The thing is that all the fire crater pistons were supposed to be timed to 22 degrees btdc but the magneto has a set 35 degree advance ( spark lag). There was a special impulse coupler made for magnetos when used with fire crater pistons on the M. If you are satisfied with the way it runs ok, but if you intend to pull it heavy I am sure you will have detonation with a std magneto. Not good. I am sure you would have a smoother better running M with a 22 degree, properly tuned, battery ignition distributor on it.
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Today's Featured Article - History of the Cockshutt Tractor - by Danny Bowes (Dsl). The son of a very successful Toronto and Brantford, Ontario merchant, and himself quite an entreprenuer, James G. Cockshutt opened a business called the Brantford Plow Works in 1877. In 1882, the business was incorporated to become the Cockshutt Plow Company. Along with quality built equipment, expedious demand and expansion made Cockshutt Plow Works the leader in the tillage tools sector of the farm equipment industry by the 1920's.
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