I've got a question.
I'm rebuilding a Kohler adjustable main jet carb on a replacement motor in my 125.
Here is a side pic to confirm what I have:
C1.jpgC2.jpgC3.jpg
So, here is the question. The original main jet needle has four holes at the top, and two at the bottom. I am going to replace the main jet, so I ordered one. In my parts book, it showed two listed. In the pics, it showed one with a spring, and the other didn't. I assumed that was the difference in the parts, so I ordered the one with the spring. Well, when I got it, the new needle valve only had one hole at the bottom, and two at the top. So, I ordered the other one. It came today, and sure enough, it is just like the original. My question is, since both are listed as needle valves for the K series Kohler carbs, why do they make the two different valves? Is it for a different application? Like perhaps a speed limiting, constant governor and the other for the variable speed governor like on the Cubs? I'm going to make a notation in my parts book, so I know which one is which. Just wondering why there are two different styles. Anyone?
Pics of the holes I am referring to. This is the old jet.
NJ2.jpgNJ1.2.2.jpg
Sorry the parts aren't clean yet. Just took them out of carb cleaner and haven't started scrubbing them yet.
