DR RapidFire 5.5 HP Subaru User Manual
DR
SAFETY & OPERATING INSTRUCTIONS
®
5.8 HP ENGINE
DR Power Equipment
Toll-free phone: 1-800-DR-OWNER (376-9637)
Original Language
Read and understand this manual and all instructions before operating the DR 5.8 HP ENGINE.
Fax: 1-802-877-1213
Website: www.DRpower.com
Table of Contents
I: Safety Precautions .............................................................................................................................................................................. 3
II: Parts Description .............................................................................................................................................................................. 4
III: Pre-Operation Inspection ................................................................................................................................................................ 5
IV. Starting the Engine .......................................................................................................................................................................... 7
V. Running the Engine .......................................................................................................................................................................... 8
VI. Stopping the Engine ........................................................................................................................................................................ 9
VII. Exhaust Control System ................................................................................................................................................................. 10
VIII: Maintenance .................................................................................................................................................................................. 11
IX. Transport and Storage ..................................................................................................................................................................... 14
X: Troubleshooting ................................................................................................................................................................................ 15
XI. Specifications ................................................................................................................................................................................... 19
XII. Electrical Diagram .......................................................................................................................................................................... 20
Conventions used in this manual
This indicates a hazardous situation, which, if not avoided, could result in death or serious injury.
This indicates a hazardous situation, which, if not avoided, could result in minor or moderate injury.
This information is important in the proper use of your machine. Failure to follow this instruction could result in damage to
your machine or property.
Additional Information and Potential Changes
DR Power Equipment reserves the right to discontinue, change, and improve its products at any time without notice or
obligation to the purchaser. The descriptions and specifications contained in this manual were in effect at printing.
Equipment described within this manual may be optional. Some illustrations may not be applicable to your Engine.
2 DR
®
5.8 HP ENGINE
I: Safety Precautions
There is a possibility of voiding the warranty and personal or equipment damage if instructions are not followed.
Please pay special attention to the following:
1. Operate the engine according to the recommendations in your owner's manual. Do not overload, overrun the engine or
run it with low load and at low speed for a long period of time.
2. Use regulated 87 octane brand of gas. The fuel should be fully deposited and filtrated before use. Keep the fuel filler clean
to prevent contamination.
3. Change the oil periodically as described in the “Maintenance” section of this manual.
4. Periodically check the installation, connection and the tightness of the mounting hardware. Tighten when necessary.
5. Periodically clean the air filter; change it as indicated in the “Maintenance” section.
6. This gasoline engine is air-cooled, so clean the cooling fins, recoil cover and air intake to allow the engine cool normally.
7. The operator should be familiar with the working principle and structure of this gasoline engine, knowing how to make an
emergency stop when needed. Do not allow anyone without training to operate the engine. Perform periodical
maintenance per the “Maintenance” section. Fix all operation problems immediately. Do not run the engine if it is not
operating properly.
8. Only operate the engine in a well-ventilated place, keep it at least one meter away from building walls or other equipment,
keep engine away from inflammables such as gasoline, matches and so on to avoid possibility of fire.
9. Refuel in a well-ventilated area with the engine stopped, do not smoke and do not allow flames or sparks in the refueling
area.
10. Do not overfill the fuel tank to avoid fuel spilling out. If there is spilled fuel around, be sure to clean it thoroughly before
starting.
11. Do not run the engine inside buildings or enclosure areas.
12. The exhaust muffler is very hot during running the engine and even after the engine stops. Never touch it, or you may get
burns. Do not transport or store the engine until it has cooled down entirely.
13. Safe warning label:
Please carefully read warning labels before operating. Our company will not accept any responsibility if a person is hurt, or
equipment becomes damaged due to disregarding warning labels.
Starter
Handle
Oil
Dipstick
Drain
Plug
CONTACT US AT www.DRpower.com 3
II: Parts Description
r
Air
r
Muffler
Spark
Plug
Choke Lever
Cleane
Throttle
Leve
Fuel Tank Cap
Fuel Tank
Fuel Shutoff
Carburetor
Starter
Handle
Engine
Switch
Oil Protector
Oil Dipstick
Recoil Starter
Oil Plug
Oil Drain
Plug
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®
5.8 HP ENGINE
III: Pre-Operation Inspection
1. ENGINE OIL
Use 4-stroke engine oil, API service classification SE class or equivalent. Check the API service label on the oil container to be sure
it includes the letters SE class or equivalent.
SAE 10W-30 is recommended for general use. Other viscosities shown in the chart may be used
when the average temperature in your area is within the indicated range.
Oil level check
Check method:
1. Remove the dipstick and clean it with a rag.
2. Reinsert the dipstick into the oil filling hole without screwing it in. Pull the dipstick out and
check oil level.
