Honda GX120K1 Manual page 38

SERVICE INFORMATION
PART
Valves Valve
clearance
Stem O.D.
Guide I.D.
Stem
clearance
Seat width
Spring free
length
Camshaft Cam height
Camshaft O.D.
Crankcase Camshaft holder I.D.
cover
Carburetor Main jet
Float height
Pilot screw opening
Spark plug Gap
Spark plug cap Resistance
Ignition coil Resistance
Air gap
Starter motor Brush length
Mica depth
1/2 Reduction Friction disc thickness
(centrifugal Clutch plate warpage
clutch type)
*1: Externally vented carburetor bowl (all types except QXC).
*2: Internally vented carburetor bowl (QXC type only).
*3: Rammer type
*4: U,UT,U1,UT1 types
(Refer to page 6-8 for identification of the carburetor vent type)
2-6
ITEM
IN 0.15±0.02 mm (0.006±0.001 in)
EX 0.20±0.02 mm (0.008±0.001 in)
IN
EX
IN/EX
IN 0.02-0.044 mm (0.0008-0.0017 in)
EX 0.06-0.087 mm (0.0024-0.0034 in)
IN/EX
IN
EX
3 turns out
0.7-0.8 mm (0.028-0.031 in)
Primary coil
Secondary
coil
(at flywheel) 0.4±0.2 mm (0.016±0.008 in)
gx120k1_gx160k1_gx200
GX160K1
STANDARD
5.48 mm (0.216 in)
5.44 mm (0.214 in)
5.50 mm (0.217 in)
0.8 mm (0.03 in)
30.5 mm (1.20 in)
27.7 mm (1.09 in)
27.75 mm (1.093 in)
13.984 mm (0.5506 in)
14.0 mm (0.55 in)
#70 *1,*2 , #72 *3
13.7 mm (0.54 in)
18.7 mm (0.74 in) *3
*1 *2,*3
, 2-1/8 turns out
7.5-12.5
0.8-1.0
5.9-7.1 k
11.0 mm (0.43 in)
1.6 mm (0.06 in)
3.5 mm (0.14 in)
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GX120K1•GX160K1•GX200
SERVICE LIMIT
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5.318 mm (0.2094 in)
5.275 mm (0.2077 in)
5.572 mm (0.2194 in)
0.10 mm (0.004 in)
0.12 mm (0.005 in)
2.0 mm (0.08 in)
29.6 mm (1.161 in)
27.45 mm (1.081 in)
27.50 mm (1.083 in)
13. 916 mm (0.5479 in)
14.048 mm (0.5531 in)
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6.0 mm (0.24 in)
1.1 mm (0.04 in)
3.0 mm (0.12 in)
0.10 mm (0.004 in)