Crankshaft and Connecting Rods
Select the proper bearing insert [A] in accordance with the
combination of the connecting rod and crankshaft coding.
Size Color [B]
Connecting Rod Big End
Inside Diameter Marking
Install the new inserts in the connecting rod and check
insert/crankpin clearance with the plastigage.
Crankshaft Side Clearance Inspection
Insert a thickness gauge [A] between the crankcase main
bearing and the crank web at the No. 2 journal [B] to
If the clearance exceeds the service limit, replace the
crankcase halves as a set.
The upper and lower crankcase halves are machined
at the factory in the assembled state, so the crankcase
halves must be replaced as a set.
Crankshaft Side Clearance
0.05 ∼ 0.20 mm (0.0020 ∼ 0.0079 in.)
Service Limit: 0.40 mm (0.016 in.)
Crankshaft Runout Inspection
Measure the crankshaft runout.
If the measurement exceeds the service limit, replace the
TIR 0.02 mm (0.0008 in.) or less
Service Limit: TIR 0.05 mm (0.002 in.)