Valve Clearance Inspection And Adjustment; Idle Speed / Exhaust Gas Adjustment - Sym ATTILA RS-21 EFi 150 Service Manual

Valve Clearance Inspection And
Adjustment
Check & adjust valve clearance with feeler
gauge.
Valve clearance (IN/EX): 0.12 ± 0.02 mm
Loosen fixing nut and turn the adjustment nut for
adjustment.
Caution
It has to make sure that valve rock-arm is be
adjusted to standard level when adjusting it,
and re-check the valve clearance after
tightened the fixing nut.
Idle Speed / Exhaust Gas
Adjustment
Connect the DATASCAN connector with the body
harness connector.
Turn on main switch and start the motor. Then
the DATASCAN will open to initial window
automatically.
Adjust the Data Scan to data monitor menu.
Caution
Inspection & adjustment for idle speed
•
have to be performed after all other parts
in engine that needed adjustment have
been adjusted.
Idle speed check and adjustment have to
•
be done after engine is being warn up to
working temperature 115~130¢ J . (around
10 minutes)
This inspection & adjustment have to be
•
done with DATASCAN. Never adjust the
adjustment screw on the throttle body
arbitrarily to prevent from effect fuel
injection precision.
If idle speed and CO have to be adjusted, then
turn the DATASCAN to idle speed & CO
adjustment function window.
Press "ENTER" key to enter adjustment function.
The cursor "▲, ▼" is for a digit and the "◄, ►" is
for denary scale.
Emission standard:
Engine RPM
HC
CO
Please refer to chapter 4, fuel system, for the
detailed usage of DATASCAN.
This chapter Contents
1600 ± 100rpm
900 ppm¡ õ
1.5 ± 0.5%
2. Maintenance Information
2-7