Model J Engines

First series of 4 cycle engines built starting in 1911. In 1911 there were 3 sizes available in the Junior line 1 1/2 , 4hp, and Big 6. Early 1912 ads in the 1 3/4, 2 1/2, 8, & 12. Late 1912 is the first time seeing the engines getting special names and some horse powers changed as well. I'm only guessing these engines were possibly produced up to 1916.

1 1/4 HP "JUNIOR", "PUmping and Dairy special", "Jewel"

Most people call these engines 1hp engines. When first introduced they were rated at 1 1/2hp then demoted to 1 1/4 late 1912

3" Bore x 3 1/2" Stroke

400-600 RPM 1911

200-600 RPM 1912 on

Flywheel diameter 15 5/8" 1911-late 1912

Flywheel diameter 15 3/4" late 1912 on

315 lbs shipping weight 1911-early 1912

240 lbs shipping weight late 1912

1 3/4 HP "Standby"

3 1/2" Bore x 5" Stroke

200-600 RPM

Flywheel diameter 17 1/2" early 1912

Flywheel diameter 16 1/2" late 1912

Flywheel diameter 17" 1913

375 lbs shipping weight early 1912

275 lbs shipping weight late 1912

235 lbs shipping weight 1913

2 1/2 hp " Popular"

4 1/4" Bore x 5 1/2" Stroke

200-600 RPM

Flywheel diameter 22" early 1912

Flywheel diameter 20" late 1912

450 lbs shipping weight 1912

4 HP "Leader"

4 3/4" Bore x 6" Stroke

350-600 RPM 1911

200-500 RPM late 1912 on

Flywheel diameter 25" 1911

Flywheel diameter 26" early 1912

Flywheel diameter 25 1/2" 1913

800 lbs shipping weight

6 hp "Big six"

6" Bore x 8" Stroke

325-550 RPM 1911

280-450 RPM early 1912

380 RPM late 1912 on

Flywheel diameter 34" all

1200 lbs shipping weight

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