Rear Tire spins while in idle By styxfan (Read 8,413 times)

[styxfan]

As i am new to scoots and purchased a used one that didn't include any manuals or anything I have a question about the rear tire during idle.
When the scoot is on the center stand (rear wheel off the ground) the rear wheel will spin when in idle. Should this be?

With the rear brake applied, my MC-54-250B (Linhai clone engine)
will idle at just under 2K. When I release the brake, the rear wheel turns and the tach can read over 3K.

Additionally, if I am at a stop and do NOT have the brake applied the scoot will want to roll forward.
I don't recall this being the case when I test drove it (or others).

Should the rear tire spin while in idle?

Are there adjustments I need to make?

Attachments:

[bobf]

Yes, do slow down the idle speed a bit. I have a Honda clone and it should be at about 1800. What you need now is one of the Linhai drivers to tell how to slow the idle and to what speed.

My scoot will sit on the center stand and once warmed up the idle slows down and the wheel stops turning.
.

[trailheadmike]

You want to set the ilde at a point just below where the rear wheel will spin. Like bobf says, put the bike on the stand and let it get nice and warm. If the rear wheel is spinning, decrease the idle till it stops. You should give the screw a 1/4 turn then wait a second to see what happens, and repeat. If the wheel is not spinning, do the reverse. A Linhai engine should be happy to idle around 1800 rpm.

[Bashan]

Here's the manual that you would use for your scooter. As with all Chinese scooters not everything will be a direct application and you should just use it as a general guide. However, you can get the adjustments and routine maintenance out of it no problem. Rich

[styxfan]

Thanks for the help. I've found my idle adjustment screw is very tough to get at. I need to get a 90 degree driver with a real short neck (< 1/4"). Hopefully it's just a small adjustment.

[speedracer]

Idle screw is easy to get at. It sits on the right side of the carb. You must be thinking of the A/F screw which at the bottom of the carb.