Originally Posted by Capt. Gary Randall
idle RPM should be 550 to 600 apparently you posted this right before I posted to you...lol
No it should not. That is HALF what the idle RPM on an M-25 should be.
The entire Universal M-25 line up, including the M-25, M-25XP and M-25-XPB are all 1000-1200 RPM for idle speed, per Westerbeke specifications.