Ultra MBX R2, Instruction Manual

READ THIS BEFORE RUNNING

Running a nitro kit is fun and easy, but to make this a safe 

rusting.
• Clear oil and dirt from chassis with a degreaser.

and good experience you must observe a few rules.  This 
kit is extremely fast, easily over 40MPH, and can seriously 

Precautions

injure someone if you are not careful.

• This kit is not a toy.  Always run car with a second 
person as a spotter and pitman.

Where to run car?

• Any running area you choose must be dry.  Do not run 

• Hot Parts - The pipe, manifold, engine and head are very 

car near any water or wet dirt.

hot and will cause burns.

• Do not run on public streets.  It is very easy to have the 
car run over or damaged by hitting the curb.

• Rotating Parts - Keep hands away from the drive train, 

• Do not operate car in tight confined places. The car is 

wheels, and engine when engine is running.

very fast and will easily hit something.
• Do not run near people or animals. 

• Radio - Check batteries life before running the car.  If 

radio does not have full control of the car with steering 

 • Due noise, you will want to consider the surrounding 

and/or throttle/brake do not run until corrected.  Failure to 

area when operating the car.

correct this will result in possible injury and damage to the 

• Do not operate the car at night.  You will not be able to 

car or property.

drive it without hitting something.
• Do not operate the car indoors.  Engine exhaust is not 

• Glow fuel - Do leave the glow fuel unattended with the lid 

healthy.

off.  Fuel contains Methanol and Nitro Methane and is 
flammable and poisonous.

Glow Fuel

• Glow fuel is poisonous!

Store fuel in cool ventilated location.  Refer the glow fuel 

• Glow fuel is flammable!
• Do not leave in fuel bottle with lid off at any time.

label for additional precautions.

• Don use any fuel other than glow fuel in this engine.

• Car Fuel tank - Never store fuel in car tank, it will ruin the 

First Time Starting the Engine

engine if left in tank.

Caution! When starting engine make sure the following is 
observed.

• Always turn off the car BEFORE turning off radio.

• Set engine Master needle to 3 turns (rich setting)
• Do not do this alone, get an experienced friend to help at 

• DAMAGE DUE CAR RUN AWAY IS NOT A WARRANTY 

first.

ISSUE.

• Fill fuel tank, try not to spill fuel.  Do not spill fuel on 
receiver
• Hold car off the ground, so it will not runaway when first 

IF YOU DO NOT BREAK-IN ENGINE 

starts
• Turn on Radio and check the linkage before starting 

CORRECTLY, MAINLY AT LOW RPM, 

engine.
• Turn on car receiver battery switch.

YOU WILL BREAK THE CONNECTING 

• Always have an air filter on the carburetor to keep dirt 

ROD!

out.

Engine Break-in

• See Engine Page.

Emergency Stopping Engine When Running

• Remove air filter and cover carb. intake.
• Squeeze fuel line and hold until engine stops.
• With a rag, cover exhaust outlet.

Storing Car After Running

• Remove fuel from tank and fuel lines
• Turn off radio in car
• Put a few drops of after run in engine to keep it from 

The car is very fast 

and will too easily hit someone.