2007 Cub Cadet with 23hp Kohler 2 cyl. Mower runs about and hour or so then cuts off. Now it runs rough with no power. It backfired once and smoothed out for a while, but is doing the same again.
New carb, fuel filter, air filter, fuel pump, fuel lines
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That is called 'surging' or 'hunting', and is often caused by an air leak in the inlet manifold letting extra air in. Backfiring can also be a result as a lean mixture (too much air) is suddenly ignited in the exhaust. If it is backfiring through the carburetor, the is usually bad timing.
It is only going to go about 5 miles per hour. If you wanted something faster you should have gotten a zero turn mower. You can get it to go a little faster by untightening the clamp on the engine that holds the throttle cable and moving the cable forward a little. Most mower engines are set up to only run at about 2/3 throttle from the factory.
Cub Cadet has five models in their new Series 1000 lawn tractors, all
powered by Kohler engines. Cub Cadet models -- as several other lawn
equipment brands -- are manufactured by MTD Products.
The Cub
Cadet LT 1045 has a 20-hp Kohler single-cylinder engine, with an
aluminum block and cast-iron sleeve for longer life. It has a
full-pressure lubrication system with spin-on oil filter for easier
maintenance. This engine is not as powerful or as long lasting as the
Kohler V-Twin OHV, which is available in other models in the line, but
the LT 1045's engine is still solid enough to provide years of mowing.
The hydrostatic (automatic) transmission is a good match with the
engine and provides sufficient grip to cut grass on moderate inclines.
Power is transferred from the engine to the transmission by a heavy-duty
Kevlar belt rather than a more expensive shaft drive. A Kevlar belt
also drives the three cutting blades.
The mowing deck cuts a
swath of grass 46 inches wide at one pass, and is removable for service
and cleaning. Four anti-scalping wheels help keep the deck from scalping
grass on uneven ground. The cutting height is manually adjusted from
1-1/2 to 4 inches. The turning radius is 18 inches, which standard for
lawn tractors. This model is intended for use on 1- to 2-acre lawns
without many turns or small obstacles.
This usually means that is's been overfilled with oil, or the engine has been tipped enough for oil to run into the cylinder. Drain oil if it's above the line at all, and the problem will go away once the oil's burned out of the cylinder.
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