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  • small power for 21

    Has anyone been on a 21 with a smaller engine say 115-120 2stroke?

    all my fishing is within 10 miles of shore and most within 3 miles.

    the chop here on lake michigan allows for a comfortable cruse of 25 mph tops on many days. With the right prop do you guys think a 115 will plane off ok and cruise at 25mph or so?? I put a deposit on a late 90s yamaha 115 with very low freshwater hours.(1500$) yes it is a 25 inch shaft. Just wanted other opinions. dave.
    [br]1994 Mako 215 Dual console Optimax 225[br]1978 Mako 19 with 90hp johnson[br]1996 Mako 22[br]1982 Mako 171 Angler 135 Black Max Mercury[br]1987 21b 225 Yamaha[br]1974 23 inboard Gusto gone.[br]1979m21 225johnson \"blue dolphin\" bought off this board and restored [br]with everyone\'s help!!Gone but not Forgotten....[br]1979 20 Mako 115 Suzuki gone[br]1977 19 Mako 115 Johnson gone[br]1976 23 Mako twin 140 Johnsons gone[br]1983 224 with closed transom and bracket[br]And 162 SOB (some other boats)[br]Venice Florida, Traverse city Mi.

  • #2
    I have the same hull and a 200 Evinrude is doing some work @ 25mph,

    My guess is a 115 will have a hard time planning off and running that fast. Never been on a boat powered like that though, so it's just my guess.

    Good deal on the motor, maybe you can turn it over for some profit.
    1983 21b[br]Waveland,MS

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    • #3
      anybody else have any ideas/comments. shurly someone has seen or been on a lower powered 21? Thanks dave.
      [br]1994 Mako 215 Dual console Optimax 225[br]1978 Mako 19 with 90hp johnson[br]1996 Mako 22[br]1982 Mako 171 Angler 135 Black Max Mercury[br]1987 21b 225 Yamaha[br]1974 23 inboard Gusto gone.[br]1979m21 225johnson \"blue dolphin\" bought off this board and restored [br]with everyone\'s help!!Gone but not Forgotten....[br]1979 20 Mako 115 Suzuki gone[br]1977 19 Mako 115 Johnson gone[br]1976 23 Mako twin 140 Johnsons gone[br]1983 224 with closed transom and bracket[br]And 162 SOB (some other boats)[br]Venice Florida, Traverse city Mi.

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      • #4
        175 is minimum om a 21. And it will be working it's azz off.

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        • #5
          I feel my Suz DT 140 is barely minimum for my 20 (rated for 200). Me alone, half fuel, minimal gear, flat & no wind, I get 32 knots gps. So no way would I think of putting a 115 on a 21.

          See if you can get a used 175 somewhere.
          NYC & L.I. - 1974 \"Classic\" Mako 20\' - Suzuki 2006 DF150 - Fly & Light Tackle, C&R[br]My boat: http://www.classicmako.com/forum/topic.asp?TOPIC_ID=23444#159594[br]Personal website: http://www.georgemcauliffe.com/

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          • #6
            Same advice here - get a larger hp engine.

            My Mako 201 is powered with a 150 hp Johnson, and it's just ok power.

            Top speed with T Top on is 35.3 mph, cruises at 27mph.

            Cries for a 200 hp.

            So, drop down to a 115 - probably need full or nearly full throttle just to keep it on full plane.

            The key to some degree is the hull type, and weight of boat.

            If it's a light, modified V hull, you might get by. I doubt it though. Good luck.

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            • #7
              I am hearing a consinses here. Might have to rethink my plans. would love to try it though. althouth it might be disapointing.
              [br]1994 Mako 215 Dual console Optimax 225[br]1978 Mako 19 with 90hp johnson[br]1996 Mako 22[br]1982 Mako 171 Angler 135 Black Max Mercury[br]1987 21b 225 Yamaha[br]1974 23 inboard Gusto gone.[br]1979m21 225johnson \"blue dolphin\" bought off this board and restored [br]with everyone\'s help!!Gone but not Forgotten....[br]1979 20 Mako 115 Suzuki gone[br]1977 19 Mako 115 Johnson gone[br]1976 23 Mako twin 140 Johnsons gone[br]1983 224 with closed transom and bracket[br]And 162 SOB (some other boats)[br]Venice Florida, Traverse city Mi.

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              • #8
                When I had the Yamaha 200 onmy Mako 21... a normal fishing load, myself and two passengers... I had hell getting her on plane and even more trouble keeping her on top in rough conditions.

