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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 27086
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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What would be the top no-load rpm on & S #422437 1050 01

Customer Question

Good Morning:
What would be the top no-load rpm on B & S #422437 1050 01 84100512? I recently acquired this engine(looks new off the shelf, solid gray in color) and want to install it in an old "Rounder L-600" skid steer that currently has an old 16hp Onan(BF) engine. If you could help me out in with any info it would be greatly appreciated.
Thank you,
Rick B.
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.

Maximum rpm should be no more than 3600 rpm. That will give the maximum horsepower, but if you keep it down closer to 3400 rpm, it will last longer!