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Scooters - 50cc => Agility 50 => Topic started by: Kingb36 on March 21, 2020, 11:15:50 PM

Title: What's this bolt in my exhaust for?
Post by: Kingb36 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.

Title: Re: What's this bolt in my exhaust for?
Post by: Kingb36 on March 21, 2020, 11:40:40 PM

Sorry I can't post a pic till I have four posts.

Title: Re: What's this bolt in my exhaust for?
Post by: Kingb36 on March 21, 2020, 11:41:18 PM

It's a small bolt in the tube between engine a muffler.

Title: Re: What's this bolt in my exhaust for?
Post by: Kingb36 on March 21, 2020, 11:41:46 PM

It looks like the bolt in the next post. Lol

Title: Re: What's this bolt in my exhaust for?
Post by: Kingb36 on March 21, 2020, 11:43:34 PM

Bolt

Title: Re: What's this bolt in my exhaust for?
Post by: Stig / Major Tom 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

Title: Re: What's this bolt in my exhaust for?
Post by: CROSSBOLT on March 22, 2020, 12:16:32 AM

That's where the stick the probe to see the emisssions numbers.

Title: Re: What's this bolt in my exhaust for?
Post by: TBR125 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.

Title: Re: What's this bolt in my exhaust for?
Post by: Iahawk 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.