How to increase the speed of a lawn mower

Written by karen miller
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How to increase the speed of a lawn mower
(Jupiterimages/Comstock/Getty Images)

While lawnmowers are often used to cut grass, many are also used for racing competitions. If you want to get into racing without having to spend a lot of money in the process, build your own racing lawnmower to lead you to the finish line. Use an ordinary lawnmower and tweak it to speed up its performance. There are several ways to increase your lawnmower's speed.

Skill level:
Moderately Easy

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Things you need

  • Measuring tape
  • Wrench
  • 5-inch transmission pulley
  • Screwdriver
  • Soap
  • New air filter

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  1. 1

    Determine how large your engine pulley is. Your engine pulley will serve as the lawnmower motor pulley, located right at the crankshaft of its engine. Measure to make sure it is at least 11 inches long.

  2. 2

    Remove your lawnmower transmission pulley. This is found at the back of the engine pulley, connected by a bolt. Remove the bolt with your wrench in order to remove the pulley.

  3. 3

    Connect a 5-inch transmission pulley where you removed the original model. Tighten the bolts at the sides of the new pulley using your wrench. Your new pulley should at least be 2 inches smaller than the original one.

  4. 4

    Remove the governor by unhooking it from its position. Locate your lawnmower governor at the top of the engine. Ride on your lawnmower to get a full view of the governor. The hooks are located at the sides of the device. Removing the governor will take away the speed limit of your engine and provides it with more output power.

  5. 5

    Take out the air filter of your lawnmower by unscrewing its housing with a screwdriver. Clean it thoroughly with soapy water and tap it lightly on a hard surface to get rid of the debris.

  6. 6

    Insert the filter back to its original placement by screwing the housing with your screwdriver.

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