Honda WT30XK4 Manual page 13

SERVICE INFORMATION
MAINTENANCE STANDARDS
SERVICE INFORMATION
WT30XK4
Part
Engine Maximum speed (at no load)
Idle speed
Cylinder compression
Cylinder head Warpage
Cylinder Sleeve I.D.
Piston Skirt O.D.
Piston-to-cylinder clearance
Piston pin bore I.D.
Piston pin Pin O.D.
Piston pin-to-piston pin bore
clearance
Piston rings Ring side clearance
Ring end gap
Ring width
Connecting Small end I.D.
rod
Big end side clearance
Big end I.D.
Big end oil clearance
Crankshaft Crank pin O.D.
Crankshaft runout
Cylinder barrel Camshaft bearing I.D.
Crankcase Camshaft bearing I.D.
cover
Valves Valve clearance
Valve stem O.D.
Valve guide I.D.
Guide-to-stem
clearance
Valve seat width
Valve spring free length
Valve spring perpendicularity
Camshaft Cam height
Camshaft O.D.
Carburetor Main jet
Pilot screw opening
Float height
Spark plug Gap
Ignition coil Air gap
Pump impeller Clearance
2-2
Item
3,850 ± 150 min
1,400 ± 150 min
0.50 -0.70 MPa (5.1- 7.1 kgf/cm
73 - 101 psi) / 600 min
77.000 – 77.017 (3.0315 – 3.0322)
76.975 – 76.985 (3.0305 – 3.0309)
0.015 – 0.042 (0.0006 – 0.0017)
18.002 – 18.008 (0.7087 – 0.7090)
17.994 – 18.000 (0.7084 – 0.7087)
0.002 – 0.014 (0.0001 – 0.0006)
Top 0.030 – 0.060 (0.0012 – 0.0024)
Second 0.030 – 0.060 (0.0012 – 0.0024)
Top 0.200 – 0.350 (0.0079 – 0.0138)
Second 0.350 – 0.500 (0.0138 – 0.0197)
Oil (side rail) 0.2 – 0.7 (0.01 – 0.03)
Top 1.160 – 1.175 (0.0457 – 0.0463)
Second 1.160 – 1.175 (0.0457 – 0.0463)
18.005 – 18.020 (0.7089 – 0.7094)
0.1 – 0.4 (0.004 – 0.016)
33.025 – 33.039 (1.3002 – 1.3007)
0.040 – 0.064 (0.0016 – 0.0025)
32.975 – 32.985 (1.2982 – 1.2986)
16.000 – 16.018 (0.6299 – 0.6306)
16.000 – 16.018 (0.6299 – 0.6306)
IN 0.15 ± 0.02 (0.006 ± 0.001)
EX 0.20 ± 0.02 (0.008 ± 0.001)
IN 6.575 – 6.590 (0.2589 – 0.2594)
EX 6.535 – 6.550 (0.2573 – 0.2579)
IN/EX 6.600 – 6.615 (0.2598 – 0.2604)
IN 0.010 – 0.040 (0.0004 – 0.0016)
EX 0.050 – 0.080 (0.0020 – 0.0032)
1.0 – 1.2 (0.04 – 0.05)
39.0 (1.54)
IN 31.895 – 32.195 (1.2557 – 1.2675)
EX 31.616 – 31.916 (1.2447 – 1.2565)
Cam side 15.966 – 15.984 (0.6286 – 0.6293)
Gear side 15.954 – 15.984 (0.6281 – 0.6293)
#88
2 turns out
13.2 (0.52)
0.7 – 0.8 (0.028 – 0.031)
0.2 – 0.6 (0.01 – 0.02)
0.4 – 0.8 (0.016 – 0.031)
Standard
-1
(rpm)
-1
(rpm)
2
,
-1
(rpm)
–
–
–
Unit: mm (in)
Service limit
–
–
–
0.10 (0.004)
77.17 (3.038)
76.85 (3.026)
0.12 (0.005)
18.042 (0.7103)
17.950 (0.7067)
0.08 (0.003)
0.15 (0.006)
0.15 (0.006)
1.0 (0.04)
1.0 (0.04)
1.0 (0.04)
1.140 (0.0449)
1.140 (0.0449)
18.07 (0.711)
1.0 (0.04)
33.07 (1.302)
0.12 (0.005)
32.92 (1.296)
0.1 (0.004)
16.05 (0.632)
16.05 (0.632)
–
–
6.44 (0.254)
6.40 (0.252)
6.66 (0.262)
0.11 (0.004)
0.13 (0.005)
2.0 (0.08)
37.5 (1.48)
1.5° max.
31.795 (1.2518)
31.516 (1.2408)
15.92 (0.627)
15.92 (0.627)
–
–
–
–
–
–