Go to www.searspartsdirect.com, and type in model # 143.033700 That is the engine specified for that mower. You can then choose between engine, carb, starter, etc. diagrams and parts lists.
it is a model which is schematic
Probably Tecumseh. Look for an engine model beginning with "143"
Briggs & Stratton
looking for a schematic for a 1936 Winchester model 62
Railroad Model Craftsman was created in 1933.
need help to find schematic for a Winchester model 61
1 gal gas + 2cycle engine oil
www.gunparts.com has a schematic for the marlin 27s
Google "Numerich Arms," they have a complete schematic.
Go to searspartsdirect.com and enter your model #.Give the site some time as they are loading the whole schematic of your Tractor and every component it has. Hope that helps.
if it has a Briggs engine go to briggsandstratton.com [all one word]
917.276360