PRIMARY SHEAVE AND DRIVE V-BELT
SCH4230
SCH4240
SCH4250
4-10
INSTALLATION
1. Install:
•
Primary sheave assembly
CAUTION:
Be sure to remove any oil or grease from the
tapered portion of the crankshaft and spider us-
ing a cloth dampened with thinner.
2. Apply:
•
YAMALUBE 2-cycle oil or an equivalent grease
(to threads of primary sheave bolt)
3. Tighten:
•
Bolt (primary sheave) 1
Tightening steps:
•
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 (12.0 m · kg, 85 ft · lb)
•
Loosen the bolt (primary shave) completely.
•
Retighten the bolt (primary sheave) to specifica-
tion.
Bolt (primary sheave) 1:
60 Nm (6.0 m · kg, 43 ft · lb)
4. Adjust:
•
V-belt position
Refer to "DRIVE V-BELT" in CHAPTER 2.
•
Sheave distance
•
Sheave offset
•
Secondary sheave free play (clearance)
Refer to "SHEAVE DISTANCE AND OFFSET
ADJUSTMENT" in CHAPTER 2.
POWR
TR