Suzuki DF 25 Service Manual page 163

7-46 POWER UNIT
CONROD BIG END SIDE CLEARANCE
Measure conrod big end side clearance with conrod installed
on crank pin as shown.
09900-20803 : Thickness gauge
Conrod big end side clearance
Standard : 0.100 – 0.250 mm (0.0039 – 0.0098 in.)
Service limit : 0.350 mm (0.0138 in.)
If measurement exceecs service limit, replace conrod and / or
crankshaft.
Conrod big end width
Standard : 21.950 – 22.000 mm (0.8642 – 0.8661 in.)
Crank pin width
Standard : 22.100 – 22.200 mm (0.8700 – 0.8740 in.)
CRANK PIN
Inspect crank pin for uneven wear or damage.
Measure crank pin for out - of - round or taper with micrometer.
If crank pin is damaged, out - of - round or taper is out of service
limit, replace crankshaft.
09900-20202 : Micrometer
Out -of- round : A – B
Taper : a – b
Out-of-round and taper
Service limit : 0.010 mm (0.0004 in.)
Crank pin diameter
Standard : 35.982 – 36.000 mm (1.4166 – 1.4173 in.)
A a b
B