Power unit (85A models)
Item
Power unit
Minimum compression
pressure (*1) at electric starter (kgf/cm
Cylinder head
Warpage limit
(lines indicate straightedge
position)
Cylinder
Bore size
Piston
Piston diameter (D)
Measuring point (H)
Piston clearance
(reference data)
Piston pin boss bore
Oversize piston
1st
2nd
Oversize piston diameter
1st
2nd
Piston pin
Outside diameter
(*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.
6885J11
Unit
85AEHD
kPa
2
, psi)
mm (in)
mm (in)
82.000–82.020 (3.2283–3.2291)
mm (in)
81.935–81.955 (3.2258–3.2266)
mm (in)
mm (in)
0.065–0.070 (0.0026–0.0028)
mm (in)
19.904–19.915 (0.7836–0.7841)
mm (in)
mm (in)
mm (in)
82.185–82.205 (3.2356–3.2364)
mm (in)
82.435–82.455 (3.2455–3.2463)
mm (in)
19.895–19.900 (0.7833–0.7835)
Maintenance specification
Model
85AED
85AET
410
(4.1, 59)
0.1 (0.0039)
20.0 (0.79)
0.25 (0.010)
0.50 (0.020)
1
2
3
4
5
6
7
8
9
2-10