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  1. J

    Need advice on fine tuning a new pontoon (minor cavitation)

    Yeah… two prop bookends!… Ran with 9 on board just now. Full throttle rpm was 5900…so the 3 blade, 16x12 is it for now. Slip is probably close to 20% however. Wonder what the 4, 14x12 would do….next year maybe….
  2. J

    Need advice on fine tuning a new pontoon (minor cavitation)

    24' '07 pontoon here. 25", twin tube, now equipped with a 2021 115 hp CT. It was mounted with the possibility of lowering the motor one more hole....which I did because of cavitation at higher rpm's, turning and any attempt at trimming up....... that is now all fixed. I would like to see a...
  3. J

    Trim Tabs Killing All Power

    hmm... Well, when I trimmed my earlier 60 hp merc. outboard ( which was the factory equipped motor in '07)....and now my new 115 hp merc. outboard on my '07 pontoon, there is a big noticeable draw on the current. It doesn't kill the motor, but I've always wondered if there is something going on...
  4. J

    Do you use non ethanol gas ?

    yes , I used/use ethanol gas in my '05 merc. 60 hp and now my new 115 hp merc. no, I haven't have, nor did have, any issues..........yet.. Yes, I maintain all my equipment.....Yes, I use a stabilizer for winter storage in all my gas engined devices.....except my cars......they always start in...
  5. J

    Jon boat trailer wheel wobble.

    minimum issue could just be they are not tightened properly. Worst case would be worn bearings/ races. Neither scenario looks like they are greased properly also. If the hubs and spindle are ok, replace the bearings/ races, pack and tighten them as required . Use new grease seals.
  6. J

    Outboard issue

    yeah, what he says......all suspect....vibration? I'd say cylinder deactivation. maybe the bigger problem is the dealer......they should be able to diagnose that easily ( my opinion)...My understanding is that these engines set trouble codes just like cars, the dealer reads this and starts his...
  7. J

    Outboard issue

    Unless I'm missing something, your engine is not over-revving. so it isnt beeping and reducing power for that reason. My 60 hp merc didn't and my new 115hp merc doesnt start beeping until over 6100rpm . I'm guessing you are advancing the throttle, or trying to, past the 4000 rpm mark, it isn't...
  8. J

    smartcraft tach lcd

    Smartcraft tach on my pontoon boat , mercury smartcraft 2021 115 CT 4 stroke. You can't hardly see the lcd display and I just replaced this display about a month ago. I have another display coming for one more try. Contrast and brightness have been adjusted to no avail. All functions work. This...
  9. J

    2002 princecraft 24 ft 115hp

    so, 5 years ago I bought an '07 24' pontoon with a 60hp merc, tandem trailer. Double bimini top, full enclosure, showing their age but not ripped or torn. seats and carpet good shape, no rips, holes,etc. Toons in nice shape 25" diameters....$14,000...... so, not a bad price...is it with a...
  10. J

    Outboard issue

    you bought the boat....when?.....it had this motor on it?.....or how long have you had the boat/ motor combination.....Was it always doing this?... or did it just show up this last year....so it wasn't doing this the first 3 years? ....sorry....I like to know history before I make a comment I...
  11. J

    Pontoon 20’ long bunks

    not to hijack....just spent the day re-doing my pontoon trailer's bunks......that i just re-did last week.....yeah, 5 of the 8, 2x6x8 bunks were new PT........
  12. J

    Foam in toons or safety gauge to detect leak

    Yep...I'd just use my shop vac and a jury rigged clear vinyl hose from the hardware store...
  13. J

    Foam in toons or safety gauge to detect leak

    I learned this "trick" this spring while getting my pontoon ready for the season. Each toon has 3 compartments with a plastic plug on top. After 4 plus years of owning this '07 toon, I was gonna do the "pressure test" which was gonna be a process. When I began to remove a plug, air hissed out of...
  14. J

    Bunk Bolts

    I just re-carpeted all the bunks on my trailer and replaced the ones that were damaged. The trailer is a Karavan, that came with the 2007 Lowe , 24' pontoon boat I have. The bunks are 2x6x8'..pressure treated, and they used galvanized, 1/2 lag bolts. I had to shorten the new bolts a little to...
  15. J

    115 Pro XS Command Thrust on a pontoon - prop?

    welll...now that you brought up tow bars and interference.....this is what i have, and I was able to put my new merc 115 on my pontoon keeping the same bar I had on with the 60 hp merc.....the bar pivots up with the motor also when parked and trailering...........but if you're not using it....
  16. J

    115 Pro XS Command Thrust on a pontoon - prop?

    to dcwilson: remember, my pontoon boat is 24' and yours is 22', so the same prop and motor is gonna have different results for us..... to texas: that's why I made runs in both directions......it's not speed I'm aiming for, it's rpm performance under a certain load.....reporting speed is just for...
  17. J

    Ventilation problem

    I dont know johnson outboards, but I've become fairly involved and knowledgeable with propping my new merc. 115 hp, CT. . I learned a lot. what prop ..diameter, pitch, and blades were you running that didn't have ventilation issues and what do you have now? I learned my gearcase size...
  18. J

    115 Pro XS Command Thrust on a pontoon - prop?

    So, the wind was blowing against the current. the speed is gps. I saw the 27 mph@6000 heading into the wind but with the current.....I saw 25mph@ about 58-5900 rpm against the current but with the wind.....the water was rough, I was getting sprayed, and more concentrated on making sure i didn't...
  19. J

    115 Pro XS Command Thrust on a pontoon - prop?

    it's a money and time thing vs what's gained. So a 15x14 3 blade maybe....but I already know a 14x14 4 blade doesn't work, So I needed a 14x13 4 blade, which, arithmetic wise, is = to the 15x13 3 blade which = a 16x12 3 blade... , that's what my calc's said I needed was a 16x12 3 blade..but a...
  20. J

    115 Pro XS Command Thrust on a pontoon - prop?

    That's great..happy for you. There are no 3 blade, stainless, 16x13 , 43/4 in. gearcase props that I can see. The cheapest SS (solas) , new, I saw was $302..... $167 for mine......It's a pontoon....
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