The Kohler K91 engine has an L-head (side valve) design and horizontal PTO-shaft. This engine can be equipped with Kohler or Walbro carburetor and magneto, battery or breakerless ignition systems. The K91 engine used paper air cleaner (oiled foam precleaner was available as an option).What kind of air cleaner does a K91 engine use?
The K91 engine used paper air cleaner (oiled foam precleaner was available as an option). The cylinder bore is 60.33 mm (2.38 in) and the piston stroke is 50.80 mm (2 in).What kind of carburetor does a Carter K90 use?
CARBURETOR DATA: The model K90 and K91 engines use the Carter model N carburetor; gasoline was the fuel source.