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Engine[Kohler Magnum 18] starts and runs fine, but no power under

Engine[Kohler Magnum 18] starts and runs fine, but has no power under grass mowing load. Have redone fuel system, drained out old fuel, new filter and lines with no improvement. Suspect it may be coil,condenser,points, or spark plug lines. Suggestions? I need part #'s for the coil and points/condenser.
I live on an island with limited engine parts
Thanks,
.
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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 109 Answers

SOURCE: have a 20 HP twin cylinder KOHLER engine on CRAFTSMAN mower.

If you are able...have someone do a compression check on the engine. Usually if a mower is loosing power and it is a twin cylinder engine, one of the headgaskets may be blown.

Posted on May 28, 2009

woobie dog
  • 1273 Answers

SOURCE: 1976 JD 214 lawn mower Kohler engine K321AQS

When it shuts down crack the fuel cap and listen for the woosh of a vacuum on the fuel tank. If you hear this, clean the pinhole vent in the fuel cap, or replace it. Being partially plugged would cause you to be starved for fuel and could explain your issue, and why it goes away after a period of time.
Regards, --W/D--

Posted on Jul 19, 2009

  • 1 Answer

SOURCE: no spark at spark plug center of Coil

2000 ford escort ZX2. 4cyl . No spark at the spark plug. Wires are good.

Posted on Aug 29, 2009

  • 138 Answers

SOURCE: i have a craftsman gt 6000 with kohler 18 hp

Your carb is full of trash. you also probaly need to clean out the bottom of your fuel tank, blow out your lines and replace the fuel filter. I have 2 mowers with kohler engines and clean out the fuel tanks fuel lines and carbs 1 time a year. There is also a fuel shut solenoid on the carb this is normally problem if the engine does not run. but I am certain your problem is a simple fix, all you have to do is clean everything out in the fuel system.

Posted on Sep 13, 2009

mickey813
  • 472 Answers

SOURCE: Kohler courge sv720-0010 on cub cadet

SOUNDS LIKE IT HAS SOME BAD GAS YOU MAY NEED TO CLEAN THE CARB AND IT MAY NEED A KIT

Posted on Oct 12, 2009

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