Buell S1 Lightning Workshop Manual page 155

ASSEMBLY
1
CAUTION
Make sure all lapping compound is removed from cylin-
der head and valves after lapping is completed. If lapping
compound contaminates any internal engine compo-
nents or engine oil, excessive engine wear and damage
may result.
1. Wash cylinder head and valves in warm, soapy water to
remove all lapping compound.
2. Scrub valve guide bores with
(Part No. HD-34751) and hot, soapy water.
3. Blow dry with compressed air.
4. Apply a liberal amount of engine oil to the valve stem.
5. See Figure 3-24. Insert valve into guide and install lower
collar (4).
6. See Figure 3-25. Place a protective sleeve over the valve
stem keeper groove. Coat the sleeve with oil and place a
new seal over the valve stem.
1
CAUTION
Always use a protective sleeve on the valve stem
keeper groove when installing valve stem seal. If the
seal is installed without using the protective sleeve,
the seal will be damaged.
Do not remove valve after seal is installed. Other-
wise, sharp edges on keeper groove will damage
seal.
7. See Figure 3-24. Tap the seal onto the guide using the
VALVE SEAL INSTALLATION TOOL (Part No. HD-
34643A) and DRIVER HANDLE (Part No.
The seal is completely installed when the tool touches
the lower collar (4).
8. See Figure 3-9. Install valve springs (5, 6) and upper col-
lar (8).
9. Compress springs with VALVE SPRING COMPRESSOR
(Part No. HD-34736B).
10. Insert keepers (7) into upper collar (8), making sure they
engage groove in valve stem. The keeper gaps should be
equal.
11. Release and remove VALVE SPRING COMPRESSOR.
12. Repeat Steps 4-11 for the remaining valve(s).
NOTE
If front isolator mount was removed from front cylinder, rein-
stall in the following manner.
13. Coat new bolts with LOCTITE THREADLOCKER 262
(red). Tighten bolts to 73-78 ft-lbs (98.9-105.7 Nm).
VALVE GUIDE BRUSH
HD-34740).
b0172x3x
5
1. Valve seal 3.
installation tool 4.
2. Driver handle 5.
Figure 3-24. Valve Seal Installation
5686
Protective sleeve
Figure 3-25. Valve Guide Seal Protector Sleeve
2
1
3
4
Valve stem seal
Lower collar
Valve guide
3-19