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General Category >> Rubber Side Down! >> What do these tubes do on the back of the carb?
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Message started by IslandRoad on 01/20/17 at 01:18:47

Title: What do these tubes do on the back of the carb?
Post by IslandRoad on 01/20/17 at 01:18:47

Hey guys,

What do these two tubes do on the back of the carb (bottom of the picture). Are they breather tubes?

Mine are poked up into a little cavity in the frame. I am wondering if that restricts them in doing their job.

Thanks for your patience with this newbie question 8-)

Title: Re: What do these tubes do on the back of the carb
Post by Dave on 01/20/17 at 03:15:22

They are vents for the float bowl chamber.

Title: Re: What do these tubes do on the back of the carb
Post by IslandRoad on 01/20/17 at 03:18:05

Thanks.

7D464B5C4D415A5C474F425D2E0 wrote:

They are vents for the float bowl chamber.

Title: Re: What do these tubes do on the back of the carb
Post by Dave on 01/20/17 at 03:39:18

I have often wondered why they are arranged in that position. Most pre-EPA carbs would have the vent tubes routed downward, and if the bike tipped over the fuel would flow out of the tubes under the engine. If the Savage tips over the fuel flows out the tubes and into the frame under the fuel tank, and when you tip it back upright the fuel flows out of the frame and onto the top of the engine case.

I suppose this is just another reason that you should not let your bike fall over! :o

Title: Re: What do these tubes do on the back of the carb
Post by batman on 01/20/17 at 15:50:56

That's why I cut mine back to about 3'' I didn't want fuel dripping on my hot motor.

Title: Re: What do these tubes do on the back of the carb
Post by IslandRoad on 01/22/17 at 03:07:13

I'll add that to my "reasons not to crash" list!

02393423323E252338303D22510 wrote: