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PRIMARY SHEAVE AND DRIVE V-BELT
SDN4220
SDN4230
SDN4240
4-8
INSTALLATION
1. Install:
•
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:
•
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 m • kg, 85 ft • lb)
•
Loosen the bolt (primary shave) completely.
•
Retighten the bolt (primary sheave) to specifi-
cation.
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 freeplay (clearance)
Refer to "SHEAVE DISTANCE AND OFFSET
ADJUSTMENT" in CHAPTER 2.
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