Suzuki Boulevard M50, Service Manual

Page: 93 / 454

ENGINE 3-47
Bearing thickness specification

CONROD/CRANK PIN BEARING ASSEMBLY
• When fitting the bearing to the bearing cap and conrod, be
sure to fix the stopper part
1
first and press in the other end.
• Apply molybdenum oil solution to the crank pin and bearing
surface.

MOLYBDENUM OIL SOLUTION
• When mounting the conrod on the crankshaft, make sure that
I.D. code
2
of the conrod faces rearward.
• Tighten the conrod fitting nuts with specified torque after
applying engine oil to the nut thread.

Conrod nut
Initial tightening torque: 25 N·m (2.5 kgf-m, 18.0 lb-ft)
Final tightening torque: 51 N·m (5.1 kgf-m, 37.0 lb-ft)
• Check the conrod movement for smooth turning.
Color (Part No.) Thickness
Green
(12164-38E00-0A0)
1.485 – 1.488 mm
(0.0585 – 0.0586 in)
Black
(12164-38E00-0B0)
1.488 – 1.491 mm
(0.0586 – 0.0587 in)
Brown
(12164-38E00-0C0)
1.491 – 1.494 mm
(0.0587 – 0.0588 in)
Yellow
(12164-38E00-0D0)
1.494 – 1.497 mm
(0.0588 – 0.0589 in)
Blue
(12164-38E00-0E0)
1.497 – 1.500 mm
(0.0589 – 0.0591 in)
The bearings should be replaced as a set.
Color code
SA
MP
LE