(1) LIFTER PIECE
(2) THRUST WASHER
(3) THRUST NEEDLE BEARING
Check the needle bearing operation by turning the
thrust washer on the lifter piece.
Replace the needle bearing if it turn smoothly.
4-48
Engine Servicing
(1) THRUST WASHER (2) CLUTCH OUTER
(3) NEEDLE BEARING (4) CLUTCH OUTER GUIDE
Remove the right crankcase cover (page 4-51).
Remove the thrust washer, clutch outer, needle
bearing and clutch outer guide.
(1) CLUTCH CENTER (2) CLUTCH OUTER
(3) OUTER GUIDE (4) NEEDLE BEARING
Inspection
Check the following items (specifications; 2-2).
• Clutch outer for wear, cracks or indentation by the
clutch discs.
• Clutch center grooves for damage, crack or inden-
tation by the clutch plates.
• Clutch outer needle bearing for wear or damage.
• Clutch spring free length
• Clutch disc thickness
• Clutch plate warpage
• Clutch outer I.D.
• Clutch outer guide I.D. and O.D.
• Clutch pressure plate for wear or damage
• Mainshaft O.D. at clutch outer guide
(2)
(4)
(3)
(1)
(2)
(1)
(4)
(3)
(1)
(3)
(2)
Summary of Contents for NSF250R 2012
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