Harbor Freight Tools (173cc) Quick Start Guide

Maintenance Schedule
To ensure prolonged life of your engine, perform regular maintenance as
suggested in the table below.
Procedure
Brush off outside of engine
Check engine oil level
Check air cleaner
Check deposit cup
Change engine oil
Clean/replace air cleaner
Check and clean spark plug
Before Monthly or Every 3 mths
Each every 20 hrs or 50 hrs of
Use
of use
use
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Check/adjust idle speed
QUICK START GUIDE
Every 6 mths
Yearly or
Every 2
or 100 hrs of every 300 hrs
Years
use
of use
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Check/adjust valve clearance
Clean fuel tank, strainer and
carburetor
Clean carbon build-up from
combustion chamber
Replace fuel line if necessary
Vertical Shaft Gas Engine
Item: 69731
Engine Components
A. Brake Arm
B. Throttle
C. Air Filter
D.
E.
F.
G.
Starter Handle
Fuel Cap
Gas Tank
Dipstick
**
* Service more frequently when used in dusty areas.
** These items should be serviced by a qualified technician.
READ AND UNDERSTAND USER MANUAL BEFORE USE.
Mount Engine
STOP
Starting Procedure
Check engine for oil and
fuel on a flat surface.
If engine does not have the
recommended amount,
fill as shown below
Attach Cables To Brake
Arm And throttle
1. PRESS PRIMER TWICE
BRAKE
ARM
BRAKE
BRACKET
*NOTE:
Location, operation
and design of
throttle may vary
Check engine fuel level
and add fuel to within
1" of the rim of the tank
4. PULL CORD
THROTTLE
CABLE SHEATH
3. HOLD MOWER
HANDLES TOGETHER
Full level
MOWER BRAKE
CABLE SHEATH
THROTTLE
CABLE
2. CLOSE THROTTLE*
5. SLOWLY OPEN THROTTLE
IMPORTANT: Breaking-in the engine will help to ensure proper equipment and engine performance.
The operational break-in period will last about 3 hours of use. During this period: • Do not apply a heavy load
to the equipment • Do not operate the engine at its maximum speed.