Sprywheel garden tractor

Flywheel Forum

| June 2009

  • sprywheel

  • sprywheel

Regarding the inquiry: “Is it an Indian motor?” in the February 2009 installment of Flywheel Forum, the machine pictured is a Sprywheel garden tractor. The engine was not built by Indian Motor Cycle Co., but it was built, or at least designed, by Sprywheel for this garden tractor. From a Jan. 1, 1921 article in Chilton Tractor Journal:

“The engine from which the machine receives its motive power has a single-cylinder, which is air-cooled. The two-cycle principle obtains in this engine, instead of the more usual four-cycle. The cylinder is set vertical in the frame built up of castings. The bore and stroke are the same – 2-1/2 inches. The combustion mixer enters the engine through ports, the diameter of the inlet being 7/8 inch and the exhaust 1-1/16 inch. The engine weighs 28 pounds and runs at normal speed of 700 rpm. There are three rings on the piston, each 3/32 inches wide. The crankshaft is 3/4 inches in diameter and has two bearings with a total length of 2-1/32 inches.”

Dick Hamp, 1772 Conrad Ave., San Jose, CA 95124; kayhamp1@aol.com 


Gas Engine Magazine A_M 16Gas Engine Magazine is your best source for tractor and stationary gas engine information.  Subscribe and connect with more than 23,000 other gas engine collectors and build your knowledge, share your passion and search for parts, in the publication written by and for gas engine enthusiasts! Gas Engine Magazine brings you: restoration stories, company histories, and technical advice. Plus our Flywheel Forum column helps answer your engine inquiries!

Be sure to take advantage of the Square Deal Subscription Program.

  • No Missed Issues.

  • No Renewal Notices.

  • No Additional Cost.

The Square Deal Subscription Program is designed as a paperless transaction with automatic renewals at a preferred low rate.   With advanced electronic notification, a 100% satisfaction guarantee and an easy opt-out plan, the Square Deal Subscription Program is the best value, risk free, eco-friendliest way to subscribe.

Facebook YouTube