Installation - Yamaha SX500D Supplementary Service Manual

DRIVE CHAIN HOUSING
INSPECTION
1. Measure:
S 14 link section a of the drive chain
Using a spring scale, pull on the drive chain
with 36 kg ( 80 lbs) of force b .
Out of specification ³ Replace the drive
chain.
Maximum 14 link drive chain
section length:
133.35 mm (5.25 in)
Limit 137.35 mm ( 5.41 in)
NOTE:
S Measure the length between drive chain pin 1
and 15 as shown.
S Perform this neasurement at two or three dif-
ferent places.
If replacement is necessary, always replace the
chain and the sprockets as a set.
2. Inspect
S Drive chain 1
Stiffness ³ Clean and lubricate or replace.
S Drive chain plates 2
Damage/wear ³ Replace the drive chain.
Cracks ³ Replace the drive chain.

INSTALLATION

During installation, pay attention to the following
point:
A Make sure that the bearing seals face to-
wards the drive chain, as shown.
B Properly install the rubber seal onto the drive
chain housing, making sure that these are no
gaps.
C Be sure to install the spacers in their original
positions of the brake disc and jackshaft will
stick.
D 0.3 mm (0.012 in)
: ESSO beacon 325 grease or Aeroshell
grease #7A
–37–
POWR
TR