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Cub 100 carb question

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dschwandt

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David Schwandt
3 listed in my parts book TC-113 issued 10/77

391-077-r91 3738s

385-390-r91 3408s order #391-077-r91

391-081-r91 3737s

Confused yet??
 

lpalma

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It should have a Kohler # on the carb, unless you are missing the carb...
Otherwise Its original # is E-235058 superceded to 47 053 12, 47 853 21-S.
 
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dschwandt

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Where did you come up with that number Lew?
These all came out of my Cub Cadet parts book as stated.
And can also be found on the on-line parts look up.
The ones that end with an s are carter #'s
 

lpalma

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I have a 1970 Kohler K241 parts manual. Covers all special numbers at that tlme.
 

Mark Leaming

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I have searched and it appears there is no oem carb available for the k 241? Thanks for all your help.
 

mgonitzke

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You probably can't buy one new from Kohler anymore, and if you could, it'd be a non-adjustable POS. Your options are:

1. Good used OEM carb + rebuild kit
2. Good aftermarket carb (CC Specialties, Isavetractors, etc)
3. Cheap Amazon/ePay knockoff from Chairman Mao's carburetor emporium that may or may not work and is almost certainly not compatible with any rebuild kit

Option 1 would be my preference.
 

JPrattico

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JPrattico

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Jonn, that is about the same carb as above and on my 107. Again, still would have to mount that throttle ball joint to the throttle arm.

The ball is essentially press fitted and then mushroomed slightly onto the throttle arm, so to remove it from my old carb I simply used a file to remove just enough material so that I could use a hammer and punch to drive it out. I then cleaned it up with the file and tapped it into the hole on the throttle arm of the new carb.

Because I left a decent amount of original material on it, it stayed put. But just to be safe, I took my soldering iron and soldered the bottom of it to the underside of the throttle arm. Just a bit of insurance, worked well and because it's underneath, you can't see the solder!
 

JPrattico

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That's why you'd have to take that ball off the old carb and attach it to the new one.

I would think all the carbs have a standard SAE thread size, but even if they don't, the aftermarket carbs all seem to come with a 90 degree fitting that fits the threads.
 

Mark Leaming

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That's why you'd have to take that ball off the old carb and attach it to the new one.

I would think all the carbs have a standard SAE thread size, but even if they don't, the aftermarket carbs all seem to come with a 90 degree fitting that fits the threads.
I’ve read some of them are not sae threads.
 
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