Installation - Yamaha VK540EF Service Manual

PRIMARY SHEAVE AND DRIVE V-BELT
4-9
ESS00123

INSTALLATION

1. Install:
S Primary sheave assembly
CAUTION:
Be sure to remove any oil or grease from the
tapered portion of the crankshaft and spider
using a cloth dampened with thinner.
2. Apply:
S YAMALUBE 2-cycle oil or an equivalent
grease (to threads of primary sheave bolt)
3. Tighten:
S Bolt (primary sheave) 1
Tightening steps:
S Hold the primary sheave 3 using the primary
sheave holder 2 and tighten the bolt (primary
sheave) to specification.
Primary sheave holder:
90890-01701, YS-01880
Bolt (primary sheave) 1 :
(initial tightening)
120 Nm (12 mSkg, 87 ftSlb)
S Loosen the bolt (primary sheave) completely.
S Retighten the bolt (primary sheave) to specifi-
cation.
Bolt (primary sheave) 1 :
60 Nm (6.0 mSkg, 43 ftSlb)
4. Adjust:
S V-belt position
Refer to "DRIVE V-BELT" in CHAPTER 2.
S Sheave distance
S Sheave offset
S Secondary sheave freeplay (clearance)
Refer to "SHEAVE DISTANCE AND OFF-
SET ADJUSTMENT" in CHAPTER 2.
POWR
TR