KEEWAY 500ATV, Service Manual

Page: 100 / 218

6. Engine Removal;Inspection & Installation
6-38
5.4.1 Piston check
1. The 90 ° in the piston pin, piston 12 mm
diameter of piston position measurement
2.The diameter of piston standard
91.96-91.98 mm
3. Measuring the clearance between the piston and cylinder
●If it is not within the scope of specifications,
please put the piston, piston cylinder,
the piston pin as a whole to change.
4. Standard clearance
0.02-0.065 mm
5.5 Piston check
1.Along the entire circumference measurement to
the clearance between the piston ring groove
●
If more than specification limits, please the
piston, piston, piston pin as a whole to
change.
The first line of gas ring standard clearance ：
0.02-0.06 mm
The second way gas ring standard clearance
：
0.015-0.06 mm
maximum clearance
： 0.11 mm
2. As shown by hand to insert the cylinder
piston,
through the live plug push into the bottom
of the piston stroke.
3. The gap with the end of the piston ring
gauge measurement gap.
4. If more than specification limits, please the
piston, piston, piston pin as a whole to
change.
The first line of gas ring end gap standard 0.2-0.4 mm
。
The second way gas ring end gap standard 0.20-0.35 mm
5. The most main gap
：
1.0 mm