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  1. J

    Tach and Throttle Issues on Old Boat

    I crawled under the dash to measure the tach, and found something a little surprising. The original tach has a date on it. 9/11/1968! This boat that was sold to me as a 1980, but actually seems to be a 1977, has a 1968 tach in it. I looked into the throttle a bit closer, and found it is actually...
  2. J

    Tach and Throttle Issues on Old Boat

    Well, I've been a boat owner for about a week, so it's time for things to start breaking. 1977(ish) Larson with 120hp Merc I/O. 1st issue I noticed when shaking it down was the tach is nowhere near accurate. It says I'm idling at 3000 rpm. Everything in this boat is original, so I know it's not...
  3. J

    Bought a Larson tri-hull, but can't seem to figure out what it is.

    Now that I have the magic number of posts, here's a couple of pics. As you can see, this tag is on the inside of the transom. It's the only thing I can find.
  4. J

    Bought a Larson tri-hull, but can't seem to figure out what it is.

    Hello there forum. I bought what I was told is a 1980 Larson 18ft tri-hull. However, I think it's quite a bit older than that. There isn't any hull number on it on the outside of the transom. I found a tag on the inside of the transom with a 6 digit id number on it. It has a 120hp i/o in it, and...
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