3. If the oil level is too low, add the recommended engine oil up to the oil filling neck.
4. Reinstall the dipstick.
Oil Capacity = 0.5L
Drain Plug
SAE Viscosity Grades
Environment Temperature
Oil Dipstick
Oil Upper Level
Oil Lower Level
Run with insufficient engine oil may damage the engine severely and that is not within valid warranty.
2. AIR CLEANER
Remove the air cleaner cover and check the air filter to make sure it is clean and not damaged. Clean or replace it as necessary
(see the “Maintenance” section for maintenance of air filter).
Never run the engine without the air filter and cover installed or damage to the engine could result. Damage to the engine
by not having a air filter and cover installed is not covered under warranty.
CONTACT US AT www.DRpower.com 5
3. FUEL RECOMMENDATION
1. Remove the fuel tank cap and check the fuel level.
2. If the level is too low, refuel the tank to the recommended level. Remember to never add fuel over the fuel filler shoulder.
Gasoline is extremely flammable and is explosive under certain conditions.
Only add fuel in a well-ventilation area with the engine stopped. Do not smoke and do not allow flames or sparks in the area
where gasoline is stored or where the fuel tank is refueled.
Do not overfill the fuel tank (there should be no fuel in the filling neck). After refueling, make sure the fuel tank cap is installed
securely.
Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite. If any fuel is spilled, make sure the area
cleaned up and is dry before starting the engine.
Avoid repeated or prolonged contact with skin or breathing of fuel vapor. Keep out of reach of children.
Fuel Filler Shoulder
Maximum
Fuel Level
Fuel Filler
Fuel Tank Capacity = 3.6L
Fuel may damage the paint and plastic. Be careful not to spill fuel when refueling. Any damage due to fuel spilling is not
covered under warranty.
It is normal to hear a "Light knocking" or "spark exploding" sound when the engine is overloaded. Do not be concerned if this
occurs. If "knocking" or "spark exploding" sounds occur at a steady speed under normal load, change the brand of gasoline; if
the sounds continue, consult your dealer for help..
If you continue to run the engine with a "Knocking" or "spark exploding" sound during normal operation, it will damage the
engine.
Continuing to use the engine with "Knocking" or "spark exploding" sounds from misusing will void the engine warranty.
6 DR
®
5.8 HP ENGINE
IV. Starting the Engine
ON
1. Turn the fuel Shutoff to the “ON” (OPEN) position.
2. Turn the choke lever to the “CLOSE” (CHOKE) position. If the gasoline engine is
hot, don’t close the choke.
3. Move throttle lever to the left a little.
Fuel Shutoff
OFF
Choke Lever
Close (Choke)
Throttle Lever
4. Start the engine
a. Turn the engine switch to the “ON” (START) position.
b. Pull the starter grip lightly until resistance is felt, then pull briskly.
Low Speed
High Speed
Don’t allow the starter grip to snap back against the engine. Return it gently to prevent damage to the starter
CONTACT US AT www.DRpower.com 7
V. Running the Engine
Choke
Lever
OPEN
Throttle
Lever
1. Preheat the engine and push back the choke lever to the “OPEN” position.
2. Move the throttle lever to proper position to make the gasoline engine run at required
speed.
High Altitude Kit for EPAIII Engines
3000ft to 6000ft or 6000ft to 8000ft of elevation
At high altitude, the standard carburetor air-fuel mixture will be too rich. Performance will decrease and fuel consumption will
increase. A very rich mixture will also foul the spark plug and cause hard starting. Operation at an altitude that differs from
that at which this engine was certified, for extended periods of time, may increase emissions.
The fuel system on this Engine or Equipment may be influenced by operation at higher altitudes. Proper operation can be
ensured by installing an altitude kit when required. See the table below to determine when an altitude kit is required.
Operating this engine without the proper altitude kit installed may increase the engine’s emissions and decrease fuel
economy and performance. Kits may be obtained from DR Power Equipment, and should be installed by a qualified individual.
Altitude Range﹡
Kit Part
0 – 3000 ft Not Required
3000 – 6000 ft Altitude kit 1#
6000 – 8000 ft Altitude kit 2#
﹡ Elevation above sea level.
This high altitude jet is to be used at elevations above 3000 feet.
At elevations above 8000 feet, the engine may experience decreased performance, even with the high altitude kit.
To prevent serious injury from fire: Follow the kit procedures in a well-ventilated area away from ignition sources. If the engine is
hot from use, shut the engine off and wait for it to cool before proceeding.
The warranty may be void if necessary adjustments are not made for high altitude use by installing a high altitude kit.
If a carburetor is replaced, the proper high altitude kit jet will need to be installed into the replacement carburetor.
8 DR
®
5.8 HP ENGINE
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