Yamaha MX800V - Page 131

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SPECIFICATIONS
MAINTENANCE SPECIFICATIONS
Limit (Intake) 1.6 mm (0.063 in)
Limit (Exhaust) 1.6 mm (0.063 in)
Valve stem runout limit 0.01 mm (0.0004 in)
Valve guide
Guide inside diameter (Intake) 6.000–6.012 mm (0.2362–0.2367 in)
Guide inside diameter (Exhaust) 6.000–6.012 mm (0.2362–0.2367 in)
Stem to guide clearance (Intake) 0.08 mm (0.0031 in)
Stem to guide clearance
(Exhaust)
0.10 mm (0.0039 in)
Valve clearance (cold)
Intake 0.02–0.2 mm (0.0008–0.01 in)
Exhaust 0.02–0.2 mm (0.0008–0.01 in)
Push rod:
Runout limit 0.3 mm (0.0118 in)
Rocker arm:
Rocker arm shaft hole inside
diameter (Intake)
12.000–12.018 mm (0.4724–0.4731 in)
Rocker arm shaft hole inside
diameter (Exhaust)
12.000–12.018 mm (0.4724–0.4731 in)
Rocker arm shaft diameter
(Intake)
11.981–11.991 mm (0.4717–0.4721 in)
Rocker arm shaft diameter
(Exhaust)
11.981–11.991 mm (0.4717–0.4721 in)
Oil clearance 0.08 mm (0.0031 in)
Valve spring:
Valve spring free length (Intake) 37.1 mm (1.4606 in)
Valve spring free length
(Exhaust)
35.6 mm (1.4016 in)
Limit (Intake) 35.25 mm (1.3878 in)
Limit (Exhaust) 33.82 mm (1.3315 in)
Installed length (Intake) 29.3 mm (1.1535 in)
Installed length (Exhaust) 29.0 mm (1.1417 in)
Installed compression spring
force (Intake)
67.7 N (6.90 kgf, 15.2 lbf)
Installed compression spring
force (Exhaust)
118.1 N (12.0 kgf, 26.5 lbf)
Tilt limit 1.7 mm (0.0669 in)
Fuel pump:
Pump type Mechanical