Yamaha TMAX TECH MAX 2020 - REMOVING THE CONNECTING RODS; CHECKING THE CRANKSHAFT AND CONNECTING RODS

5-75
CRANKSHAFT
EAS30415
REMOVING THE CONNECTING RODS
The following procedure applies to all of the con-
necting rods.
1. Remove:
• Connecting rod cap “1”
• Connecting rod “2”
• Big end bearing
TIP
Identify the position of each big end bearing so
that it can be reinstalled in its original place.
EAS30419
REMOVING THE CRANKSHAFT JOURNAL
BEARINGS
The following procedure applies to both of the
crankshaft journal bearings.
1. Remove:
• Crankshaft assembly
• Crankshaft journal bearing “1”
TIP
Remove the crankshaft journal bearing using the
plane bearing installer “2”.
TIP
Identify the position of each crankshaft journal
bearing so that it can be reinstalled in its original
place.
EAS30423
CHECKING THE CRANKSHAFT AND
CONNECTING RODS
1. Measure:
• Crankshaft runout
Out of specification  Replace the crank-
shaft.
2. Check:
• Crankshaft journal surface
• Crankshaft pin surface
• Bearing surface
Scratches/wear  Replace the crankshaft.
Plane bearing installer
90890-04139
1
2
Runout limit
0.030 mm (0.0012 in)