Buell 2002 X1 Handbook page 148

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11. Valve heads should have a seating surface width of
0.040-0.062 in. (1.016-1.575 mm), and should be free of
pit marks and burn spots. The color of carbon on exhaust
valves should be black or dark brown. White or light buff
carbon indicates excessive heat and burning.
12. Valve seats are also subject to wear, pitting, and burning.
Resurface valve seats whenever valves are refinished.
13. Clean valve guides by lightly honing with VALVE GUIDE
HONE (Part No. HD-34723).
14. Scrub guides with VALVE GUIDE BRUSH (Part No. HD-
34751) and hot soapy water. Measure valve stem outer
diameter and valve guide inner diameter. Check mea-
surements against SERVICE WEAR
15. Inspect spark plug threads for damage. If threads in
head are damaged, a special plug type insert can be
installed using a 12 mm spark plug repair kit.
16. Inspect valve springs for broken or discolored coils.
b0323x3x
Figure 3-16. Checking Spring Free Length
17. See Figure 3-16. Check free length and compression
force of each spring. Compare with
LIMITS. If spring length is shorter than specification or if
spring compression force is below specification, replace
spring.
18. Examine push rods, particularly the ball ends. Replace
any rods that are bent, worn, discolored or broken.
19. See Figure 3-17. Check head gasket surface on head for
flatness. Machine or replace any head which exceeds
SERVICE WEAR LIMIT of 0.006 in. (0.152 mm).
Rocker Arms and Bushings
1. See Figure 3-18. To replace worn bushings, press or
drive them from the rocker arm. If bushing is difficult to
remove, turn a 9/16-18 tap into bushing. From opposite
side of rocker arm, press out bushing and tap.
2. Press replacement bushing into rocker arm, flush with
arm end, and split portion of bushing towards top of arm.
3. Using remaining old bushing as a pilot, line ream new
bushing with ROCKER ARM BUSHING REAMER (Part
No. HD-94804-57).
4. Repeat for other end of rocker arm.
3-16
6609
LIMITS.
2411a
SERVICE WEAR
9/16 in. -18 tap
Figure 3-17. Checking Gasket Surface
Figure 3-18. Removing Rocker Arm Bushing
2002 Buell X1: Engine