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Author Topic: What's the purpose of this bolt in exhaust?  (Read 1077 times)

MotoRandy123

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What's the purpose of this bolt in exhaust?
« on: October 21, 2012, 12:27:41 AM »
Maybe for setting the smog?



I might try taking it out for more power!
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Pimpy1

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Re: What's the purpose of this bolt in exhaust?
« Reply #1 on: October 21, 2012, 02:27:16 AM »
The one on the right is for testing. If you take it out your scoot gets loud at can be. I saw no power or speed gain. I had to see for myself.
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CROSSBOLT

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Re: What's the purpose of this bolt in exhaust?
« Reply #2 on: October 21, 2012, 07:46:12 PM »
Like Pimpy said, that's where you stick the probe for exhaust gas analyzer. I think it is an 8 mm hex and the threads are about 4 mm. I imagine it is loud!

Karl
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Karl

Three motorcycles 1960-1977 (restored a 1955 BSA)
Agility 50
Yager 200i
Downtown 300i
Navy tech, Ships Engineer, pilot and aircraft mechanic

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