Gx340 - Honda GX240RT2 Service And Repair Manual

SERVICE INFORMATION
Part
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
Starter motor Brush length
Mica depth
Charge coil Resistance
Lamp coil Resistance

GX340

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
gx240ut2_gx270ut2_gx340ut2_gx390ut2
Item
IN 0.15 ± 0.02
EX 0.20 ± 0.02
IN 6.575 – 6.590 (0.2589 – 0.2594)
EX 6.535 – 6.550 (0.2573 – 0.2579)
IN/EX 6.600 – 6.612 (0.2598 – 0.2603)
IN 0.010 – 0.037 (0.0004 – 0.0015)
EX 0.050 – 0.077 (0.0020 – 0.0030)
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)
#88
BE21J A: 2 turns out
13.2 (0.52)
0.7 – 0.8 (0.028 – 0.031)
0.2 – 0.6 (0.01 – 0.02)
7.0 (0.28)
1.0 (0.04)
1A 3.00 - 4.00
3A 0.62 - 0.93
10A 0.16 - 0.24
18A 0.10 - 0.30
12V - 15 W 1.04 - 1.56
12V - 25 W 0.30 - 0.46
12V - 50 W 0.29 - 0.44
Item
3,850 ± 150 min
1,400 ± 150 min
0.51 - 0.69 MPa (5.2 - 7.0 kgf/cm
74 - 100 psi) / 600 min
88.000 – 88.017 (3.4646 – 3.4652)
87.965 – 87.985 (3.4632 – 3.4640)
0.015 – 0.052 (0.0006 – 0.0020)
20.002 – 20.008 (0.7875 – 0.7877)
19.994 – 20.000 (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)
Standard
–
Standard
-1
(rpm)
-1
(rpm)
2
,
-1
(rpm)
–
Service
limit
–
–
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)
–
–
–
–
–
3.5 (0.14)
0.2 (0.01)
–
–
–
–
–
–
–
Unit: mm (in)
Service
limit
–
–
–
0.10 (0.004)
88.170
(3.4713)
87.85(3.459)
0.12 (0.005)
20.042
(0.7891)
19.950
(0.7854)
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)