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Messages - donatello

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Agility 125 / Re: Agility 125 won't go over 35mph *SOMETIMES*
« on: April 23, 2015, 02:23:59 AM »
Hey guys, I'm back. So the problem continues to happen, however, I discovered that the problem is simple - the rubber diaphragm continues to get stuck in the carb and fails to lift as I pull the throttle. I plan to replace all fuel and vacuum lines in the case there is dirt or gunk in any of the lines.

Does anyone know any other potential problems that may affect the vacuum in the carb?

Are there any solutions to preventing the rubber diaphragm from getting stuck?
(i.e. sanding down the bore of the carb to remove varnish (assuming theres any), putting a very slight amount of grease on the vacuum slide to prevent locking, etc.) I haven't tried anything yet but am wondering if anyone has experimented with this problem?

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Agility 125 / Re: Brake fluid
« on: April 20, 2015, 06:25:55 PM »
Quote from: MrXT on April 20, 2015, 03:30:28 AM
So non synthetic is what comes with it from stock??

yes, stock brake fluid is non-synthetic MrXT

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Agility 125 / Re: HID Xenon 35w headlight install
« on: April 14, 2015, 11:29:36 PM »
The headlight comes on with the engine running. When the key is in the 'ON' position but the engine is not running, the headlight will not work. In this case, would the headlight be AC or DC?

I've seen many project threads about modifying the housing to accept an h4 bulb, but the conversion is daunting. Here is a link to a chinese HID bulb kit for ba20d bulbs --> http://www.ebay.com/itm/Xenon-HID-Motorcycle-H7-H6M-BA20D-6000K-High-Low-Beam-Bi-Xenon-35W-White-Light-/271611680513   OR    http://www.hdbright.com/ba20d-hid-headlight-conversion-kit-for-ktm-single-5000k-p-329.html


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Agility 125 / HID Xenon 35w headlight install
« on: April 14, 2015, 08:07:30 AM »
The headlight output on my 2009 agility is the equivalent of a candle light. I constantly think about upgrading to an HID kit, but the ba20d stock headlight housing makes an upgrade very complicated. There are previous threads on this topic but nothing answers any specific questions. For anyone who has knowledge or experience on this topic:

1. Does a kymco agility 125 have an AC or DC electrical system?
2. How well do the cheap chinese ba20d HID kits mount to the stock housing? Light output?
3. If I modify the housing to fit a 35w H4 HID kit (low xenon/high halogen), will the battery be able to withstand the extra power usage?

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Agility 125 / Re: Night riding with bi-xenon installed Agility
« on: April 14, 2015, 07:50:23 AM »
To zombie: you say you bought set of HIDs with lifetime guarantee. where did you manage to find a ba20d HID kit with a lifetime warranty? Did you purchase a H4 Hid kit and retrofit it or modify the housing to fit the bulb? Or does the downtown 300 already use an H4 bulb?

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Agility 125 / Re: Stock bulb replacement agility 125
« on: April 14, 2015, 06:30:37 AM »
I would also like to know if anyone could shed some light on this topic. My agility can barely light up 10-15 feet in front of me and driving at night on unfamiliar roads are quite dangerous. I've tried the cheap chinese "xenon" (so they claim) lights on eBay. The light worked and looked great...for the 30 minutes that it worked before eventually blowing out.

Anyone out there know a resource or modification for brighter headlight setups?

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Agility 125 / Re: Performance Ignition Coil upgrade
« on: April 14, 2015, 06:25:58 AM »
You make a valid point. Thanks for the advice! You just saved me $20  8)

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Agility 125 / Re: Agility 125 Checkup?
« on: April 14, 2015, 06:24:15 AM »
Belt and roller maintenance are essential to maintain performance.
Gear oil wouldnt hurt either with all the miles on your engine.
If your scoot has ever sat for a long period of time, cleaning the carb may be a good idea too. Tho if you're not confident enough to take apart the carb, an ounce or two of seafoam should help clean out the fuel lines, filter, and carb decently.
Simple things like proper psi in tires, adjusting rear brake cable, and replacing brake fluid assure you're getting the most out of your scoot

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Agility 125 / Re: Kymco 125 cranking issues
« on: April 14, 2015, 06:17:55 AM »
Do the lights and turn signals work? If not when the crank won't turn then it may be a battery issue. It also sounds like your starter motor could be deficient but thats unlikely if you only have 350 miles on it.

