The Kohler Company in 1920 started out deal engine source for rural farms and home . In the later 1940s , Kohler thrive its product bloodline with stick out - alone engines for industrial and agricultural machinery , and in the 1980s and nineties further expanded into engine for commercial and consumer yard and garden equipment . The Kohler CV491 and CV491S engines are part of a totally redesigned argumentation of Kohler locomotive first launched in the 1990s .
Engine Difference
The departure between the CV491 and CV491S is that the 491S is outfit with a 12 - volt electric starter in place of a manual - pull backlash crank . Otherwise , the two engines are selfsame . The " C " in the locomotive ' model naming stands for the Command Series , the " quintuplet " means it is a vertical shaft locomotive engine and the " 491 " is the displacement in cubic centimeters . The " S " suffix on the 491S denominate an electric start engine .
Other Data
The engines ' nameplate also has a 5 - digit specification number designating which of several twelve varieties your locomotive is among . Kohler made minor magnetic declination of the basic locomotive to fit these locomotive engine to specific equipment manufacturers ' specification . There also will be a 10 - figure serial number with the first two digits designate year of manufacture and the other eight fingerbreadth designate your locomotive ’s place in the output sequence for that class .
General Specifications
The CV491 and 491S are single - cylinder , overhead valve , melodic line - cool down petrol engines producing 17.5 horsepower from a 29.9 cubic inch displacement . They have a 3.6 - inch bore , a 3.03 - inch stroke and an 8.5:1 concretion ratio , producing 28 foot . per pound of torque at 2,400 rev . Some varieties of these engines are fit to go on propane rather than gasoline . The engines ' crankcase holds 2 quarts of oil and they are equipped with a replaceable full - flow oil filter . An optional oil colour varan either keep out down the engine or activates a warning igniter when petroleum pressure shed too low-down . The engine have a replaceable high - density newspaper air travel filter with an optional oil froth aura precleaner that besiege the composition element .
Other Features
The petrol engines are equipped with a float - character , fixed - jet carburettor . Some change are equipped with an railway locomotive - drive mechanically skillful fuel ticker while others rely on gravity fuel provender . Propane engines have a determine - jet propane carburetor and dry gas governor fed from a pressurized fuel bottle . The CV491 and 491S have a full - pressure sensation pump lubrication system . Fuel is take fire by a spark plug power by an electronically - time flywheel magneto inflammation arrangement . Some of these engines are equipped with Kohler ’s optional Emission Sentry defilement command arrangement .
