GC135
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GC160
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GC190
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GS190 Maintenance Information
I
C
D
K
K
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M
L
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LIGNMENT MARKS
Set the piston at top dead center of the
compression stroke (both valves fully closed).
Valve clearance:
0.15 mm ± 0.04 mm (IN)
0.20 mm ± 0.04 mm (EX)
・To increase valve clearance, screw out.
・To decrease valve clearance, screw in.
・Do not use excessive force to remove
carbon from the aluminum head.
・Do not allow the cleaning brush to contact
the cylinder wall.
FUEL TUBE
Check the fuel lines for deterioration, cracks,
or signs of leakage.
A
UPPER LIMIT
LOWER LIMIT
C
D EF
Standard spark plug: BPR6ES (NGK)
THROTTLE STOP SCREW
CAM
PULLEY
CYLINDER HEAD COVER MATING SURFACE
J
VALVE
DJUSTING
LOCK NUT
VALVE ADJUSTING WRENCH B
FEELER GAUGE
VALVE
DJUSTING
LOCK NUT
VALVE ADJUSTING
SCREW
VALVE STEM
CLEANING
BRUSH
Use thick
paper or
equivalent to
protect the
cylinder.
ELECTRIC DRILL
FUEL TANK
Clean the strainer with nonflammable
solvent, and check to be sure the strainer
screen is undamaged.
Wash with solvent
to remove the
sediment, and
dry thoroughly before
installing.
FUEL PUMP
FUEL
TANK TUBE
OIL DRAIN
PLUG BOLT
Tap the element several times on a hard
surface to remove dirt, or blow
compressed air (not exceeding 207 kPa
<2.1 kgf/cm², 30 psi>) through the element
from the clean side that faces the engine.
IR CLEANER ELEMENT
SIDE ELECTRODE
Measure the plug gap
with a wire-type feele
gauge.
If necessary, adjust
the gap by bending
the side electrode.
GAP: 0.7 - 0.8 mm
MUFFLER
PROTECTOR
© Honda Motor Co., Ltd. 2009
Insert the dipstick in the oil filter neck, but do
not screw it in. Remove the dipstick and
check the oil level.
B
API service category: SF or later
Engine oil capacity:
0.58 ℓ (0.61 US qt)
SAE Viscosity Grades
AMBIENT TEMPERATURE
・On some applications the engine speed is
fixed and does not idle.
・The standard idle speed may be different
depending on the application.
Refer to the equipment manufacturer's
instructions for specific idle speed setting.
H
Standard idle speed:
1,400 ± 150 rpm
SPARK
RRESTER
(OPTIONAL PART)
SPARK
RRESTER
SCREEN
WIRE
BRUSH
G
TIMING BELT
Check that the belt is not worn or cracked,
and do not bend or twist the belt.
OIL FILLER CAP/DIPSTICK
OIL DRAIN
PLUG WASHER
CONTAINER
Drain the used engine oil while the engine is
warm. Warm oil drains quickly and completely.
FUEL STRAINER
REGULAR SERVICE PERIOD (1)
Perform at every indicated month or operating
hour interval, whichever comes first.
ITEM
Check level
●
Change
●
●
(2)
Check
●
Clean
●
(3)
Replace
●
Timing belt Check
Check-adjust
●
Replace
●
Spark arrester
(applicable types)
Idle speed Check-adjust
●
(5)
Valve clearance Check-adjust
●
(5)
Combustion chamber Clean
Fuel tank and filter Clean
●
(5)
Fuel tube Check
(1) For commercial use, log hours of operation to determine proper maintenance intervals.
(2) Change engine oil every 25 hours when used under heavy load or in high ambient temperature.
(3) Service more frequently when used in dusty areas.
(4) Check that there are no cracks or abnormal wear in the belt, and replace it if necessary.
(5) These items should be serviced by your servicing dealer, unless you have the proper tools and are mechanically proficient. Refer to Honda shop manual for servicing procedures.
(6) In Europe and other countries where the machinery directive 2006/42/EC is enforced, this cleaning should be done by your servicing dealer.
Engine oil
Every
6 months
or
50 hrs.
Every
3 months
or
25 hrs.
Every
year
or
100 hrs.
Each use
First
month
or
5 hrs.
Every
2 years
or
250 hrs.
Air cleaner
After every 250 hrs. (4) (5)
●
(6)
After every 250 hrs. (5)
Every 2 years (Replace if necessary) (5)
Spark plug
Clean
C
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F
G
H
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