CRANKSHAFT AND CYLINDER BODY
5-35
E
POWR
4. Check:
•
Free play (when piston pin is in
place of the piston).
There should be no noticeable play.
Free play exists
→
Replace the pin
and/or piston.
CHECKING THE PISTON RINGS
NOTE:
• Before checking the piston rings, be
sure to check the cylinder body.
• Piston rings should be replaced as a set
(per piston).
1. Check:
•
Piston ring
Broken/damage
→
Replace.
2. Measure:
•
Piston ring end gap
(use a thickness gauge)
Out of specification
→
Replace.
Piston ring end gap
0.20 - 0.35 mm (0.0079 - 0.0137 in)
Piston ring end gap limit
0.55 mm (0.022 in)
Measuring point “H”
15 mm (0.591 in)
a
Содержание 25BMH
Страница 48: ...FEATURES AND BENEFITS GEN INFO 1 12 E COOLING SYSTEM Fig 7 ...
Страница 49: ...1 12 CARACTERISTIQUES ET AVANTAGES GEN INFO F ...
Страница 50: ...1 12 MERKMALE UND VORTEILE GEN INFO D ...
Страница 51: ...1 12 CARACTERÍSTICAS Y VENTAJAS GEN INFO ES ...
Страница 92: ...MAINTENANCE SPECIFICATIONS SPEC 2 8 E DIMENSIONS ...
Страница 156: ...GENERAL CHK ADJ 3 26 E NOTE Grease the inner cable and the lock nut 2 Apply Yamaha grease D ...
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Страница 446: ...Printed on recycled paper Printed in Japan Oct 2000 1 9 1 25BMH 30HMH YAMAHA MOTOR CO LTD ...