Polaris msx 110 Service Manual page 93

ENGINE DISASSEMBLY / ASSEMBLY
Engine Inspection Procedures
Balance Shaft Inspection
Measure balance shaft runout at several locations.
Out of specification: Replace balance
S
shaft
Measure bearing diameter.
Out of specification: Replace balance shaft
S
Piston Inspection
Measure piston diameter.
Out of specification: Replace piston
S
4.38
15mm
2004 Four Stroke PWC Service Manual