2007 Buell Firebolt: Drive/Transmission 6-19
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INSTALLATION
NOTE
Prior to installing engine sprocket nut and the clutch hub nut,
the threads on the sprocket shaft, sprocket nut, mainshaft
and clutch hub nut must be thoroughly cleaned to remove any
oil that might contaminate and interfere with the locking
agent.
1. See Figure 6-33. Assemble clutch hub (1) and shell (3)
by sliding inboard end of clutch hub into shell bearing(2)
by hand. No tools are required.
2. Submerge and soak all friction and steel plates in FOR-
MULA+ Primary/Transmission Lubricant for at least five
minutes and assemble clutch pack in sequence in the
clutch hub. See ASSEMBLY and INSTALLATION under
6.4 CLUTCH.
3. Verify that outer thrust washer (4) is installed on trans-
mission shaft.
4. Install the engine sprocket, clutch assembly and primary
chain as a unit into primary chaincase.
5. See Figure 6-34. Install the engine sprocket nut.
a. Install SPROCKET LOCKING LINK (Part No. HD-
38362 for XB9R models and Part No. HD-46283 for
XB12R models).
b. Apply two or three drops of LOCTITE 271 (red) onto
threads of sprocket shaft.
c. Install engine sprocket nut. Tighten to 240-260 ft-lbs
(325.4-352.5 Nm).
NOTE
See Figure 6-35. Washer must be installed with the word “out”
facing the mainshaft nut or transmission may be damaged.
NOTE
New mainshaft nut comes with a chemical lock patch making
it unnecessary to use Loctite with new fastener.
Figure 6-33. Clutch Hub and Shell Assembly
b1061x6x
1. Clutch hub
2. Needle bearing
3. Clutch shell
4. Thrust washer, outer
1
3
4
2
Figure 6-34. Sprocket Locking Link Tool
(Part No. HD-38362 for XB9R models and
Part No. HD-46283 for XB12R models)
Figure 6-35. Mainshaft Nut and Washer
8810
1. Torque wrench
2. Engine sprocket
3. Sprocket locking link (Part No. HD-46283)
2
3
1
1. Mainshaft nut
2. Washer
3. Clutch hub
b1060x6x
3
2
1
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