6885J11
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Maintenance specification
Power unit (85A models)
(*1) Measuring conditions:
Ambient temperature 20°C (68°F), wide open throttle, with spark plugs removed from all cylinders.
The figures are for reference only.
Item Unit
Model
85AEHD 85AED 85AET
Power unit
Minimum compression kPa 410
pressure (*1) at electric starter (kgf/cm
2
, psi) (4.1, 59)
Cylinder head
Warpage limit mm (in) 0.1 (0.0039)
(lines indicate straightedge
position)
Cylinder
Bore size mm (in) 82.000–82.020 (3.2283–3.2291)
Piston
Piston diameter (D) mm (in) 81.935–81.955 (3.2258–3.2266)
Measuring point (H) mm (in) 20.0 (0.79)
Piston clearance mm (in) 0.065–0.070 (0.0026–0.0028)
(reference data)
Piston pin boss bore mm (in) 19.904–19.915 (0.7836–0.7841)
Oversize piston
1st mm (in) 0.25 (0.010)
2nd mm (in) 0.50 (0.020)
Oversize piston diameter
1st mm (in) 82.185–82.205 (3.2356–3.2364)
2nd mm (in) 82.435–82.455 (3.2455–3.2463)
Piston pin
Outside diameter mm (in) 19.895–19.900 (0.7833–0.7835)
6885J11_02_1 04.1.1 0:43 Page 11
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