SG
I like Kohler, have a 25 on my Hustler, and I hear great things about Walker, but once that 26 efi starts to sputter it turns into an endless cycle of , is it a ground wire, is it the senser in the muffler? The code that pops up , it hink it is code 34, covers 14 different problems.
I would make sure Bosh and Kohler have all the bugs worked out and I would look at serial numbers on the Kohler and make sure you get the latest issue. The Walker could be made this week with a Kohler made 15 months ago sitting in a warehouse. So look at both serial numbers, more important, the Kohler's