The Whizzer history
1939
August Breene-Taylor Engineering, a Los Angeles-based manufacturer of airplane parts, announced the availability of the Whizzer Model "D" Bicycle Motor. This kit sold for $54.95 and included an air-cooled, four-cycle engine that was capable of producing 1.375 horsepower as well as a 2/3 gallon fuel tank. Approximately 1000 Model "D" motors were made and sold.
1940
July Breene-Taylor released the new Model "E" Bicycle Motor, which was essentially the same as the Model "D" with several key improvements and additions. Most notably, the cylinder head was changed to aluminum for better cooling, the camshaft was redesigned to provide better performance, and an oil dipstick was added to check the oil level. Approximately 1500 Model "E" Motors were made and sold.
1942
The Whizzer Motors had not been a great success, resulting in sales of only about 2500 units. As such, Breene-Taylor decided to divest itself of this unit and focus on more profitable ventures. So, Dietrich Kohlsatt, who supplied the capital, and Martin Goldman, an attorney for Breene-Taylor, bought the Whizzer Motor operation from them.

 1943
With World War II in full swing, Whizzer had to lobby the United States government for the right to continue production of their motorbike engines. Martin Goldman visited Washington and convinced the government that the Whizzer was a great way for defense workers to travel to and from work. Whizzer released the "New Model" engine for "defense workers only." This redesigned engine was more reliable than previous models because it used a belt drive instead of the roller drive that Whizzer Motors had used up to that point.
 

1945
With the War ending, Whizzer was able to bring its production of engines back up and make them available to the general public. The Model "F" released in 1945 was the same as the "New Model" that had been released during WWII, with the same belt drive and large 5-quart gas tank. Approximately 4200 Model "F" engines were sold for $125.

1946
Whizzer moved its main production facilities from southern California to Pontiac, Michigan. This enabled them to use the nearby auto-production facilities to outsource the manufacture of most of the Whizzer components. Henry Schuricht, a former Breene-Taylor engineer who had moved to Whizzer when it changed ownership in 1941, finished redesigning the Whizzer motor. March Whizzer announced the availability of the new Model "H." This new engine featured a one-piece crankcase that replaced the old two-piece case, a crankshaft that used roller bearings at one end and a ball bearing at the other, low  fin head with the sparkplug leaning towards the left side, more reliable seals. The Model "H" was more reliable and popular than any other Whizzer model, with sales at prices ranging from $89.50 to $97.50. The serial numbers run from H 501 thru H 140 000. (139,000 engines) The gas tank is plain silver/gray with a yellow decal on each side. The carburetor was a Tillotson ML-5B. The valves are 3/4 inch in diameter. The crankcase holds 6 oz. of oil. The engine develops a whopping 2.5 horsepower

1948
May Dietrich Kohlsaat announced that they had sold 150,000 Whizzer engines. The company had over 12 dozen warehouses nationwide that supplied 3500 dealers. Whizzer announced the Model "J" engine, which had a chrome-plated exhaust pipe and fittings, a new, more-reliable Carter carburetor, and motorcycle-type twist-grip controls. Whizzer sold about 51,000 Model "J" motors at a cost of $97.55. June Whizzer introduced the "Pacemaker," which the company referred to as the "only complete motorbike." The bike came with the Model "J" engine already attached to the frame and ready to run. The "Pacemaker" retailed for $199.50.
1949
September In order to keep pace with its new competition, Whizzer released the Model "300" Motor. This new engine had 7/8 in. valves, a more efficient combustion chamber, better cooling, and a higher compression ratio. These changes resulted in a 3 hp engine that could reach speeds of 40 mph. Whizzer sold about 15,000 Model "300" motors at $109.97 each. Whizzer released the "Sportsman" motorbike, which was much more like a real motorcycle. The "Sportsman" abandoned pedals altogether and used a kick starter to get the bike going. The "Sportsman" cost $224.50 for the Standard edition, which had a clutch transmission, and $239.50 for the Deluxe edition, which sported the Bi-Matic automatic transmission.
1951
Whizzer released the "Ambassador," a motorbike similar to the "Sportsman" but with a full-size frame, larger tires, and greater overall length. The "Ambassador" was the top-of-the-line, with a gloss black finish, ivory trim, and chrome-plating. The Ambassador sold for $249.50, making it Whizzer's most expensive product.
1952
In 1952, the company introduced its last major motorbike engine, the "700." This motor was in many respects similar to the "300," but it included a new carburetor, a sealed-beam headlight, and a taillight.
1955
Whizzer Motorbike Company changed names to become Whizzer Industries, Inc. and began to expand into other areas of production. Whizzer Industries produced childrens' toys and wagons as well as windows and sliding doors. The company continued to sell parts for Whizzer engines and bikes until 1965, but times had changed and the Whizzer was no longer king.

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