MESSAGE FROM FOX MFG. CO.

We are very proud of this series of motors, and want yours to give you the best possible service. After reading this manual in its entirety, follow it to the best of your ability, and if you have any questions, feel free to call us at Area Code 501-646-1656.

WARNING:

There is always the possibility you may lose control of your model. Do not fly in any location where your model might strike somebody or do property damage.

INSTALLATION:

Mount your motor solidly with a rigid type mount. Flimsy mounting will allow excessive vibration, and may cause damage to the model, and will cause foaming of the fuel tank. Excessive vibration could also cause glow plug failure.

PROPELLERS TO USE:

Always use a hardwood propeller. Nylon propellers flexible nature will cause excessive vibration. For models with 50" wingspan or larger, we recommend using 10-6, and for smaller models use a 9-7.

WARNING:

Always keep clear of the propeller. It is possible to get a finger cut off, or for a piece to come off and put out an eye.

FUELS TO USE:

We recommend use of a fuel with a minimum of 17-20% castor oil, such as Fox Gold Star, Duke's Fuel, or Formula 15. Fuel that does not leave an oily exhaust residue will cost you dearly in excessive motor wear.

WARNING:

Model Airplane fuel is both flammable and extremely poisonous. Use the same safety precautions you would use with a can of gasoline or a bottle of poison.

GLOW PLUGS:

Your Fox 40 uses a long thread plug. Standard long plug without idle bar is recommended for control line use. R/C Long or Miracle Plug is recommended for use with R/C motors. R/C Long Plug has machined on Idle Bar, but the Miracle Plug will retain heat better and give the best idle.

STARTING YOUR MOTOR

Mount motor securely on a mount that does not put a strain on the mounting lugs. Use #4-40 Mounting Screws. Fuel tank centerline and fuel inlet on the carburetor should not be higher or lower than 1/2". Same holds true for routing of fuel tubing. Use medium size fuel tubing (.080 ID).

Carburetor is pre-set at the factory. to fine tune your motor, follow these instructions:

1. Screw High Speed Needle in to bottom (do not force or over-tighten). Then screw needle out two (2) turns for a starting point.
2. To set idle air adjustment screw, screw in until point of screw is midway of air inlet hole. To fine adjust idle, turn screw in to richen and out to lean.
To determine proper setting, find the setting that is too lean and then make a small rich adjustment. You can do this by pinching the fuel line. The motor should rev up. Screw needle valve in a couple of clicks (leaning out the mixture). Repeat this process until motor no longer revs up, THEN BACK THE NEEDLE OUT 3 TO 4 CLICKS. This should give you a good flight setting to let your motor perform as it was designed, unloading to peak performance in the air. When a motor goes lean in the air, it gives poor performance and causes damage to the motor.

WARNING:

A model airplane motor can get hot enough to cause a serious burn. Do not touch the motor right after it has been running.

BREAK IN:

Your Fox motor has a closely fit piston which requires 30 to 60 minutes running before it will idle reliably. During this period especially, take care that the motor is not run over-lean.

WHEN THINGS DO NOT GO SO WELL:

Motor Won't Start:

- Bad Plug
- Fuel Tank Empty
- Fuel Line Collapsed, Leaky, or Off
- Weak or Dead Battery

Motor Won't Keep Running When Glow Plug Heater Removed

- Insufficient Nitro for weather conditions
- Bad Plug - or carboned from inferior fuel use
- Needle Setting too Rich
- Water in Fuel

Motor Quits after a Short Time Running

- Hole in Flopper Tube in Tank
- Carburetor Set Too Lean
- Fuel With All Synthetic Oil

Glow Plug Burns Out Excessively

- Over Voltage - Should Glow Orange, Not White
- Excessive vibration, caused by loose or flexible mounting, unbalanced prop, or plastic propeller flexing.
- Crumpled Glow Plug Element - Caused by cranking with a flooded motor.

IN CASE OF CRASH DO NOT TURN MOTOR OVER:

1. Remove from rest of model.
2. Wash under hot water faucet.
3. Remove plug and rear cover and wash in stoddard solvent.
4. Now check, and if motor turns freely, it probably isn't hurt.

OTHERWISE, PROCEED TO DISASSEMBLE:

Inspect all parts - discard any that appear damaged or worn. New parts can be obtained directly from factory by calling area code 501-646-1656 during business hours. If repairs are more than you want to handle, send motor directly to us. Do not return to source from which purchased. We will disassemble and replace necessary parts, test run and return motor to you charges collect. If you want to avoid COD charges, please send your Visa or Master Card Number and expiration date along with the motor when you send to us. We cannot make any sort of estimate, however, we assure you that charges will never exceed 50 percent of factory list price of a replacement motor.