Quote:
by drysumpjet
starting a 16 horse that has been bored, head machined for a "clean-up" cut resulting in more compression and suffers the drag of a hydro in cold weather seems to benefit from the largest CA battery possible.
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How much off the head?
Was the block decked? If so how much?
What brand replacement piston? (Kohler-Stens-some other brand)
The battery I'm using in my Cubs is a Trac 390 cold crank battery. Crown battery makes Trac batteries. I buy them at my local ACE hardware store. My 149 had no starting problems last winter. The battery is 2 to 3 years old.
First thing that needs check out is the condiation of the wiring harness and the condiation of the starter in a Cub. Any good battery is worthless if one of the two or both are weak.