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Yamaha YZ250 2022 User Manual

Yamaha YZ250 2022
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CDI MAGNETO
5-16
EAM30562
REMOVING THE ROTOR
1. Remove:
Rotor nut “1”
Washer “2”
TIP
While holding the rotor with the rotor holding tool
“3”, loosen the rotor nut.
2. Remove:
Rotor “1”
(with the flywheel puller “2”)
Woodruff key
TIP
When installing the flywheel puller, turn it coun-
terclockwise.
EAM30563
CHECKING THE CDI MAGNETO
1. Check:
Rotor inner surface “a”
Stator outer surface “b”
Damage Inspect the crankshaft runout and
crankshaft bearing.
If necessary, replace CDI magneto and/or
stator.
EAM30564
CHECKING THE WOODRUFF KEY
1. Check:
Woodruff key “1”
Damage Replace.
EAM30565
INSTALLING THE CDI MAGNETO
1. Install:
Stator “1”
Stator coil screw “2”
TIP
Temporarily tighten the screw at this point.
2. Install:
Woodruff key “1”
Rotor “2”
TIP
Clean the tapered portions of the crankshaft
Rotor holding tool
90890-01235
Universal magneto and rotor
holder
YU-01235
Flywheel puller
90890-01189
Flywheel puller
YM-01189

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Yamaha YZ250 2022 Specifications

General IconGeneral
Engine Type249cc liquid-cooled 2-stroke; reed-valve inducted
Bore x Stroke66.4mm x 72.0mm
Compression Ratio8.9~10.6:1
IgnitionCDI
Transmission5-speed; multiplate wet clutch
Final DriveChain
Suspension RearKYB® single shock; fully adjustable, 12.4-in travel
Brakes FrontHydraulic disc, 270mm
Tires Front80/100-21
Tires Rear110/90-19
Seat Height38.2 in
Wheelbase58.5 in
Ground Clearance14.2 in
Fuel Capacity2.1 gal
Wet Weight227 lb
Suspension FrontKYB® inverted fork; fully adjustable, 11.8-in travel
Brakes RearHydraulic disc, 245mm

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