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1987 200 Johnson Ocean Runner

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  • 1987 200 Johnson Ocean Runner

    Hello all,

    I am new to boating and purchased my first boat last summer. Its a 1977 21' Mako with a 1987 200 Johnson Ocean Runner.. It ran great all Summer - towards the end of the Summer I noticed it was burning blue smoke a little longer than normal when I started her up... The other issue is that 50% of the time is stall's when I drop it into neutral -- very nerve wracking for a new boat owner when docking (it always fires right back up). Its out of the water now - i am looking for suggestions on how to prepare for the 2017 season and don't want to get totally ripped off by a mechanic...

    Thanks~

    Tom

  • #2
    I encourage folks to change their spark plugs twice a season, with the proper plug and gap. If your still running the VRO oil injection you may have a problem with the oiler pump. When they fail they tend to over oil. On an engine of that age, I would seriously consider removing the oil injection and running 50:1 premix.

    If you dont know how old the water pump impeller is you may want to consider changing it, along with the lower unit lube. ALWAYS put anti seize on every bolt you remove. You may want to run a compression check also to get a baseline health estimate on your engine. Those were good although thirsty engines. but all 2 strokes are a bit thirsty...

    d
    [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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    • #3
      quote:


      Originally posted by michigan dave


      I encourage folks to change their spark plugs twice a season, with the proper plug and gap. If your still running the VRO oil injection you may have a problem with the oiler pump. When they fail they tend to over oil. On an engine of that age, I would seriously consider removing the oil injection and running 50:1 premix.


      If you dont know how old the water pump impeller is you may want to consider changing it, along with the lower unit lube. ALWAYS put anti seize on every bolt you remove. You may want to run a compression check also to get a baseline health estimate on your engine. Those were good although thirsty engines. but all 2 strokes are a bit thirsty...

      d


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      • #4
        Thanks Michigan Dave. I will have this conversation with the mechanic in the Spring. Ball park figures, what would all of this work cost if I do it before dropping her back in the water. Its moored, and I don't have a trailer so I would like to address it before its back in the water.

        I really appreciate your insight.

        Tom

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        • #5
          The stalling when coming back to neutral suggests dirty carbs to me. The excess blue smoke could just be regular 2-stroke oil or as Dave suggests tied to the VRO over-oiling, which could also contribute to plug fouling and rough idle / stalling.
          ROGUE I[br]1978 235 CC[br]Newburyport, MA[br]ROGUE II[br]1987 17\' Montauk[br]Camden, ME[br]

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