I have a 2001 woods mow-n-machine that had a 22hp Kohler engine that crapped out. I’ve replaced it w a CV742 Kohler engine. Of course the wiring harnesses are different but when I broke it down, they both have the same white, green, red & purple wires. I matched color to color, wired the starter/solenoid, connected my ground & battery but got nothing. My starter has power, but I don’t have it at the key. Any suggestions?
Do you have it figured out yet?
There could be other issues going on that are making things not working correctly but Kohler wires are Kohler wires. The white, green, red and purple on your original engine will do the same thing on the replacement engine. The white is ground to kill. The green comes from the oil pressure sensor. The purple is your B+ charging lead. None of those are actually needed to make the engine run.
When you say the starter has power what exactly do you mean? Your engine has a solenoid shift starter on it which has the solenoid mounted right on the starter. The positive battery cable would connect to the large post of the starter solenoid. A smaller wire would be connected to the spade terminal to excite the solenoid when the key switch is turned to the start position. Typically also attached to that large post is a red wire. That same red wire (actually the other end of it) should be found at the wire harness connector where the engine and equipment plug into each other. The red wire in the engine harness connected to some wire on the equipment side of the harness. It may not have been red on the equipment side of the harness. It might have been brown or yellow or anything but probably not the same color as on the Kohler side of the plug. Regardless, the red wire on the Kohler side of the plug connected to some wire on the equipment side of the plug. Let's just pretend it was yellow. The red wire on the new Kohler engine would then of course have to connect to that same yellow (or whatever color it was) wire on the equipment side. That should send battery voltage back up to the key switch and from there the key switch can distribute the power to where ever the key switch position dictates. There actually may be two red wires at the Kohler plug, one slightly larger than the other. The larger one takes power to the key switch and would be fused. The smaller red one is bringing back to typically the fuel solenoid on the carb.
When the key switch is in the start position it should send voltage back down to the small spade terminal on the starter via the same wire that was originally connect to the small spade terminal on the original engine.
It's late and I may not be as clear as I could be so respond with any questions if I've muddied it up.
