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Author Topic: identify a kohler  (Read 3913 times)

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Offline larry reddinger

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identify a kohler
« on: April 21, 2013, 08:21:23 pm »
I'm looking at a horizontal kohler twin his can you identify it without heads or shroud what are the piston sizes for different hp rating. Thanks
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Larry :chris:

Offline sporty

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Re: identify a kohler
« Reply #1 on: April 21, 2013, 10:28:43 pm »
I think...

18/20 HP is 3.03
23 HP is 3.15
25-30 HP is 3.27
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Chris Gatesman

Offline stahlwerks

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Re: identify a kohler
« Reply #2 on: May 08, 2013, 11:53:48 pm »
18/20HP are 77 mm bore x 67 mm
23hp are 80 mm x 67 mm stroke
25, 26, 27 and 30 are 83 mm bore x 67 mm stroke except for the 30hp which is 68.5 mm stroke
Vertical blocks are different then the horizontal, but most internal parts interchange.
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