Honda Gx140 Specifications

by Sara Harvey
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The Honda GX140 is an engine used in go-karts, lawn mowers, golf carts and other small, gas-powered vehicles and machinery. Honda introduced theGX140 in the mid-1980s but the engine and parts are still commonly available on the Internet. Honda's GX series is generally praised for having a good range and long life.


The Honda GX140 engine has a 144 cc, 8.8-cubic-inch displacement and a 2.5- by 1.8-inch bore and stroke. The maximum power output is 5 horsepower at 3,600 rpm.

The engine's maximum torque is 7.7 foot-pounds at 2,800 rpm. Fuel consumption is 0.081 gallons per hour with the engine operating at 2,800 rpm. The cooling system is forced air and the ignition system is transistorized magneto. The PTO shaft rotation spins counter-clockwise. An electric starter is connected to a 12-volt battery with an ampere-hour rating of at least 18 Ah.


The Honda GX140 Type-Q dual element model measures 12.8 inches in length, 14.4 inches in width and 13.2 inches in height. It has a dry weight of 30.9 pounds. The Type-Q oil bath air cleaner has a length of 12.8 inches, a width of 15.2 inches and a height of 13.2 inches. It weighs 35.3 pounds.


The Honda GXV140 has an overhead valve vertical shaft in the A1(6) and N1 variations. It features a crankshaft power take-off (PTO) with a diameter of 3.31 by .875 inches and tapped .375-inch, Pitch 24 Unified Fine Straight (UNF) threads. The top speed with no load is 3,600 rpm. The fuel tank capacity is 1.16 quarts and the net weight is 26 pounds.

This engine is also produced in six other variations: MA1, MA2, MA4, MA7, MAF and MFG, all with top no-load speeds of 3,600 rpm.

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