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Scooters - 50cc => Super 8 => Topic started by: Ian7 on January 01, 2015, 10:19:09 PM

Title: another carb question - inlet restriction
Post by: Ian7 on January 01, 2015, 10:19:09 PM

While in the middle of doing the exhaust de-restriction, I noticed the carb breathes through a 1" square hole that immediately drops to about a 5/8 diameter tube....  does it make sense to carve out the tube and leave the bigger square opening, or does the carb need what looks like that purposeful pressure drop upstream? thx for all the help :-)

Title: Re: another carb question - inlet restriction
Post by: Ian7 on January 01, 2015, 10:28:43 PM

this :

Title: Re: another carb question - inlet restriction
Post by: BettinANDlosing on January 01, 2015, 10:53:41 PM

You can just yank out the rubber tube, be ready to upjet.

Title: Re: another carb question - inlet restriction
Post by: zombie on January 02, 2015, 12:37:14 AM

It's a restriction to keep smaller jetting, and better fuel mileage. Nothing more than that.

It's the first part that is removed. (after the price tag)

Title: Re: another carb question - inlet restriction
Post by: Ian7 on January 02, 2015, 01:48:07 PM

thx  :-)

with bettinandlosings' exhaust de-restriction, and this inlet opening, would an 85 be big enough? (sea level in coastal georgia)
max performance at expense of piston life is NOT my goal  lol

Title: Re: another carb question - inlet restriction
Post by: BettinANDlosing on January 02, 2015, 04:35:10 PM

85 will most likely be too small but its a good starting point. Jetted right you shouldn't lose any longevity of the engine, only a few mpg's.

Title: Re: another carb question - inlet restriction
Post by: zombie on January 02, 2015, 07:36:34 PM

85=90 is ball park. +1 the engine will not suffer at all. They can do much more than this.

Title: Re: another carb question - inlet restriction
Post by: BettinANDlosing on January 02, 2015, 09:41:10 PM

If anything taking away restrictions will ADD life to the engine, less restriction = better performance and longevity, if you don't floor it any more LOL.

Title: Re: another carb question - inlet restriction
Post by: BettinANDlosing on January 28, 2015, 01:39:32 AM

^^^^^^^^^ Look what I said, #85 will most likely be too small, then you yank it out and put in a #82 and think it'll run good? Dude, seriously follow advice given to you before raging when your scooter does not run right.

Title: Re: another carb question - inlet restriction
Post by: zombie on January 28, 2015, 01:52:29 AM

Did I miss something here?

A yanked post?

Title: Re: another carb question - inlet restriction
Post by: BettinANDlosing on January 28, 2015, 02:03:15 AM

http://www.kymcoforum.com/index.php?topic=13410.msg133872#msg133872 (http://www.kymcoforum.com/index.php?topic=13410.msg133872#msg133872)

This dude is seriously trying to blame me for screwing up his scooter.

Title: Re: another carb question - inlet restriction
Post by: zombie on January 28, 2015, 02:20:18 AM

I'll load up the dogs, you throw him the hamburger meat.

Meet you behind Sally's in 2 hours. 8)