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Diaphragm looks good could it still be bad?? Carb cleaned spark good , vac lines appear to be good , fuel filter changed

Bad diaphragm still
1 (50%)
Or not enough fuel?
1 (50%)

Total Members Voted: 2

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Author Topic: Agility 125 Kymco bogs over 35  (Read 1696 times)

Theacguy

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Agility 125 Kymco bogs over 35
« on: November 18, 2015, 12:30:35 PM »
Please help !
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tortoise

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Re: Agility 125 Kymco bogs over 35
« Reply #1 on: November 18, 2015, 03:07:27 PM »
Any chance you are just overfilling the gas tank and wetting the venting canister element.  Have you tried running with the gas cap loose?

What is a spark plug read indicating?  Have you observed if the carb slide is rising properly, and checked for a fuel vacuum-petcock issue?  Have you referenced the service manual and Ohms tested the trigger/pickup coil and ignition coil . . or tried a replacement DC-CDI . . or the ice test ?

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Theacguy

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Re: Agility 125 Kymco bogs over 35
« Reply #2 on: November 18, 2015, 10:03:18 PM »
I've observed the slide in the carb and when I go about halfway with throttle it rises but if I go further engine bogs and slide starts to drop .... As far as the vacuum valve on gas line I disconnected fuel line after filter and when engine runs gas pours freely I've also set up a gravity fed system and still no change , never put spark plug on reader but plug is burning tannish ... Everything else you've said is gibberish to me sorry I was given this scooter for free it wouldn't start , changed battery , fuel filter , took apart carb and cleaned and regapped plug and I got it to run just bogs now over 30-35 .... I'm new to the small engine world forgive me for not knowing what some of these parts are but if u can pass me on a list of what u think I greatly appreciate it and thank you for taking the time to reply my friend
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Theacguy

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Re: Agility 125 Kymco bogs over 35
« Reply #3 on: November 18, 2015, 10:11:18 PM »
Where's the school-CDI located and what's the ice test ???
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Jim Moore

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Re: Agility 125 Kymco bogs over 35
« Reply #4 on: November 19, 2015, 10:29:49 AM »
Your description of diaphragm functioning does not sound right. It should stay up at full throttle and high rpm. Maybe it's torn, or not seated properly.
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Theacguy

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Re: Agility 125 Kymco bogs over 35
« Reply #5 on: November 19, 2015, 12:23:34 PM »
The only thing that makes me think that it's not the diaphragm is that as I rev engine up it slides up and stays up and it's not until I go further with acceleration and engine bogs then the slide starts to drop and if I hold the slide up engine still bogs
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Jim Moore

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Re: Agility 125 Kymco bogs over 35
« Reply #6 on: November 23, 2015, 11:31:30 AM »
Yeah, that makes sense.

I had a similar thing of a 50 cc scooter once. I tried everything and couldn't get it to work. I finally gave up. A buddy took up the challenge. He replaced the carb (which was working fine as far as we could tell) and "VROOM!" it was fixed.
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