Honda GX670 User Manual

SERVICING YOUR HONDA ENGINE
SPARK ARRESTER SERVICE (optional equipment)
Your engine is not factory-equipped with a spark arrester. In some
areas,
it is illegal to operate an engine without a spark arrester. Check
local laws and regulations.
A spark arrester is available from
authorized Honda servicing dealers.
The spark arrester must be serviced every
100 hours to keep it
functioning as designed.
If the engine has been running, the muffler will be very hot. Allow the
muffler to cool before servicing the spark arrester.
1. HIGH-MOUNT MUFFLER TYPE: Remove the special screw from the
muffler and remove the spark arrester.
SIDE-MOUNT MUFFLER TYPE: Remove the
6 mm flange bolts from
the muffler protector and remove the muffler protector. Remove the
special screws from the spark arrester and remove the spark arrester
from the muffler.
SPECIAL SCREWS
SPARK ARRESTER
6 mm FLANGE BOLT
37

Honda GX670 Specifications

General

Compression Ratio	8.3:1
PTO Shaft Rotation	Counterclockwise (from PTO shaft side)
Cooling System	Forced air
Ignition System	Digital CDI with variable timing
Lubrication System	Forced lubrication with trochoid pump
Engine Type	4-stroke, OHV
Displacement	670 cm³
Bore x Stroke	77 x 72 mm
Oil Capacity	1.9 L
Starting System	Electric starter
Net Power Output	22.1 HP at 3600 RPM