the rear metal support for the tank and rubber carb protector. Two bolts go through the rubber, through the support and thread into these brackets to hold everything together. the hose snakes up one side, over the top and down the other, forming a trap... this keeps gas from leaking out when the bikes tipped back as in wheelie or steep hill
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