Checking The Engine Idling Speed; Checking The Throttle Grip Free Play; Valve Clearance - Yamaha YW50FD Owner's Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
Checking the engine idling
speed
Check the engine idling speed and,
1
if necessary, have it corrected by a
Yamaha dealer.
2
Engine idling speed:
2000 - 2200 r/min
3
4
5
6
7
8
9
EAU44734
Checking the throttle grip
free play
The throttle grip free play should
measure 3.0 - 5.0 mm (0.12 - 0.20 in)
at the inner edge of the throttle grip.
Periodically check the throttle grip free
play and, if necessary, have a Yama-
ha dealer adjust it.
6-16
EAU21384

Valve clearance

The valve clearance changes with
use, resulting in improper air-fuel mix-
ture and/or engine noise. To prevent
this from occurring, the valve clear-
ance must be adjusted by a Yamaha
dealer at the intervals specifi ed in the
periodic maintenance and lubrication
chart.
EAU1722A
EAU21401