Checking Middle Gear Backlash; Transmission And Gearshift Specifications; Transmission, Shift Mechanism And Middle Gear Torque Specifications - Yamaha V star 1100 Owner's Manual

202
f. Turn the universal joint over and repeat
substeps d-f for the opposite bearing.
15. Install the bearing housing bolts (A, Figure 45)
and secure the speed sensor bracket and bearing
housing to the crankcase. Apply Yamaha Bond
1215 or an equivalent sealant to the threads of the
bolts and torque the speed sensor bracket bolts to 25
N•m (18 ft.-lb.).
Inspection
1. Inspect the gear on the end of the middle driven
shaft for galling, pitting or chipped teeth. If there is
any damage replace the middle driven shaft and the
middle drive shaft as a set.
2. Inspect the splines on the middle driven shaft. If
damaged, replace both the middle drive and middle
driven shafts.
Table 1 TRANSMISSION AND GEARSHIFT SPECIFICATIONS
Item
Mainshaft runout
Countershaft runout
Transmission gear ratios
First gear
Second gear
Third gear
Fourth gear
Fifth gear
Primary reduction ratio
Secondary reduction ratio
Middle gear backlash
Table 2 TRANSMISSION, SHIFT MECHANISM AND MIDDLE GEAR TORQUE SPECIFICATIONS
Item
Footrest bracket bolts
Middle drive assembly bearing
retainer nut
Middle drive shaft nut
Shift drum screw
Shift lever clamp bolt
Shift pedal adjuster locknut*
Shift shaft stopper bolt
Speed sensor bracket bolts
*Left-hand threads on rear nut.
3. Inspect the inner splines of the universal joint. If
the splines are damaged, replace the universal joint.
Also inspect the outer splines on the drive shaft.
They may also be damaged.
1. Remove the engine, separate the crankcase, and
disassemble the cases as described in Chapter Five.
2. Install the middle gear backlash band (Figure
49) onto the middle drive shaft assembly.
3. Set a dial gauge against the backlash band so the
plunger sits 68.2 mm (2.69 in.) from the center of
the middle drive shaft. See Figure 50.
4. Rotate the universal joint and read the backlash
on the dial gauge. The middle gear backlash should
be within the range specified in Table 1.
New mm (in.)
–
–
40/17 (2.353)
40/24 (1.667)
36/28 (1.286)
32/31 (1.032)
29/34 (0.853)
78/47 (1.660)
44/47 × 19/18 × 32/11 (2.875)
0.1-0.2 (0.004-0.008)
N•m in.-lb.
64 –
110 –
110 –
4 35
10 89
10 89
22 –
25 –
CHAPTER SEVEN
CHECKING MIDDLE
GEAR BACKLASH
Service limit mm (in.)
0.08 (0.003)
0.08 (0.003)
–
–
–
–
–
–
–
–
ft.-lb.
47
81
81
–
–
–
16
18