                175-200 HP is the minumum. Thats a really heavy 21' hull its needs power. I honestly don't think anything less than 150 will get her on plane period.
                Slidell, LA 1993 Mako 261B - Temperance

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                • #9
                  I have a 115 on my 20' and that is really the minimum for this boat by all means. A suitable HP for the 20' is really a 150, so I can't image that a 115 would do much on a 21'. There have been several times in the chop when I wished I had a little bit more power to push through.

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                  • #10
                    Absolutely guys - it's not just about going fast, and top end.

                    Regarding Mako 20 footers, I believe we're talking about two

                    different 20's.

                    My 20' is actually the model 1994 model 201 ( 20'4" ) which is a deep V, with recessed tabs, weighs 2,150 lbs, holds 100 gallons of fuel, and max rated hp is 200.

                    I believe there's been another 20' model that's a bit lighter, or

                    less deep. Please let me know.

                    Regards

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                    • #11
                      Wow

                      Talk about want to re think about motor size

                      21' 2100 lbs + 86 gal of fuel at 6lb per + motor 375lbs = 2991lbs with no body or gear in boat

                      19' 1525 lbs + 32 gal of fuel at 6lb per + motor 375lbs = 2092lbs

                      with no body or gear in boat.

                      now I'm thinking about what size motor I will need. I was wanting

                      a suz dt 140 now maybe some thing around a 175
                      Slim[br]Lafayette [br]1973 19-6 Aquasport[br]An a few Makos[br]

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                      • #12
                        I am rethinking my hp needs, I am going to look at a 94 225 ocean pro next week. 25 inch outboards are real hard to come by up here(used). I really dont want a older saltwater unit if I can keep from it. I am trying to stay around 2000 dollars.
                        [br]1994 Mako 215 Dual console Optimax 225[br]1978 Mako 19 with 90hp johnson[br]1996 Mako 22[br]1982 Mako 171 Angler 135 Black Max Mercury[br]1987 21b 225 Yamaha[br]1974 23 inboard Gusto gone.[br]1979m21 225johnson \"blue dolphin\" bought off this board and restored [br]with everyone\'s help!!Gone but not Forgotten....[br]1979 20 Mako 115 Suzuki gone[br]1977 19 Mako 115 Johnson gone[br]1976 23 Mako twin 140 Johnsons gone[br]1983 224 with closed transom and bracket[br]And 162 SOB (some other boats)[br]Venice Florida, Traverse city Mi.

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                        • #13
                          Dave, 2000 is cheap for an outboard of that size. You will probly end up with someone else's problems. Remember...you get what you pay for[] Tony
                          79 Mako 23[br]85 Wellcraft 18 fisherman[br]Hammond, La.

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                          • #14
                            Well I think this is one time I will take the advice of all those that posted. I have been looking for a larger 25 inch engine and think i found one today. 1996 johnson 225 400 hours. good compression runs good idles poorly doesnt pump water well. 2000 bucks. I am a better mechanic than banker. dave.
                            [br]1994 Mako 215 Dual console Optimax 225[br]1978 Mako 19 with 90hp johnson[br]1996 Mako 22[br]1982 Mako 171 Angler 135 Black Max Mercury[br]1987 21b 225 Yamaha[br]1974 23 inboard Gusto gone.[br]1979m21 225johnson \"blue dolphin\" bought off this board and restored [br]with everyone\'s help!!Gone but not Forgotten....[br]1979 20 Mako 115 Suzuki gone[br]1977 19 Mako 115 Johnson gone[br]1976 23 Mako twin 140 Johnsons gone[br]1983 224 with closed transom and bracket[br]And 162 SOB (some other boats)[br]Venice Florida, Traverse city Mi.

                            Comment


                            • #15
                              If you're "OK" with an older motor, I have a completely rebuilt (approx 15 hours) 235 Johnson for sale in the classifieds. It was the original motor from my '83 224 (the boat/motor was sold new in Sandusky, OH and remained on Lake Erie, until I purchased it from The Toledo area two winters ago.)

                              I'd also like to chime in on power... Too much is never enough...

                              The reason I'm getting rid of the 235, is that it could not pull skiers when on altitude lakes. At sea level, and up to about 2000 ft elevation, it would pull my 224 in the mid 40's.

                              But at 4000 ft, it had some "breathing difficulties", and was low on grunt needed. I ended up with twin DF-140's, and would LOVE to have more HP, but am satisfied with the results just the same.

                              Good Luck
                              quote:


                              Originally posted by michigan dave


                              Well I think this is one time I will take the advice of all those that posted. I have been looking for a larger 25 inch engine and think i found one today. 1996 johnson 225 400 hours. good compression runs good idles poorly doesnt pump water well. 2000 bucks. I am a better mechanic than banker. dave.



                              Working for a livin\' is HIGHLY Over-Rated...[][br]

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