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  1. B

    Low rpm

    Thanks
  2. B

    Low rpm

    Thanks
  3. B

    Low rpm

    I just run it through marine engine. Com and it lists 9 thru 17 pitch . I'm not set on a 17 . I just want the best performance, top end speed if needed, cruise speed for less fuel consumption
  4. B

    Low rpm

    40 hp max motor 850 lbs max weight
  5. B

    Low rpm

    I had this rpm gauge installed a couple months ago by boat mechanic, it's the same one that came with the motor. How should the tach be set , pulse etc.
  6. B

    Low rpm

    Ok thanks
  7. B

    Low rpm

    Thanks , can I change the gear configuration
  8. B

    Low rpm

    Well , it did on my Baja when I switched to the 21 pitch it would over Rev at hole shot , had to back off a bit until I got some speed
  9. B

    Low rpm

    Motor is short shaft not mother, yes cavitation plate is bottom and center How can I find out the gear configuration? Model # 0T518996 for the 40 hp mercury max rpm 5500 and 0t935153, 25 hp 6000 max rpm
  10. B

    Low rpm

    Also , I would think I'd get cavitation on wot take off like I have before on other boats if to much pitch ? Wouldn't you?
  11. B

    Low rpm

    What do you suggest ? 135 compression on both cylinders ? Timing is supposed to be correct set by shop mechanic ?
  12. B

    Low rpm

    2002 _ 2 stroke
  13. B

    Low rpm

    Sorry, my mother is a short shaft and rated max 40 hp . Just tuned and timed it . Runs great, no cavitation from wot take off ? I've had boats where I use my 19 for pulling skies and my 21 pitch for speed / less gas consumption, Baya spelt wrong, 19 ft. I've always had 2 props
  14. B

    Low rpm

    Yes , both long shaft measuring the same
  15. B

    Low rpm

    What i meant was this 40 hp came off a pontoon with a 13 pitch prop. I put a new 17 pitch and it should do better than what its doing. No Cavitation. No slipping ??? Barry
  16. B

    Low rpm

    Had a 13 , came off a pontoon barge . Lucky to get 19 mph with 13
  17. B

    Low rpm

    I have a tracker v14 with cockpit. Just took off 25 hp mercury 2 stroke and hung a 40 hp mercury 2 stroke, only about 5 mph speed increase and 3900 rpms with 17 pitch prop. I just raised the motor 2 inches. Will that help with rpms and speed? I was hoping for 5000 rpms and 35 mph at wot with 17...
  18. B

    Mercury outboard 2 stroke

    Ok thanks, I'll figure it out i hope 🙏
  19. B

    Mercury outboard 2 stroke

    Ok , maybe someone on here has the procedure I hope Thanks anyway
  20. B

    Mercury outboard 2 stroke

    Lol , I agree . It's not real clear I about got her right now Suggestions on adjusting cam roller
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