Jianshe JS125-6B, Maintenance Manual

Page: 43 / 210

PERIODIC INSPECTION AND ADJUSTMENT
33
Adjust CO content under idle speed condition
1. Install the measuring instrument as fellows
The measuring instrument with the measure-normal-
temperature probe and the engine tachometer.
2. Start engine to warm until oil temperature up to the
specification.
3. Confirm idle speed value:
4. install CO content measuring instrument
5. Check CO consistency value
Exceed standard value Adjust P.S adjusting screw
(work in with adjustment of the idle speed screw)
Standard CO consistency value
1.5%~4.5%
Out of specification Adjust
Free play of extent part of the throttle
handle 3~7mm
Tighten the lock screw cap
Turn in The clearance is increased
Turn out The clearance is decreased
Given measurement
55~65
Check/adjust the free play of the
throttle cable
1. Check
Check free play of extent part of the throttle
handle
2. Adjust
Free play of extent part of the throttle handle
******************************************
Adjusting orders
The first step (the throttle cable)
Loosen the lock screw cap
Adjust the adjuster