Insert a thickness gauge [A] between the big end and either crank web to determine clearance.
Connecting Rod Big End Side Clearance
Standard: 0.13 
0.38 mm
(0.0051 
0.0150 in.)
Service Limit: 0.58 mm (0.023 in.)
If the clearance exceeds the service limit, replace the connecting rod with new one and then check clearance again.
If the clearance is too large after connecting rod replacement, the crankshaft also must be replaced.
Connecting Rod Twist Inspection
Connecting Rod Big End
Bearing Insert/Crankpin Wear InspectionShift Pedal Installation
Install the rubber damper to the shift pedal.
Turn the chamfered side to inside.
Assemble:
Shift Lever [A] and Locknut [B] (Left-hand Thread)
Shift Pedal [C] and Locknut [D]
Tie-Rod [E]
Turn the grooved end [F] of the tie-rod to the shift lever.
Apply grease to the sliding ...
Piston Wear Inspection
Measure the outside diameter [A] of each piston 5 mm
(0.20 in.) [B] up from the bottom of the piston at a right
angle to the direction of the piston pin.
If the measurement is under service limit, replace the piston.
Piston Diameter
Standard: 75.959 75.974 mm
(2.9905 2.9911 in.)
...
Radiator Inspection
Remove the radiator (see Radiator and Radiator Fan Removal).
Check the radiator core.
If there are obstructions to air flow, remove them.
If the corrugated fins [A] are deformed, carefully
straighten them.
If the air passages of the radiator core are blocked more
than 20% by unremovable ...