Air Cleaner; Throttle Valve Operation - Sym ATTILA RS-21 EFi 150 Service Manual

Air Cleaner

Air element
Remove the air cleaner cover (6 screws).
Remove the lock plate from the element of air
cleaner.
Check the element if dirt or damaged.
If it dirt, clean it with solvent and then soap it into
cleaning engine oil after cleaned. Finally,
squeeze it.
Replace it with new one if dirt or damaged.
Caution
Make sure that the air cleaner cover had
•
been installed properly after installation
because improperly installation will cause
foreign sucking into cylinder.
Do not wet the air cleaner as washing the
•
motorcycle. Or it may effect engine
performance.

Throttle Valve Operation

Have a wide open of throttle valve as handle bar
in any position and release it to let back original
(full closed) position.
Check handle bar if its operation is smooth.
Check throttle valve cable and replace it if
deteriorated, twisted or damaged.
Lubricate the cable if operation is not smooth.
Measure handle bar free play in its flange part.
Free play¡ G 2~6 mm
Adjustment can be done in either ends.
Secondary adjustment is conducted from top
side.
Remove rubber boot, loosen fixing nut, and then
adjust it by turning the adjustment nut.
This chapter Contents
6 screws
Rubber boot
2. Maintenance Information
Adjustment nut
2~6 mm
Fixing nut
2-5