Suzuki AY50 - Service Data AY50

13-4 AY50K4/WK4 (’04-MODEL)
SERVICE DATA
AY50
CYLINDER + PISTON + PISTON RING
Unit: mm
CONROD + CRANKSHAFT
Unit: mm
OIL PUMP
CLUTCH
Unit: mm
ITEM STANDARD LIMIT
Piston to cylinder clearance 0.06 – 0.07 0.120
Cylinder bore 41.005 – 41.020
Measure at 20 mm from the top surface.
41.075
Piston diam. 40.940 – 40.955
Measure at 15 mm from the skirt end.
40.885
Cylinder distortion — 0.05
Cylinder head distortion — 0.05
Piston ring free end gap 1st R Approx. 4.0 3.2
2nd R Approx. 4.3 3.4
Piston ring end gap 1st &
2nd
R 0.10 – 0.25 0.80
Piston ring to groove clearance 1st 0.03 – 0.07 —
2nd 0.02 – 0.06 —
Piston pin bore 10.002 – 10.010 10.030
Piston pin O.D. 9.995 – 10.000 9.980
ITEM STANDARD LIMIT
Conrod small end I.D. 14.003 – 14.011 14.040
Conrod deflection — 3.0
Crank web to web width 36.0 ± 0.05 —
Crankshaft runout — 0.05
ITEM SPECIFICATION
Oil pump reduction ratio 30.000 (30/1)
Oil pump discharge rate 0.9 – 1.1 ml
for 5 minutes at 3 000 r/min
ITEM STANDARD LIMIT
Clutch wheel I.D. 110.00 – 110.15 110.50
Clutch shoe thickness 3.0 2.0
Clutch engagement 3 300 ± 200 r/min —
Clutch lock-up 4 500 ± 300 r/min —