Two cycle OBs seemed to love to run darn near wide open forever. What's the story on the 4 cycle versions?? Are they motorcycle high RPM engines or just small car motors that don't like much more than 3500 rpm diet?? I have a 115 HP , Mercury 2003, 4 stroke that I think has a Yamaha engine.
Whats the story on 4 stroke OB RPMs
- Thread starter pdecat
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