Checking The Final Drive Oil For Contamination And Checking The Shaft Drive For Leaks; Measuring The Final Gear Backlash - Yamaha FJR1300A(D) Service Manual

EAS23570
CHECKING THE FINAL DRIVE OIL FOR
CONTAMINATION AND CHECKING THE
SHAFT DRIVE FOR LEAKS
1. Drain:
• Final gear oil
(from the final gear case)
Refer to "CHANGING THE FINAL GEAR
OIL" on page 3-29.
2. Check:
• Final gear oil
Large amount of metal particles → Check for
bearing seizure.
TIP
A small amount of metal particles in the final
gear oil is normal.
3. Check:
• Shaft drive housing
(for oil leaks)
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a. Thoroughly clean the entire vehicle and then
completely dry it.
b. Apply a leak-locating compound or dry pow-
der spray to the shaft drive.
c. Test ride the vehicle long enough to locate a
leak.
Oil leak → Repair or replace the faulty part(s).
TIP
• What may appear to be an oil leak on a new or
fairly new vehicle, may result from the applica-
tion of a rust preventive coating or excessive
seal lubrication.
• Always clean the vehicle and recheck the area
where the leak is thought to originate from.
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1. Oil seal
2. O-ring
A. Forward
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EAS23580

MEASURING THE FINAL GEAR BACKLASH

1. Secure the final drive assembly in a vise.
2. Remove:
• Final gear oil drain bolt
3. Drain:
• Final gear oil
(from the final drive assembly)
4. Measure:
• Final gear backlash
Out of specification → Adjust.
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a. Install the ring gear fix bolt (M14) "1", into the
final gear oil drain hole.
4-112
SHAFT DRIVE
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Final gear backlash
0.22–0.45 mm (0.0087–0.0177 in)
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Ring gear fix bolt (M14)
90890-01524
YM-01524
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