Checking The Piston/Cylinder Mounting Clearance (200 Duke); Checking The Oil Pump (200 Duke); Checking The Oil Pressure Regulator Valve (200 Duke) - KTM 125 DUKE EU Repair Manual

16 ENGINE

16.4.43 Checking the piston/cylinder mounting clearance (200 Duke)

16.4.44 Checking the oil pump (200 Duke)

16.4.45 Checking the oil pressure regulator valve (200 Duke)

–
Measure the piston at the piston skirt, at right angles to the piston pin, at a
distance
B
Guideline
Distance
Piston - diameter
304538-10
–
Check/measure the cylinder. (
–
Check/measure the piston. (
–
The piston/cylinder mounting clearance is the result of the cylinder bore diameter
minus the piston diameter.
Guideline
Piston/cylinder - mounting clearance
New condition
305905-10 Wear limit
–
With special tool
and between the external rotor and the oil pump housing.
Feeler gauge (59029041100) (
Oil pump
Play between external rotor and
internal rotor
Oil pump
304531-10
Play between external rotor and oil
pump housing
» If the play exceeds the specification:
–
Change the oil pump and, if necessary, the oil pump housing.
–
Check axial play
Oil pump
Axial play
» If the play exceeds the specification:
–
Change the oil pump and, if necessary, the oil pump housing.
304532-10
–
Remove washer
–
Remove spring
–
Measure the length of spring
Oil pressure regulator valve - minimum
spring length
» If the measured length is less than the specification:
–
Change the spring.
–
Check control piston
304533-10
.
B
p. 145)
p. 146)
, check the play between the internal rotor and external rotor
1
p. 253)
of the oil pump.
A
.
1
.
2
.
2
for damage and wear.
3
9 mm (0.35 in)
71.965... 71.977 mm (2.83326...
2.83373 in)
0.039... 0.062 mm (0.00154...
0.00244 in)
0.08 mm (0.0031 in)
0.10... 0.20 mm (0.0039...
0.0079 in)
0.09... 0.20 mm (0.0035...
0.0079 in)
0.10... 0.25 mm (0.0039...
0.0098 in)
26.00 mm (1.0236 in)
147