Checking The Throttle Grip Free Play; Valve Clearance - Yamaha ZUMA 125 2020 Owner's Manual

Periodic maintenance and adjustment
Checking the throttle grip free
play
Measure the throttle grip free play as
shown.
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.
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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 mixture, engine noise,
and eventually engine damage. To pre-
vent 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.
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