GearHead36
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- Joined
- Apr 26, 2023
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I have a Cub Cadet PRO Z 100 EFI 154-S (53RWEFJA050) with a Kohler Confidant EZT750 (747cc, 27HP, EFI) engine. I recently acquired a tachometer. I'm not sure that the idle and running RPMs are correct, so I'd like to set them. Anybody know the specs?
I found the following in the engine service manual:
- "Make sure maximum engine speed does not exceed 3750 RPM (no load)."
- "Standard idle speed setting for EFI engines is 1500 RPM, but certain applications might require a different setting. Check equipment manufacturer’s recommendation."
- Under the section titled "Test for Spark", "Crank engine over, establishing a minimum of 550-600 RPM, and observe tester(s) for spark."
- All the electrical tests are spec'ed to be performed at 3600 RPM.
I can't find anything in any of the Cub Cadet manuals. The only reference I found about the engine was this:
"Engine
Refer to the Engine Operator’s Manual for all engine maintenance intervals, procedures, specifications and instructions"
So do I use 1500 for idle, and 3600 for running? 575 and 3600? Does the running speed stay the same for different decks? I'd hope that they handled that with different deck pulleys.
I found the following in the engine service manual:
- "Make sure maximum engine speed does not exceed 3750 RPM (no load)."
- "Standard idle speed setting for EFI engines is 1500 RPM, but certain applications might require a different setting. Check equipment manufacturer’s recommendation."
- Under the section titled "Test for Spark", "Crank engine over, establishing a minimum of 550-600 RPM, and observe tester(s) for spark."
- All the electrical tests are spec'ed to be performed at 3600 RPM.
I can't find anything in any of the Cub Cadet manuals. The only reference I found about the engine was this:
"Engine
Refer to the Engine Operator’s Manual for all engine maintenance intervals, procedures, specifications and instructions"
So do I use 1500 for idle, and 3600 for running? 575 and 3600? Does the running speed stay the same for different decks? I'd hope that they handled that with different deck pulleys.
