Buddy 125 Stutters to a Stop

kyleutah · Post by **kyleutah** » Tue Jun 28, 2016 2:52 am

Recently stopped creating a spark, so I replaced the spark plug (no luck), coil (no luck) and CDI (started right up). Drove it back home in the borrowed pickup truck and went out on my first ride. Upon starting everything sounded normal. When I began to accelerate the tone of the engine was deeper and somehow emptier than before. And when I reached around 20mph there was resistance to accelerate any faster. I continued for 2 blocks before it stuttered to a stop and I had to walk it home because it wouldn't start. Give it a few hours and the engine starts back up again but with the same problem, stutters and shuts off after a couple minutes of riding. I loosened the gas tank cover to make sure I hadn't created a vacuum in the tank with no difference. I also changed the old fuel line filter with no difference in performance. Any thoughts?
Cheers!

scootERIK · Post by **scootERIK** » Tue Jun 28, 2016 3:24 am

Stator would be my guess.

What year is your scooter?
How many miles?
Before this did it ever die when coming to a stop?
Has it ever been slow to start?
Have the valves been adjusted?

kyleutah · Post by **kyleutah** » Tue Jun 28, 2016 3:30 am

1. 2007
2. 9,200 miles
3. Happened a couple times before but stopped happening when I got a new battery
4. Never been slow before
5. No valve adjustment that I know of

scootERIK · Post by **scootERIK** » Tue Jun 28, 2016 4:25 am

First thing would be to check the valves since they are long overdue. There is a good chance that you exhaust valve needs to be opened up.

There is a chance it could be the stator, but I would look at the valve adjustment first.