Drive Belt And Rear Sprocket - Buell 2005 P3 Service Manual

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DRIVE BELT AND REAR SPROCKET

GENERAL
Drive belt tension is not adjustable. Replace the belt and
sprocket if out of specification.
NOTE
When a drive belt is replaced for any reason other than stone
damage, it is recommended that the transmission and rear
sprockets also be replaced to increase the longevity of the
new drive belt. In the case of stone damage, inspect sprock-
ets for damage and replace as required.
CLEANING
Use only mild soap and water spray solution to clean drive
belt. Dry thoroughly. Do not immerse belt in solution.
INSPECTION
Checking Belt Deflection
NOTES:
Vehicle must be at room temperature and dry to obtain a cor-
rect measurement.
There are tight and loose spots during rear wheel rotation
that affect belt deflection. For a more precise measurement,
take three deflection readings, rotating the rear wheel
between measurements. Average the three readings for a
more precise measurement.
Deflection should be measured with the rear wheel on
the ground and a 160 lb. (72.57 Kg) rider or equivalent
weight sitting on the motorcycle.
Maximum allowable deflection (measured with 10 lbs./
4.5 kg. of force) is 0.5 in. (12.7 mm) at the bottom strand.
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10 lbs (4.5
kg) of force
Figure 1-17. Measuring Belt Deflection
See Figure 1-17. Using BELT TENSION GAUGE (Part No.
HD-35381), apply 10 lbs (4.5 kg) of force at the midpoint of
the belt's appropriate strand. The maximum allowable deflec-
tion is 0.5 in. (12.7 mm) at the bottom strand.
Replace belt and drive sprocket that exceed maximum
allowable deflection.
11 1
WARNING
Be sure wheel and brake caliper are aligned. Riding with
a misaligned wheel or brake caliper can cause the brake
disc to bind and lead to loss of control, which could
result in death or serious injury. (00050a)
Rear Sprocket
1. See Figure 1-18. Inspect each tooth of rear sprocket for:
a. Major tooth damage.
b. Gouges caused by hard objects.
2. Replace rear sprocket if major tooth damage exists.
a0136x6x
4
3
1. Rear sprocket
2. Drive belt
3. Transmission sprocket
4. Sprocket cover
Figure 1-18. Drive Belt Assembly
Drive Belt
See Figure 1-19. Inspect drive belt for:
Cuts or unusual wear patterns.
Outside edge bevelling (8). Some bevelling is common,
but it indicates that sprockets are misaligned.
Outside ribbed surface for signs of stone puncture (7). 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 nylon layer and polyethylene layer).
This condition will result in belt failure and indicates worn
transmission sprocket teeth. Replace belt and transmis-
sion sprocket.
Signs of puncture or cracking at the base of the belt
teeth. Replace belt if either condition exists.
Replace belt if conditions 2, 3, 6 or 7 (on edge of belt)
exist.
NOTE
Condition 1 is not grounds for replacing the belt, but it should
be watched as it may develop into condition 2 or 3 resulting in
a need for belt replacement.
2005 Buell P3: Maintenance
1.12
WARNING
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2
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