Hisun HS400 - Page 52

Specifications
2-9
Item
Metric Standard
Service Wear Limit
Valve spring
Inner spring
Free length
IN
EX
Set length (valve
closed)
IN
EX
Compressed pressure
(installed)
IN
EX
Tilt limit *
IN
EX
Direction of winding
(top view)
IN
EX
39.5 mm (1.56 in)
43.0 mm (1.69 in)
32.5 mm (1.28 in)
35.0 mm (1.38 in)
(11.73 - 14.79 kg, 32.61 lb)
(30.09 - 33.15 kg, 66.35 - 73.10 lb)
Clockwise
Counter Clockwise
2.5°/1.4mm(2.5°/.055in)
2.5°/1.6mm(2.5°/.063in)
Piston
Piston to cylinder
clearance
Piston size “D”
Measuring point “H”
Piston off-set
Off-set direction
Piston pin bore inside
diameter
Piston pin outside
diameter
0.05 - 0.07mm (0.0020 - 0.0028 in)
84.45 - 84.47mm(3.3248 - 3.3256 in)
2 mm (0.08 in)
0.5 mm (0.0394 in)
Intake side
20.00 - 20.01 mm (0.7874 -0.7878in)
19.99 - 20.00 mm(0.7870 - 0.7874
in)
0.15 mm (0.0059 in)