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Scooters - 125 to 300 => Agility 125 => Topic started by: Vision on August 24, 2015, 12:18:48 AM

Title: Scooter Died on Me
Post by: Vision on August 24, 2015, 12:18:48 AM
About an hour ago, a few miles from home, the scooter stopped working. The starter is working. There is gas. The oil was just changed. At times it seems like it's about to start and then doesn't. Any ideas?

It's got 9k on it and the fuel filter was supposed to be changed at 7k.

Could the filter be clogged?
Title: Re: Scooter Died on Me
Post by: scooterdad2324 on August 24, 2015, 02:27:59 AM
Sounds like a fuel filter or spark plug problem to me. It happened to me a while back so maybe start there

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Title: Re: Scooter Died on Me
Post by: Jim Moore on August 24, 2015, 09:16:23 AM
My spark plug cap disintegrated on me a while ago. Easy enough to check.
Title: Re: Scooter Died on Me
Post by: Vision on August 24, 2015, 09:06:23 PM
So the bike was towed home last night and it's been sitting. Just tried to start it and it started. What does that mean?
Title: Re: Scooter Died on Me
Post by: jimboeau on August 24, 2015, 09:29:02 PM
So the bike was towed home last night and it's been sitting. Just tried to start it and it started. What does that mean?

If you've never adjusted the valves it could be that.  Often times the bike will stall or be hard to start when warm, but start fine once cold.
Title: Re: Scooter Died on Me
Post by: Vision on August 24, 2015, 10:55:03 PM
It started this afternoon, I was surprised and let it run for 30 seconds.

Tried to run it later, it idled 1-2 minutes and as soon as I tried to take a trip down the driveway it stopped and wouldn't restart.

Valve or fuel problem?

The intake on the fuel filter is 3/4 full, a level I hadn't noticed before.
Title: Re: Scooter Died on Me
Post by: Vision on August 25, 2015, 01:34:09 AM
With more thought on this it must be a clogged fuel filter.
Title: Re: Scooter Died on Me
Post by: scooterdad2324 on August 25, 2015, 02:59:42 AM
Take fuel filter off. If you can blow through it then it should be fine if you can't blow any air through it with your mouth then that's a sure fine sign that it is clogged up

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Title: Re: Scooter Died on Me
Post by: Vision on August 27, 2015, 11:51:27 PM
The problem appears to not be the fuel filter, but that no gas is leaving the tank. When I unplugged the fuel hose from the intake to the filter...before there was a small trickle, and tonight nothing is coming out.

What is that about? The tank is 1/3-1/2 full.
Title: Re: Scooter Died on Me
Post by: MrXT on August 28, 2015, 12:42:40 AM
The problem appears to not be the fuel filter, but that no gas is leaving the tank. When I unplugged the fuel hose from the intake to the filter...before there was a small trickle, and tonight nothing is coming out.

What is that about? The tank is 1/3-1/2 full.

On my agility city there is no petcock or anything to stop fuel from dripping out once the hose has been removed if the agility is exactly the same then there must be a blockage somewhere. If you have taken the hose off the fuel tank and fuel isn't out coming out then there must be a blockage inside the tank I believe there is a filter inside the tank maybe it has caught something? If the hose is still attached to the fuel tank then its much more likely a blockage in the fuel line. Narrow it down by elimination. Replace the hose it needed they don't cost much.
Title: Re: Scooter Died on Me
Post by: Vision on August 28, 2015, 10:34:32 PM
The petcock is clogged. What causes that at 9k km?

I'm the only guy this has happened to?

Can these be cleaned successfully?
Title: Re: Scooter Died on Me
Post by: MrXT on August 28, 2015, 11:59:08 PM
The petcock is clogged. What causes that at 9k km?

I'm the only guy this has happened to?

Can these be cleaned successfully?

The agility has a petcock? Wonder why the city doesn't.

You could just look on eBay for a replacement as they are not easy to clean. If you want to try cleaning it out your best bet would be to leave it in carb cleaner all night and then blow it out maybe with with compressed air.
Title: Re: Scooter Died on Me
Post by: Vision on August 29, 2015, 01:16:09 AM
The agility has a petcock? Wonder why the city doesn't.

You could just look on eBay for a replacement as they are not easy to clean. If you want to try cleaning it out your best bet would be to leave it in carb cleaner all night and then blow it out maybe with with compressed air.


If it's not a petcock, what do you call the thing that screws onto the tank and has an exhaust valve for fuel and another for a vent?
Title: Re: Scooter Died on Me
Post by: Vision on August 29, 2015, 08:57:53 PM
I don't understand this. This is an agility autocock/petcock.

http://thumbs1.ebaystatic.com/d/l225/m/mAGKWSutbgf3h47PozpgGaA.jpg (http://thumbs1.ebaystatic.com/d/l225/m/mAGKWSutbgf3h47PozpgGaA.jpg)

The picture is upside down. But when on the bike the top valve is for the fuel line and the bottom is for the vacuum line.

Now, I believe the fuel valve will only open to let fuel flow through it when vacuum is being applied to the bottom value. If that's the case, how does any fuel get into the fuel line so the bike can start and create vacuum?

I've taken the problem auto cock off and cleaned it. The fuel valve is very open if you blow into it. But of course I need fuel flowing out of it to start the bike.
Title: Re: Scooter Died on Me
Post by: Jim Moore on August 30, 2015, 09:34:21 AM
Vacuum is created when the bike is cranking. That's why it takes a few cranks to start a bike after you drain the float bowl. It takes a little while for them to fill up.

I would check for vacuum on that line.
Title: Re: Scooter Died on Me
Post by: Vision on August 30, 2015, 11:30:34 AM
THANK YOU JIM!

Just sucked on the vacuum line and the petcock worked.

Why is there no vacuum in the line to the petcock? The tube is in good shape.
Title: Re: Scooter Died on Me
Post by: Vision on August 30, 2015, 05:30:52 PM
The situation has changed.

Maybe multiple problems have led to where I am. Currently the carb has fuel but there isn't a spark. When the starter is hit, there is one spark and then, little to no spark after that. Also, on the spark plug cap, about 1/2 of that little area that protrudes at the end has melted.
Title: Re: Scooter Died on Me
Post by: tortoise on August 30, 2015, 05:53:26 PM
there isn't a spark

Replace spark plug cap (https://youtu.be/4s0WHJTOReQ?t=1m56s).

Check ground wire connections (http://www.kymcoforum.com/index.php?topic=12874.0).

Reference section 15 (http://www.motorscooterguide.net/Manuals/Kymco_Agility_50_Service_Manual.pdf) and test pulser coil.  Replacement resource (http://www.chinesescooterparts.com/GY6-ignition-trigger-pickup-0122-08.htm?categoryId=-1).
Title: Re: Scooter Died on Me
Post by: Vision on August 31, 2015, 10:12:14 PM
I replaced the spark plug cap/cable and I'm getting the same issue: one or little spark.

Does this mean the CDI is the problem?
Title: Re: Scooter Died on Me
Post by: Vision on September 03, 2015, 01:32:10 AM
The bike needs a new stator and CDI. From tow to purchasing future roadside assistance to getting back on the road I'm looking at spending a grand. Disappointing when so many people say their bikes go 30k with no problems.
Title: Re: Scooter Died on Me
Post by: jeeves on September 03, 2015, 01:02:44 PM
The bike needs a new stator and CDI. From tow to purchasing future roadside assistance to getting back on the road I'm looking at spending a grand. Disappointing when so many people say their bikes go 30k with no problems.
Why both?
I understand that the stator can be the reason you have ignition problems , but what's the CDI got to do with it?