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Yamaha YP250 Service Manual

Yamaha YP250
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4-40
A.C. MAGNETO AND STARTER CLUTCH
ENG
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NOTE:
NOTE:
YP402163
STARTER DRIVE GEAR INSPECTION
1. Inspect:
S Starter idle gear teeth
S Starter drive gear teeth
S Starter wheel gear teeth
Burrs/chips/roughness/wear Re-
place.
2. Check:
S Starter clutch operation
Push the dowel pins to the arrow direction.
Unsmooth operation Replace.
Checking steps:
D Hold the starter clutch.
D When turning the starter wheel gear clock-
wise
A
, the starter clutch and the starter
wheel gear should be engaged.
D If not, the starter clutch is faulty. Replace it.
D When turning the starter wheel gear counter-
clockwise,
B
, it should turn freely.
D If not, the starter clutch is faulty. Replace it.
YP404131
A.C. MAGNETO ROTOR INSTALLATION
1. Install:
S Starter wheel gear
1
S Woodruff key
2
Install the starter wheel gear
1
, then install the
woodruff key
2
.
2. Install:
S Plain washer
S Rotor
1
D Clean the tapered portion of the crankshaft
and the rotor hub.
D When installing the magneto rotor, make
sure the woodruff key is properly seated in
the key way of the crankshaft.

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Yamaha YP250 Specifications

General IconGeneral
Fuel SystemFuel Injection
Ignition SystemTCI
TransmissionV-Belt Automatic
Front SuspensionTelescopic Fork
Rear SuspensionUnit Swing
Front Tyre120/70-14
Wheelbase1, 540 mm
Ground Clearance140 mm
EngineLiquid-cooled, 4-stroke, SOHC, 4-valve
Front BrakeHydraulic Single Disc
Rear BrakeHydraulic Single Disc
Rear Tyre140/

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