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HD & Ducati Rider
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48 Posts
Discussion Starter #1
There is a little thumb valve by the rad hose. I'm tempted to fiddle with it but probably wise to ask what it is first. Can u help?

Thx.
 

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Killer Service Inc.
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8,938 Posts
Sure...Do you have a manual?
 

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Banned
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1,783 Posts
Is the one you referring to the black round one with a textured surface by the throttle linkage? I'd like to know as well.
 

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Ride hard die hard
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243 Posts
Sounds like a idle adjustment. ???? but I think thats on carburated bikes only.
 

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Premium Member
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5,719 Posts
It is a schrader valve. The knob you are referring to is actually a plastic cap protecting the valve. It is a diagnostic port for checking the fuel pressure. I wouldn't recommend pushing it while the bike was on unless you want to get wet :D
 

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Ride hard die hard
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243 Posts
It is a schrader valve. The knob you are referring to is actually a plastic cap protecting the valve. It is a diagnostic port for checking the fuel pressure. I wouldn't recommend pushing it while the bike was on unless you want to get wet :D
So you can get a gauge setup to ride and check fuel pressure? That is badass. I had to make my own for my aprilia.
 
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