Any ideas on why my 2008 XINGYUE XY 260 T-4 scooter won't start and keep running?

by Jerry
(Washington State USA)

My scooter was running fine. Then I started it and it seemed to be running rough and then died a mile down the road. All fluid levels are good and I drained and refilled the gas tank. I have what I think is more than adequate spark.

Compression is at 180lbs. Fuel is getting to the carburetor. I have changed the spark plug. The electric choke tests out and 6 ohms. And 3 volts of power when cranking the engine. I have checked the intake manifold and can not find any cracks.

Sometimes it runs for a second or less but then just cranks. It will not even fire on starting fluid. Is there a way to check timing without taking the side of the motor off? Or does anyone have any ideas of what it could be? Or where to get a service manual?

Comments for Any ideas on why my 2008 XINGYUE XY 260 T-4 scooter won't start and keep running?

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Jun 07, 2011
Problem solved ?
by: R P

We haven't seen any more posts since May 15th. Any further news?

May 15, 2011
by: Jerry

sorry been out of town I will give it a try and let you know.

May 15, 2011
Variator belt
by: rp

I am new to scooters but am a diy'er myself. I have the same scooter, purchased Oct. 2010.

Have you checked your variator belt? Side cover comes off pretty easy. There is also a screw in the center of the cover. Mine was covered with a piece of foam and I didn't realize it was there.
(There is a vent cove mounted to the variator cover that has to come off first)

When the belt goes bad it can bind up and prevent the engine from turning.

May 15, 2011
Any Luck w/starting
by: rp

You said electrical looks good, fuel to carb., tested spark plug by setting on head and cranking to see blue spark. Have you checked your valve clearance?

May 07, 2011
by: Jerry

Thanks yes, I have changed spark plugs and cdi boxes from what I can tell the timing looks good but I have not removed the drive pulley to make sure.
The spark seems ok but I am not sure of what it should look like.

May 06, 2011
by: Jim Zeiser

Have you checked to see if you have spark at the spark plug? You could have a bad CDI or coil. Also try replacing the spark plug. They go bad for no reason sometimes. Your problems sound electrical.

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