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Discussion Starter · #1 ·
I’m a bit under propped when I’m solo and the revs easily hit 6,000. A few times on very long runs it cuts out momentarily. The red light comes on and within a second it’s running again at full song.

I didn’t think these little motors had rev limiters but lm not sure. Any of you guys know?
 

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No idea if they have a rev limiter or not but if you are hitting 6k you might want to get a prop with an inch more pitch. It should solve your problem and give you a little more speed. You must have a really light boat if you are hitting it with a 9.9
 

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It's in the specs on the site.


HP / kW

  • 9.9 / 7.3
Engine type
  • Inline 2
Displacement (CID/CC)
  • 12.8 / 208
Full throttle RPM
  • 5000-6000
Fuel induction system
  • 2 valves per cylinder, single overhead cam (SOHC)
Alternator amp / Watt
  • 6 amp / 76 watt
Recommended fuel
  • 87 octane / up to 10% ethanol
Recommended oil
  • Mercury FourStroke Oil 10W-30
Engine protection operator warning system
  • Low oil pressure
  • Over-rev
Starting
  • Electric
  • Manual
 

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Discussion Starter · #4 ·
T
It's in the specs on the site.


HP / kW

  • 9.9 / 7.3
Engine type
  • Inline 2
Displacement (CID/CC)
  • 12.8 / 208
Full throttle RPM
  • 5000-6000
Fuel induction system
  • 2 valves per cylinder, single overhead cam (SOHC)
Alternator amp / Watt
  • 6 amp / 76 watt
Recommended fuel
  • 87 octane / up to 10% ethanol
Recommended oil
  • Mercury FourStroke Oil 10W-30
Engine protection operator warning system
  • Low oil pressure
  • Over-rev
Starting
  • Electric
  • Manual
thank you....new prop on order
 
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