Checking The Throttle Grip Free Play; Valve Clearance - Yamaha MTM690 Owner's Manual

Periodic maintenance and adjustment
2. Clean and then install the hose.
6
Checking the throttle grip free
play
Measure the throttle grip free play as
shown.
1
1. Throttle grip free play
Throttle grip free play:
3.0–5.0 mm (0.12–0.20 in)
Periodically check the throttle grip free
play and, if necessary, have a Yamaha
dealer adjust it.
6-15
EAU21386

Valve clearance

The valves are an important engine
component, and since valve clearance
changes with use, they must be
checked and adjusted at the intervals
specified in the periodic maintenance
chart. Unadjusted valves can result in
improper air-fuel
noise, and eventually engine damage.
To prevent this from occurring, have
your Yamaha dealer check and adjust
the valve clearance at regular intervals.
TIP
This service must be performed when
the engine is cold.
EAU21403
mixture, engine