Suzuki DF 25 Service Manual page 169

7-52 POWER UNIT
SELECTIN OF MAIN BEARING
Whenever a bearing requires replacement, select a new bear-
ing according to following procedure.
(1) First check journal diameter.
As show in figure, upper (flywheel side) crank web of No.1
cylinder has four (4) stamped numerals.
The numerals (1, 2 & 3) represent the journal diameters
shown below.
Numeral stamped
1
2
3
(2) Next, check bearing holder inside diameter without bear-
ing.
As shown in figure, the STBD side of cylinder block has four
(4) stamped codes letters.
The letters (A, B & C) represent the bearing holder inside
diameter shown below.
Code
A
B
C
Journal diameter
39.994 – 40.000 mm
(1.5746 – 1.5748 in.)
39.988 – 39.994 mm
(1.5743 – 1.5746 in.)
39.982 – 39.988 mm
(1.5741 – 1.5743 in.)
Crank bearing holder inside
diameter ( w / o bearing )
44.000 – 44.006 mm
(1.7323 – 1.7325 in.)
44.006 – 44.012 mm
(1.7325 – 1.7328 in.)
44.012 – 44.018 mm
(1.7328 – 1.7330 in.)
No. 2 Jornal code
Flywheel
side
No. 3 Jornal code
No. 4 Holder code
No. 3 Holder code
No. 2 Holder code
No. 1 Holder code
Flywheel
side
No. 1 Jornal code
No. 4 Jornal code