GX25/GX35

GX25/GX35
3.0 N‧m
(0.3 kgf‧m,2.2lbf‧ft)
ADJUSTMENT THE IDLE SPEED
THROTTLE STOP SCREW
ENGINE OIL
6.4 N‧m
(0.65 kgf‧m,4.1lbf‧ft)
OIL
FILLER
NECK
3.0 N‧m
(0.3 kgf‧m,2.2lbf‧ft)
3.4 N‧m
(0.3 kgf‧m,2.5lbf‧ft)
Adjustment:
6.4 N‧m
(0.65 kgf‧m,4.7lbf‧ft)
Start the engine and allow it to warm up to normal
operating temperature.Then,adjust the idle speed by
turning the throttle stop screw right or left.
Standard idle speed
Honda recommends
that you use API
SERVICE category
SF or SG oil.
15 N‧m
(1.55 kgf‧m,17lbf‧ft)
3.100±200rpm
22.6 N‧m
(2.3 kgf‧m,16.7lbf‧ft) GX-35
VALVE CLEARANCE
14.7 N‧m
(1.49 kgf‧m,10.71lbf‧ft) GX-25
ALIGNMENT MARK
12 N‧m
(1.2 kgf‧m,2.2lbf‧ft)
CYINDER HEAD CENTER
To increase valve
clearance,screw out.
-30
-20
-20
-10
0
0
20
10
40
20
60
30
40℃
80
100℉
AIR CLEANER
4.9 N‧m (0.45 kgf‧m,3.2lbf‧ft)
AIR CLEANER COVER
4.4 N‧m (0.45 kgf‧m,3.2lbf‧ft)
3.0 N‧m
(0.3 kgf‧m,2.2lbf‧ft)
ADJUSTING
SCREW
To decrease valve
clearance,screw in.
Standard valve clearance
IN
EX
SQUEEZE
THOROUGHLY
ADJUSTING
SCREW
LOCK NUT
TORQUE:4.9N‧m(0.5Kgf‧m,3.9lbf‧ft)
AIR CLEANER
ELEMENT
0.08±0.02mm
0.11±0.02mm
SOLVENT
6.4 N‧m
(0.65 kgf‧m,4.7lbf‧ft)
IGNITION COIL AIR GAP
SPARK PLUG
6.4 N‧m
(0.65 kgf‧m,4.7lbf‧ft)
0.2-0.4mm
MAGNETIC
(0.008-0.016 in) PARTS
Specified clearance
GX25
0.3-0.5mm (0.012-0.020 in)
GX35
0.2-0.4mm (0.008-0.016 in)
© Honda Motor Co., Ltd. Power Product Service Division.
CRANKSHAFT/CAMPULLEY
CRANKSHAFT/PISTON
CARBURETOR DISASSEMBLY/REASSEMBLY
CYLINDER
BARREL
CAM PULLEY
Set the oil seal on the crankshaft.
ENGINE OIL
LIQUID GASKET
0.2-0.4mm
(0.008-0.016 in)
FEELER
GAUGE
10W-30
“
Standard spark plug
CMR5H (NGK)
CARBURETOR REMOVAL /INSTALLATION
METERING
DIAPHRAGM
” or “R” MARK
O-RING
Install by aligning the oil seal projection
with the groove in the cylinder barrel.
PUMP SPRING
MAIN JET
PUMP GASKET
CRANKSHAFT
0.6–0.7mm (0.024–0.028 in)
INLET SCREEN
TIMING BELT
PISTON
Spark plug gap
“
PUMP
DIAPHRAGM
” MARK
10mm(0.4 in)
METERING
LEVER
SPRING
METERING
LEVER PIN
METERING
DIAPHRAGM
GASKET
INLET
NEEDLE
VALVE
METERING
LEVER
CARBURETOR
GASKET
BREATHER TUBE
12.3×2.4mm O-RING