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K 241 carburetor

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jack casey

Well-known member
IHCC Supporter
Joined
Jun 15, 2022
Messages
91
Location
pearl river ny
The K241 is the carb on my Cadet 102, which is 56 yrs old. I assume it be oem. Engine is hard starting, the hardest starting one in my shed.
Does not want to run at idle even though I've adjusted:
High Speed screw - two turns counter-clock wise from closed.
Idle Screw - 1 1/2 turns counter clockwise from closed.
Put an ounce of Sea Foam in 1/4 tank of 93 octane and ran the engine at low speed for 50 minutes. Still won't run at idle.
I don't mind spending cash. Lemme know if I need a carb.
Cheers, Jack
 

mgonitzke

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Joined
Aug 4, 2006
Messages
4,333
Location
Wichita, KS
displayname
Matt Gonitzke
Carb needs cleaning and a carb kit, for starters.

Hard starting can also be caused by improper ignition timing. May as well check the valve lash, too.
 

dfrisk

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Joined
Nov 12, 2001
Messages
6,390
displayname
Dennis Frisk
Jack - You mention your K241 being 56 years old, I hope the carb had been removed and cleaned and rebuilt in that length of time. The OEM carb kit for the Carter carb has a new main fuel metering valve seat and base, new float hinge, all new gaskets. Most auto parts store sell gallon cans of carb cleaner solvent, with metal baskets to put all the carb parts in and soak them, especially the main body of the carb. A tooth brush or metal bristled brush help clean really dirty places on outside of the carb, small flexible wires can be pushed down drilled passages, the adjusting screws should be removed and a spray can of carb cleaner with a plastic tube shot down every passage in the carb. Don't let the carb soak in the carb cleaner too long, over-night is plenty, I've heard stories of carbs "Dissolving" if left in the solvent a week or a month, or a year.
There's no reason your K241 can't run like new with your carb rebuilt.
 

jack casey

Well-known member
IHCC Supporter
Joined
Jun 15, 2022
Messages
91
Location
pearl river ny
The K241 is the carb on my Cadet 102, which is 56 yrs old. I assume it be oem. Engine is hard starting, the hardest starting one in my shed.
Does not want to run at idle even though I've adjusted:
High Speed screw - two turns counter-clock wise from closed.
Idle Screw - 1 1/2 turns counter clockwise from closed.
Put an ounce of Sea Foam in 1/4 tank of 93 octane and ran the engine at low speed for 50 minutes. Still won't run at idle.
I don't mind spending cash. Lemme know if I need a carb.
Cheers, Jack
Ok, carb is a Kohler Adjustable Jet, not a Walbro. Above, I should have said it ran rich. Used the Blue Ribbon Svc manual, pg 1-20, to adjust the jets - Low 1 1/2 turns and Hi 2 turns. Still rich. Just saw in my Kohler Engines (K series) manual on pg 6-14, Low 2 1/2 turns and Hi 2 turns. Quite a difference in low idle. We having three rainy days and can't leave tractor outside as hood is off for refinishing. Report later.
Cheers
 

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