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post #8 of Old 04-08-2008
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Originally Posted by artbyjody View Post
In general most Yanmars operate at cruising at 2300-2500 RPM - anything above and beyond will just burn more fuel without any truly appreciated returns in speed.
It's not just about speed. It's about doing what's mechanically best for the motor. Under-revving a small diesel has a number of ill effects.


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