Honda GX240RT2 Service And Repair Manual page 307

SERVICE INFORMATION
MAINTENANCE STANDARDS
SERVICE INFORMATION
iGX240UT2
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 rod Small end I.D.
Big end side clearance
Big end I.D.
Big end oil clearance
Crankshaft Crankpin O.D.
Crankshaft runout
Cylinder barrel Camshaft bearing I.D.
(Crankcase)
Crankcase cover Camshaft bearing I.D.
Valves Valve clearance
Valve stem O.D.
Valve guide I.D.
Guide-to-stem clear-
ance
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
Starter motor Brush length
Mica depth
Charge coil Resistance
Power coil Resistance
*: This figure is caused by basic program in the ECM. The engine speed is different depending on the program in the ECM.
2-2
gx240ut2_gx270ut2_gx340ut2_gx390ut2
Item
3,600 ± 150 min
1,400 ± 150 min
1.31 MPa (13.4 kgf/cm
1,400 min
77.000 – 77.017 (3.0315 – 3.0322)
76.975 – 76.985 (3.0305 – 3.0309)
0.015 – 0.042 (0.0006 – 0.0016)
18.002 – 18.008 (0.7087 – 0.7090)
17.994 – 18.000 (0.7872 – 0.7874)
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 (0.2588 – 0.2594)
EX 6.535 – 6.550 (0.2572 – 0.2578)
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 31.945 – 32.145 (1.2577 – 1.2655)
EX 31.666 – 31.866 (1.2467 – 1.2546)
15.966 – 15.984 (0.6286 – 0.6293)
BE93B A: #82
BE93B A: 1 turn out
13.2 (0.52)
0.7 – 0.8 (0.028 – 0.031)
0.2 – 0.6 (0.01 – 0.02)
10 (0.4)
QZX4 type
5.1 – 7.7
(0.9 A)
QZA2, QZAV
0.4 – 0.8
types (2.9 A)
2.9 – 4.5
Standard
(rpm)*
-1
(rpm)
-1
, 190 psi)/
2
(rpm)
-1
–
–
–
–
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)
17.95 (0.707)
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)
0.10 (0.004)
0.12 (0.005)
2.0 (0.08)
37.5 (1.48)
1.5° max.
31.35 (1.234)
31.35 (1.234)
15.92 (0.627)
–
–
–
–
–
6 (0.2)
0.2 (0.01)
–
–
–