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Author Topic: What's this bolt in my exhaust for?  (Read 1100 times)

Kingb36

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What's this bolt in my exhaust for?
« on: March 21, 2020, 11:15:50 PM »
Title says it. Just curious what it is. Is it some sort of restrictor? New to scooters. My goals 45-50 Mph. I got a 2013 Kymco Agility 50. Made before July 2013. Any info on upgrades or dyi topics I'd love to read. Hope to be on the forum a while and glad you guys are here. Cheers.
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Kingb36

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Re: What's this bolt in my exhaust for?
« Reply #1 on: March 21, 2020, 11:40:40 PM »
Sorry I can't post a pic till I have four posts.
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Kingb36

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Re: What's this bolt in my exhaust for?
« Reply #2 on: March 21, 2020, 11:41:18 PM »
It's a small bolt in the tube between engine a muffler.
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Kingb36

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Re: What's this bolt in my exhaust for?
« Reply #3 on: March 21, 2020, 11:41:46 PM »
It looks like the bolt in the next post. Lol
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Kingb36

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Re: What's this bolt in my exhaust for?
« Reply #4 on: March 21, 2020, 11:43:34 PM »
Bolt
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Stig / Major Tom

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Re: What's this bolt in my exhaust for?
« Reply #5 on: March 21, 2020, 11:57:00 PM »
Pretty sure it's not restricting anything , but looks like a port for testing ....something.  Emissions? Tuning?
Stig
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Boston Strong
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CROSSBOLT

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Re: What's this bolt in my exhaust for?
« Reply #6 on: March 22, 2020, 12:16:32 AM »
That's where the stick the probe to see the emisssions numbers.
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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

TBR125

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Re: What's this bolt in my exhaust for?
« Reply #7 on: March 31, 2020, 04:42:17 PM »
That is an o2 sensor port. Also can be used to check exhaust backpressure when tuning mufflers.
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Iahawk

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Re: What's this bolt in my exhaust for?
« Reply #8 on: July 24, 2020, 12:45:15 PM »
like TBR125 said, I always assumed it was the spot where the o2 sensor would go on the fuel injected version of the bike. if you have a carb you get a plug.
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2010 People S200 - sold after 8 wonderful years!
2014 Ninja 300
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1984 Honda Nighthawk 650

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