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Scooters - 50cc => Agility 50 => Topic started by: matt_s on July 02, 2010, 01:30:47 PM

Title: High idle problem
Post by: matt_s on July 02, 2010, 01:30:47 PM

My Agility has a very funny problem. When I stop at a redilight for example and let go of the throttle, the idle is too high. I can feel the variator wanting to drive it forward. To get it down I have to give a little throttle and then let go, then I get the real idle rpm. Or I could wait 30s or so for it to come down, but sometimes it comes back up again.

Anyone had this problem? Could it indicate a problem with the auto choke? Besides this problem it runs fine, very easy to start and the top speed is as it should be, 45kmh, given it's not modified.

Title: Re: High idle problem
Post by: blue on July 02, 2010, 10:28:22 PM

sounds like you need to clean the throttle cable. and oil it up. or check to see if your hand grip is sticking.

Title: Re: High idle problem
Post by: Cloud on July 03, 2010, 03:26:57 AM

My 04 People 50 was acting exactly the same way.
It was the choke.

Title: Re: High idle problem
Post by: matt_s on July 03, 2010, 05:12:59 PM

Yep, the spark plug is all black so it's def getting a rich mixture. Any one tried a non original auto choke? The original one is so expensive...

Title: Re: High idle problem
Post by: zombie on July 04, 2010, 09:24:54 PM

I have a manual choke set up I got w/ my delorto. It will work w/ your stock carb as well.

Title: Re: High idle problem
Post by: wordslinger on July 04, 2010, 09:46:56 PM

I have a manual choke set up I got w/ my delorto


..i NEED that on my ppl..

Title: Re: High idle problem
Post by: matt_s on July 05, 2010, 10:58:44 AM

It will? I was told that the Dellorto manual choke won't fit the Kymco 4 stroke original carbs?

Title: Re: High idle problem
Post by: matt_s on July 06, 2010, 05:46:50 PM

Automatic choke replaced but it still runs rich when idle, I'm thinking it's the idle needle since I've checked everything else.

Title: Re: High idle problem
Post by: art on July 06, 2010, 06:27:47 PM

check some of zombie's posts on proper air idle setting,that is your problem most likely.

Title: Re: High idle problem
Post by: matt_s on July 07, 2010, 06:16:10 PM

I will do that, I saw in one of those posts that turning the pilot screw in (clockwise) will make it leaner. However, the service manual states that if it's too rich you should: "Mixture too rich (turn screw out)"

Title: Re: High idle problem
Post by: art on July 07, 2010, 06:33:55 PM

follow the directions of the post its the right way,I had the same problem and had to go closer to a 1/2 turn in to get it right all works great now on 4 different scoots i tuned by ear.