loss of speed/power stalling By rigfield (Read 1,273 times)

[rigfield]

I bought a used JCL 250 not sure of the model from my friend. I was getting good speed for about a week now I am getting only about 30mph out of it. Also when I am slowing or idling I get a puttering sound and sometimes it stalls.

I have read somethings about lean/rich and carb settings but unsure about tinkering till I could get some advice.

Thanks for any help you can lend.

-Tom

[gatekeeper]

I would start by adjusting the valves. That is a common remedy for sputtering/stalling issues. This link shows how to do both types of 250cc engines.

scooterdoc.proboards.com/index.cgi?board=videos&action=display&thread=4731

[jct842]

The carb settings usually do not change in a weeks time. But the valves can and do change. Never adjust on two things at the same time. What kind of performance were you getting to start out with? How fast?

[rigfield]

Thanks for the advice. Yeah being new to these things requires some help. Gonna hit the store and buying some tools for the gap distance measurement.

I was getting to about 60 mph in the beginning and it slowly changed. But I will be changing the oil and doing a part inspection as well also.

Thanks again.

-Tom

[Alleyoop]

Hey Tom, are you sure the guy you bought it from is a FRIEND(HAHA).
Alleyoop

[rigfield]

adjusted the valves as per some of the youtube videos and also changed the the fluids out. and my problems are gone. thanks for all the advice, it goes a long way.