Drive Belt Maintenance; General; Inspection; Rear Sprocket - Buell 2009 XB Series Service Manual

HOME

DRIVE BELT MAINTENANCE

GENERAL

The drive belt tension on a new belt will loosen after approxim-
ately 1000 miles (1600 km). The drive belt tension is automat-
ically set by the idler pulley. Axle alignment is not adjustable.
Inspect drive belt and idler pulley assembly after first 1000
miles (1600 km) and at every 5000 mile (8000 km) service
interval.

INSPECTION

Rear Sprocket

NOTE
If gouges to rear sprocket are large enough to be harmful, they
will leave a pattern on the belt face.
1. Inspect each tooth of rear sprocket for:
a. Major tooth damage.
b. Coating chips larger than 0.25 in. (6.35 mm)
missing/removed.
c. Gouges caused by hard objects.
2. Replace rear sprocket if major tooth damage or loss of
coating in an area 0.25 in. (6.35 mm) or larger occurs.

Drive Belt

Refer to Table 1-10. Inspect drive belt for:
Cuts or unusual wear patterns on both sides of belt.
Outside edge bevelling. Some bevelling is common, but
it indicates that sprockets are misaligned.
Outside surface for signs of stone puncture. If
cracks/damage exists near edge of belt, replace belt
immediately. Damage to center of belt will require belt
replacement eventually, but when cracks extend to edge
of belt, belt failure is imminent.
Inside (toothed portion) of belt for exposed tensile cords
(normally covered by facing fabric). This condition will
1-30 2009 XB Service: Maintenance
result in belt failure and indicates worn transmission
sprocket teeth. Replace belt and transmission sprocket.
Signs of puncture or cracking at the base of the belt teeth.
Replace belt if either condition exists.

Idler Pulley

See Figure 1-30. Inspect idler pulley for signs of uneven wear.
Excessive lateral side play of 0.020 in. (0.5 mm) or roughness
indicates worn bearings. Replace idler pulley as an assembly.
See 5.7 DRIVE BELT AND IDLER
sm00093
Figure 1-30. Measuring Lateral Side Play on Idler Pulley

CLEANING

Keep dirt, grease, oil, and debris off the belt, idler pulley and
sprockets. Clean the drive belt as required by spraying with a
solution of mild soap and water. Dry thoroughly. Do not
immerse belt in solution. Do not direct pressurized water on
belt.
1.10
PULLEY.