Recoil Starter; Fittings And Fasteners - Yamaha MZ250 Service Manual

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a b
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PERIODIC MAINTENANCE
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a b
2-17
ADJUSTING THE ENGINE SPEED
1. Warm up the engine for a few minutes.
2. Attach:
9 Digital tachometer 1
Digital tachometer:
YU-39951-B, 90890-06760
3. Adjust:
9 Engine speed
Adjustment steps:
a. Turn the throttle stop screw 1 in direc-
tion a or b until the engine speed is
obtained.
TIP
There are two different types of the throttle
stop screws. Adjust the engine speed accord-
ing to appropriate illustration.
Engine speed:
Refer to "SPECIFICATIONS" in
the Supplementary service
manual.
Direction a
Engine speed is decreased.
Direction b
Engine speed is increased.

RECOIL STARTER

1. Check:
9 Recoil starter operate smoothly
Rough movement → Replace the
defective part(s).
(Refer to "RECOIL STARTER" on 3-9)

FITTINGS AND FASTENERS

1. Check:
9 All fittings and fasteners
Looseness → Tighten.
Rough movement → Replace the
defective part(s).
Damage/pitting → Replace.
CHK
ADJ