Best mowing RPM for Kohler 25hp Courage

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fox5flyer

Member
Hi. I'm a newbie from NE Michigan.
I have a Husqvarna MZ5225 ZT mower and am planning to install a tach. Reason is, I need to figure out the optimum RPM for best tip speed of the blades. I'm not a commercial mower, but I have a lot to mow and I've learned that keeping the blades sharp and RPMs up will give the best performance and efficiency. I use full synthetic oil.
Once I install the tach, can anyone tell me what RPM I should be running with a formula to determine my blade tip speeds so that I'm not just guessing?
There must be one of you techies out there who would like to tackle this one.
Thanks in advance
Deke
 
The optimum engine speed is whatever the factory set the rpms of the engine at. they have designed everything to work together to get the best output.
 
ILENGINE said:
The optimum engine speed is whatever the factory set the rpms of the engine at. they have designed everything to work together to get the best output.
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Hey, thanks for the response. Am I understanding you correctly that full power is where I should be operating without regard to RPMs and assume that is optimum?
Deke
 
Yes WOT (Wide Open Throttle) Then check your RPMs on the tachometer. RPMs may be different with a load like cutting grass then standing still without a load.
 
Everything on a mower is made to operate at full throttle even the engine.

Most mower manuals will tell you to never operate the blades at less then full throttle.
 
Carscw said:
Everything on a mower is made to operate at full throttle even the engine.

Most mower manuals will tell you to never operate the blades at less then full throttle.
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Thanks. I appreciate your response. What I am really looking for is what that full throttle rpm is supposed to be.
Deke
 
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