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Yamaha 340 Snowmobile Engine Specifications

by John Vann

The Yamaha Enticer 340 engine is a snowmobile engine originally produced in the 1970s and early 1980s. Named for its ability to provide up to 338 cubic centimeters of displacement, the Yamaha Enticer 340 was a popular choice for racing-oriented snowmobiles of the time. The engine is now used to complete restoration of vintage Yamaha snowmobiles.

Speed

The Yamaha Enticer 340 engine is capable of propelling a snowmobile at speeds up to 55 mph through the snow. This is due to the 338 cubic centimeters of displacement that is offered by the engine.

Horsepower

A maximum horsepower rating of 32 can be achieved when the Yamaha Enticer 340 engine is running at 6,500 revolutions per minute.

Transmission

An automatic transmission is featured in the Yamaha Enticer 340 engine. This changes through gears automatically, letting the driver focus on the proper and safe operation of the snowmobile.

Bore and Stroke

The Yamaha Enticer 340 is a two-stroke engine, meaning the piston makes two complete strokes in between combustion firings within the engine. The piston travels a total of 60 millimeters while turning 180 degrees, giving the engine a stroke rating of 60. The internal diameter of the cylinder, which houses the piston, measures 59.6 millimeters. This gives the Yamaha Enticer 340 engine a bore rating of 59.6.

Cooling

The Yamaha Enticer 340 is a fan-cooled twin engine. It uses large fans to improve air circulation to the engine, which minimizes the potential of engine overheating.

About the Author

This article was written by the It Still Runs team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more about It Still Runs, contact us.

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Photo Credits

  • snowmobile 2 image by Przemyslaw Moranski from Fotolia.com