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WARNING:

This Quick Reference Guide is not a substitute for reading the operator’s manual. To reduce the risk of injury or death, user must read and understand operator’s manual before using this product. All page references refer to 
the operator’s manual.

BMi2122 QUICK REFERENCE GUIDE

Connect devices to be powered by generator by following the steps below 

(see pages 8-9).

  Make sure the generator can supply enough continuous (running) and surge (starting) watts for the items you 

will power at the same time. See page 8 for how to calculate total amount of power needed. 

  Start the generator with nothing connected.

  Plug in and turn on the first load, preferably the largest load you have.

  Permit the generator output to stabilize (engine runs smoothly and attached device operates properly).

  Plug in and turn on the next load.

  Again, permit the generator to stabilize.

  Repeat previous two steps for each additional load.

IMPORTANT: Never add more loads than the generator capacity. Take special care to consider surge loads in 

generator capacity. 

(See pages 8-9.)

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WARNING:

 

Do not connect to a building’s electrical 

system unless the generator and transfer 

switch have been properly installed and 

the electrical output has been verified by 

a qualified electrician. The connection 

must isolate the generator power from 

utility power and must comply with all 

applicable laws and electrical codes.

Only use OUTSIDE and

far away from windows,

doors, and vents.

NEVER use inside a home

or garage, EVEN IF doors

and windows are open.

Using a generator indoors CAN KILL YOU IN MINUTES.
Generator exhaust contains carbon monoxide. This is a 

poison you cannot see or smell.

When preparing to store the generator, allow the unit to cool for 30 minutes, then follow the guidelines listed on 

page 17. Always store the generator standing on its feet. Never store the unit on its side or in a vertical position.

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Make the most of your purchase! Go to www.blackmaxtools.com 

and register your new tool online. For questions about operating or maintaining 

your product, please call 1-800-860-4050.

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998000246 

5-11-20 (REV:01)

FIRST TIME STARTING THE UNIT

IMPORTANT!

FIRST TIME STARTING THE UNIT (CONTINUED)

USING THE GENERATOR

TROUBLESHOOTING

STORING THE UNIT

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Add entire bottle of lubricant provided to the generator

 (see page 12).

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Place Easy Start dial to the COLD START (top) position and the auto idle switch in the off position

 (see page 13).

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Add fuel

 (see page 13).

NOTICE:

 

Do not use E15 or E85 fuel in this product. It is a 
violation of federal law and will damage the unit 
and void your warranty. Only use unleaded gaso-
line containing up to 10% ethanol. 

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Pull the starter grip until the engine runs 

(see page 14).

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STOPPING THE UNIT

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Allow engine to run for 15-30 seconds, then move Easy Start dial to RUN/

RE-START (middle) position 

(see page 14).

15-30 S

15-30 S

Place Easy Start dial to the OFF/STORAGE (bottom) position 

(see page 14).

PROBLEM

POSSIBLE CAUSE

SOLUTION

Engine will not start.

Easy Start dial is in OFF/STORAGE or 

RUN/RE-START position.
No fuel.
Stale gasoline or water in gasoline.
 

Lubricant level is low. 

 

 

Spark plug faulty, fouled, or improperly 

gapped.
Engine stored without treating or draining 

gasoline, or refueled with bad gasoline.
Dirty fuel filter.
CO sensor LED is flashing red, indicat-

ing a CO hazard.
 

 

  

CO sensor LED is flashing yellow and/

or making an audible chirp, indicating a 

sensor fault.

Move Easy Start dial to COLD START 

position.
Fill fuel tank.
Drain entire system and refill with fresh 

fuel.
Engine is equipped with Low Oil Shutoff. 

If engine lubricant level is low, it must be 

filled before unit will start. Check engine 

lubricant level and fill, if  necessary.
Replace spark plug.
 

Drain fuel and carburetor. Refuel with 

fresh gasoline.
Contact a qualified service center.
Leave area immediately and relocate to 

an open outdoor area. Ventilate area thor-

oughly before occupying again.  Ensure the 

generator is located in an open outdoor 

area at least 20 feet away from all doors, 

windows, and occupied spaces, and point 

exhaust away from occupied structures.
The CO sensor needs to be repaired or 

replaced. Contact customer service or a 

qualified service center for assistance.

Engine hard to start.

Water in gasoline. 
 

Weak spark at spark plug.

Drain entire system and refill with fresh 

fuel.
Replace spark plug or contact a 

qualified service center.

Engine lacks power.

Engine stored without treating or draining 

gasoline, or refueled with bad gasoline.
 

Dirty air filter.

Drain fuel and carburetor. Refuel with 

fresh gasoline. If problem continues, 

contact a qualified service center.
Clean or  replace as needed.

AC receptacle does not work.

Item plugged in is defective.
Generator is overloaded.

Try a different item.
Remove loads and press the reset button.

If problem persists after trying the above solutions, contact customer service or a qualified service center for assistance.

NOTICE: 

As the equipment owner, you are responsible for the performance of the required maintenance listed in the 

Maintenance

 section. It is recommended that you retain all receipts covering maintenance on your equipment. Neglecting 

or failing to perform the required maintenance may increase emissions, decrease fuel efficiency, degrade performance, 

cause irreversible engine damage and/or void your warranty.

       

Set unit on flat surface so engine is level.

Remove dipstick, wipe clean, put back in hole 

(but don’t screw in) and check lubricant level.

This is a 4-cycle engine. Do not mix fuel and 

lubricant   together.

Mix fuel stabilizer with gasoline according to 

manufacturer’s directions prior to filling the 

tank.

AUTO IDLE 

SWITCH OFF

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