How to Change the Torque on a Two-cycle Snow Blower

Smaller, two-cycle gas engines, such as those found in snow blowers, are measured in torque rather than horsepower, which defines larger engines like those in cars. Torque is the amount of force a small engine uses to crank its drive train and transmission. Basic wear and tear on a snow blower engine can decrease its torque. But you can increase efficiency and torque on a two-cycle snow blower engine by making repairs or adjustments.

Gas
Two-cycle oil
Spark plug wrench
Spark plug
Phillips screwdriver
Replacement air filter
Wire brush
Spray carburetor cleaner

Instructions

- 1
  Drain out any old gas that has sat inside your snow blower tank for longer than two months. Mix the correct amount of two-cycle oil and gasoline in a gas can and add it to the tank before using the snow blower. Two-cycle oil and fuel mix rates will vary with different models of snow blowers, so consult the owner's manual for your specific make and model.
- 2
  Change the spark plug on the snow blower if the old one appears to be fouled. To check the spark plug, remove the spark plug cap by hand. Remove the old plug with a spark plug wrench. Look for carbon scoring or other signs of dirt or wear on the plug. If there is, screw in a new one, tighten it with the wrench and replace the cap.
- 3
  Check and clean the air filter if it is dirty. Open the air filter box either by hand or remove the retaining screws with a screwdriver. If the filter appears dirty, place in a new one.
- 4
  Remove the screws that hold the spark arrestor in place over the muffler, using a screwdriver. Deposits from the muffler can clog the spark arrestor and decrease the snow blower's power. Scrub the spark arrestor with a wire brush, spray it with carburetor cleaner to clean it off and then re-install it.

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