You can count the bolts that are on the head. The six-bolt head fits the K-91 with a bore and stroke of 2.375 X 2.000; displacement of 8.86. The K-161 has 7 bolts on the head with a bore and stroke of 2.938 X 2.500; displacement of 16.94. The K-181 also has 7 bolts with a bore and stroke of 2.938 X 2.750; displacement of 18.64. The K-241 has 9 bolts with a bore and stroke of 3.251 X 2.875; displacement of 23.85. The K-301 has 10 bolts with a bore and stroke of 3.375 X 3.250; displacement of 29.07. The K-321 has 10 bolts with a bore and stroke of 3.500 X 3.250; displacement of 31. Let me know if you need more info as I have the manual on these Kohlers.
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Today's Featured Article - Diagnosing Engine Difficulty - Diesel Tractors - by Staff. The following suggestions are listed for your assistance. You can make simple adjustments on your tractor that will improve its operation and save you the time and expense of hiring someone to do it for you. Always make one adjustment at a time, and if the adjustment made does not improve the condition, return to the original setting before proceeding to the next adjustment. Hard Starting Cold air temperatures. Insufficient fuel.
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