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Agility 125 / Re: Agility 125 won't go over 35mph *SOMETIMES*
« on: April 14, 2015, 06:11:49 AM »
After much research, I figured I would change the fuel lines and filter and clean the fuel petcock.

I havent gotten around to clean the petcock or replacing any fuel lines or filter yet. Although I opened up the carb and readjusted the diaphragm. Voila! That fixed the problem and immediately performance went back to normal.

I now am afraid that the vacuum slide or diaphragm (whichever term is preferred here?) will continue to get stuck in the carb. Does anyone has any solutions to prevent the diaphragm from sticking? I've heard of sanding down the varnish in the carb bore but I don't see any and the carb seems to be smooth, slick, and shiny. I don't wanna mess with anything before I got some advice first. Any suggestions??? Please & Thanks ahead of time!

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Agility 125 / Re: Agility 125 won't go over 35mph *SOMETIMES*
« on: April 13, 2015, 11:33:41 PM »
I went ahead and replaced the diaphragm. Immediately performance went back to normal. The speed was there and the engine ran smooth, until yesterday. The engine had a really hard time starting up - took about 20 seconds each time (4x a day).

Today as I was driving the scooter and had stopped at a stoplight i noticed the engine idling really low. As i pulled the throttle to go, I went no faster than 25mph. I have no tachometer so I am not sure how many rpm's the engine was getting, but it felt like the engine wasn't even revving up. Im no expert on engine noise but it sounded as if the engine wasn't getting enough fuel. Now every time I twist the throttle at a stop, the engine will die or almost die. HELP PLEASE!

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Agility 125 / Performance Ignition Coil upgrade
« on: April 10, 2015, 09:46:38 AM »
I am considering buying a performance ignition coil to improve spark but am curious to know if anyone has experienced better performance? or is it no better than a stock coil

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Agility 125 / Re: Agility 125 won't go over 35mph *SOMETIMES*
« on: April 07, 2015, 10:46:22 PM »
Another question. I haven't received the new diaphragm in the mail yet but still ride the scooter around.

I am wondering what the standard number (or range) of turns for the fuel mix screw should be after fully tightening the screw? on a 4 stroke motor

If there is no standard then I will play with the mixture once I receive the replacement diaphragm. It seems a bit rich right now but I will see if the new diaphragm changes that.

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Agility 125 / Re: Agility 125 won't go over 35mph *SOMETIMES*
« on: April 06, 2015, 09:44:12 AM »
Thanks for the advice tortoise. I cleaned the carb and fuel filter and it did the same thing again today. Twice actually both times while I was suddenly turning left at a stop light.

Anyway, since the diaphragm is cheap I purchased a new one. Took the carb apart and noticed the upper rubber part had a tear in the outer ring portion. I will replace diaphragm and smear grease on the join surfaces and let you know if that fixes the problem.

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Agility 125 / Agility 125 won't go over 35mph *SOMETIMES*
« on: April 02, 2015, 03:21:45 AM »
I have a 2009 Kymco Agility 125 that has performed well for about a year now. I drive the scooter about 15 miles per day and am able to reach over 65mph typically on an open road. Every few days or so, when I start the engine the acceleration is really slow and I can't go over 35mph. The weird part is when I shut off the engine and start it up again a few hours later, the performance will most of the time go back to normal.
I first removed the cvt cover and replaced the belt since it has been a couple of thousand miles since I last did that - also changed the variator rollers and clutch since they have never been changed. The problem still persisted so I put seafoam in the gas tank to help unclog the fuel lines and carb. I plan to remove the carb tonight and drown it in carb cleaner hoping that will solve the problem. Im hoping I won't have to replace fuel lines or dig into this problem much further. My next guess would be to replace the fuel filter but I am uncertain of what benefits that may provide. Anyone have this problem before or have any wisdom to share on this issue? Thanks!

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