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    Gear Ratio Check

    I have a thought that maybe my Gear Ratio has been altered. How can I check the ratio to confirm? Reasons I think this: 1. The motor is now running mint after my electronic ignition conversion and timing correction. 2. The 16 x 17P prop is a slug on the boat and takes forever to plane. 3,000...
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    Electronic Ignition Conversion

    Any recommendations? There seems to be quite a few different types, price levels and manufacturers for these kits.
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    Spark Plug Help, please

    Engine Serial # 6829350 Mercruiser 140 HP, 1984 Recommended: Autolite 144 Removed: Autolite 404 The 144's will not fit the hole bore size. Is it possible the block and head and different serial #'s and not original. Maybe the block is older than the head. I am getting the serial # from the tag...
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    More Problems, need experts. Sputturing Engine.

    1984 Starcraft Islander 191 Mercruiser 140 HP Alpha 1 Engine ser# is 6829350 Ran the boat for about 1/2-hour yesterday tubing and well went well. Then I heard the motor sputtering and I started losing power. Exhaust smelled rich and I couldn't get the motor back running OK. PLaying around a...
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    Timing Marks

    1984 140 HP How many degrees are each mark? There appears to be 8-marks in advance and 4 behind zero. I believe they are 2-degrees per mark, but want to be sure and can't find the info anywhere.
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    What is the OEM Carb, Will Rochester Work?

    OK Got some better data now. 1984 Starcraft Islander 191 Mercruiser 140 HP Alpha 1 Engine ser# is 6829350 Current Carb is 13898490 New Roch Carb in box is 7041139 05711R1 So it appears the previous owner brought the Rochester based on the carb thats on the engine. It also appears that the...
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    Possible 3.0 Carb issue.

    The boat is a 1984 Starcraft Islander 191 1984 3.0 Mercruiser with Alpha 1 Outdrive. As far as I know, all is original. Motor rebuilt about 4-years ago, so the previous owner stated. I am new to this forum and am a rookie boater, but am a DIY person. The carb on it looks altered (Homemade gas...
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    Rookie Prop questions

    OK, I'm new to boating and have a concern here. WOT, 3,000 RPM max. Boat and gear "estimated" at 2500# Starcraft Islander 191, 1984 140 HP, 3.0 L Mercruiser and Alpha 1 outdrive. 1.89:1 ratio Motor list max RPM 4600. Prop. 16D x 17P The RPM is way off. I tried a friends prop (16D x 13P) and...
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    Anchoring Islander

    I just purchased an older Starcraft Islander 191 and am curious how to anchor this from the bow without using the hatch. The bow is unreachable without the hatch and I was thinking of building some type of guide system for the anchor line. If anyone has any ideas about this please let me know...
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