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  1. madman2021

    2008 maxum 1800 sr3 4.3 190hp prop

    Need a prop for my new ski boat. Still has the factory aluminum prop on it. Getting 5400 rpms(way to high needs to be 4800-5000 rpms) 49.6 mph. Hole shot is terrible, falls off plane under 27 mph, can't trim up at all without severe porpoising. Won't pull me up on a wakeboard(275lbs). Use to run...
  2. madman2021

    Motor choice wellcraft 250 sportsman?

    So I need to repower my wellcraft. Trying to decide on singles or twins. Mainly looking for fuel economy but don't want the boat to be an ice wagon. I'm looking at a single 200 yamaha hpdi or a pair of 90-115 johnson evinrude v4's. Boat came with a 200 omc seadrive. Would like to cruise 25-30...
  3. madman2021

    Need prop help 1990 boston whaler 25 walkaround

    So I just bought this 1990 boston whaler 25 walkaround wide body with whaler drive(actually have 2 of them now)Has twin 1997 yamaha 225 ox66 that run perfect. They have 4 blade 14x19p props on it. Top speed was 37 mph with a dirty bottom at 5100 rpms. Lots of cavitation with these props. Can't...
  4. madman2021

    How new of a evinrude/johnson will bolt to an omc seadrive?

    So I boat this 1989 wellcraft 250 sportsman that partially sunk in freshwater and was under for. 4 days. The motor is a 1989 omc 200 seadrive that was under water for the 4 days and Is junk. The seadrive unit however works perfect. I've always liked the seadrive and would like to keep it. What...
  5. madman2021

    Will Detroit 671's fit in trojan f32 flybridge??

    I found a deal on a trojan f32 that I'm going pickup tomorrow. Also found a deal on 2 running take outs Detroit 671's. Will these engines fit in this boat or are they wayy too big.
  6. madman2021

    Wellcraft 250 sportsman help putting in marine head

    I just bought a 1989 250 sportsman. I've taken out the old plastic tray type toilet and would like to put in a marine pump or electric toilet. Having a hard time finding a place for the tank and how to do it on this boat. I've found plenty of 250 sportsmans with electric and pump types but no...
  7. madman2021

    Yamaha digital gauge wiring

    I have a 2001 Yamaha 115 outboard a new Yamaha key switch , new Yamaha digital tach for 2004 and older outboards, new Yamaha digital speed gauge for 2004 and older outboards, new Yamaha main engine wiring harness, 2001 Yamaha 4 pin oil tank harness. What wiring harness's am I missing?
  8. madman2021

    Dual helms yamaha outboards

    I'm about to purchase a bayliner 2858 flybridge cruiser. My plan is to remove the the I/O system and put twin 250 yamaha ox66's. I need controls to put at both helms upper and lower. I'm unable to find any controls setup this way. Does yamaha make them?
  9. madman2021

    Has anyone used the pyle plbass8 or 10 powered subwoofer?

    Has anyone used pyles slim sub amp combo? I had 2 12's in my old boat with boxs and they hit really good. Don't have a lot of space in my south fork flat boat. But could mount 2 pyle plbass10's. here's the link. Pyle - PLBASS10 - 10-Inch Low-Profile Super Slim Active Amplified Subwoofer System...
  10. madman2021

    Flat boat prop questions

    I have a 18x60 center console aluminum flat boat. It has a 115 yamaha 2 stroke on a 6 inch jack plate. Turning a 13x19p prop I think, have to check on that. I'm turning 4900 rpms at 56 mph. Wot range is 4500-5500. Would like to get 60 out of her.
  11. madman2021

    Swap out mercruiser 140 to omc sea drive

    I have dumped hundreds of dollars every few months into my mercruiser 140 and I'm fed up with mercruiser products. Had $800 worth of work done to motor and outdrive last week and the last time I took it out the motor started devolping a rod knock and the main boot and outdrive seal busted...
  12. madman2021

    BW 1987 20 outrage max hp questions

    Happened to glance at the motor capacity plate on the 20 outrage while fishing today. It says Max hp 240 hp but my BW brochure says max 200 hp. I have a 225 hp Johnson ocean runner on it now, does 61 with just me and no gear. Loaded down with 4 people and gear maxed out at 47 mph. I'm wondering...
  13. madman2021

    Help finding dc electric motor for project

    I'm trying to create a electric long tail mud motor and I'm having trouble finding a suitable motor for it. Need a dc motor under 48 volts and to turn at least 2500 rpms. Something eqivilant to 5-15 hp gas motor.
  14. madman2021

    How much tongue weight for my boat

    I have a 1987 Boston whaler 20 outrage on a dual axle aluminum trailer. How much tongue weight am I sopposed to have? My dad is telling me 50-80 lbs but I think he's wrong. Ive had boats this size before And they had a few hundred lbs of tongue weight.
  15. madman2021

    Prop for 1987 Boston whaler 20 outrage

    I have a 1997 Johnson ocean runner 225 hp with a 21p 3 blade prop on my outrage 20 and My wot rpms are a little high. 6400 rpms at wot 51 mph. Range is 5000-6000 rpm wot. Motor is also to far down on the transom. Moving it up a few holes this weekend. Should I step up to a 23 pitch prop? Stick...
  16. madman2021

    Prop for flat boat Yamaha 115

    Just took out my 18x60 flat boat with the new motor. Has a 17 pitch SS prop on it. Top speed is 51 with the motor over reving. I need to go with a higher pitch prop but how big. Will have a tach soon
  17. madman2021

    What gauges for my Yamaha 115 2 stroke?

    I was told by a boat mechanic that only certain gauges fit my 2001 yamaha 115 2 stroke. Problem is I have no idea which ones do? Mostly looking for the cheapest set. Only want water psi, volt, mph, tach, and trim. Don't need any others.
  18. madman2021

    Keep my 115 yamaha 2 S or swap for 115 Suzuki 4S?

    Well after finally finding a suitable outboard for my boat a 2001 yamaha 115 2 stroke with 500 hours and really clean paid $2500 for it, my uncle is giving me his 2005 Suzuki 115 4 stroke with 300 hours. Wish I would have known this before I spent $2500. He's upgrading to a 150 Suzuki. Should I...
  19. madman2021

    Prop for 115 yamaha 2 stroke

    Which prop should I get for my 18x60 flat boat center console. Have a 115 Yamaha 2 stroke on a 6 inch jack plate. Boat is very light. Looking for a good all around prop. What pitch and how many blades.
  20. madman2021

    2003 yamaha 115 vs 2004 Johnson 90

    I'm looking to get a bigger motor for my 18x60 center console flat boat. I'm torn between the Johnson 2 stroke and the yamaha 2 stroke I'm looking at. I'm looking for the best reliability and fuel economy. I'm a die hard Johnson/evinrude guy but my dad has had a 225 yamaha ox66 for 12 years and...
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