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Author Topic: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap) Updated April 16  (Read 10706 times)

EricR

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Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
« Reply #90 on: January 12, 2017, 02:04:08 AM »
Awesome place to live.  8)

Growing up in the great frozen north of MN I lived half way between the "big town" of 350 and the small town of 150 or so. The small town had a big hay field adjacent and the owners of the farm gave permission, and I think the kids in that town were allowed to ride in that field, about ten acres pancaked flat!

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I scatter them from the midwest to south of the Mason Dixon

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    Cariboo Skidoo

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #91 on: January 13, 2017, 11:14:09 PM »
    I am your 87th subscriber.
    1973 Skidoo Elan 250T ( father purchased new, Rotax 377 )
    1969 Skidoo Olympic 12/3 ( Yamaha 340 )
    1968 Skidoo Super Olympique E ( project )
    1971 Skidoo Olympic 335 ( garden tractor rat project )
    1972 Evinrude Norseman 437 ( longtrack project )

    Cariboo Skidoo

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #92 on: January 13, 2017, 11:21:16 PM »
       Looks better with the crappy wind shield. At least my hands will be warmer.  I think I'll replace it with a tall clear one eventually. Also thinking about installing the front and rear chrome bumpers and the headlight. And my leafs springs feel like marshmallow. Gotta deal with that.

    « Last Edit: January 13, 2017, 11:31:38 PM by Cariboo Skidoo »
    1973 Skidoo Elan 250T ( father purchased new, Rotax 377 )
    1969 Skidoo Olympic 12/3 ( Yamaha 340 )
    1968 Skidoo Super Olympique E ( project )
    1971 Skidoo Olympic 335 ( garden tractor rat project )
    1972 Evinrude Norseman 437 ( longtrack project )

    EricR

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #93 on: January 14, 2017, 01:09:32 PM »
    Fab some sort of an actual grab handle on front, those 68-70 front bumpers were more like a chrome strip with two finger slots in front, had to lift with no gloves and they about cut your hands! Sort of like the "hand cutter" grab holes in the '68-70 Skis!

    A '67 bumper is my favorite design.  Would re quire some welding, but that's a walk in the park if you can build pipes like you do.



    I scatter them from the midwest to south of the Mason Dixon

    Cariboo Skidoo

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #94 on: January 14, 2017, 05:55:02 PM »
       Thanks Eric,and nice Doo!
       I totally agree. What were they thinking when they switched to those skis and bumper in '68. Idiots. It's a nice looking bumper though.  I'm actually on the hunt for a '67 bumper for a Ralph Plaisted replica sled I'm slowly putting together. He also changed the '68 skis to '67's.
       Maybe for this sled I'll try making my own version of one of those classic Olympic bush bumpers. I've always liked those. Just make sure there's enough room for my hands. 
    « Last Edit: January 14, 2017, 06:01:27 PM by Cariboo Skidoo »
    1973 Skidoo Elan 250T ( father purchased new, Rotax 377 )
    1969 Skidoo Olympic 12/3 ( Yamaha 340 )
    1968 Skidoo Super Olympique E ( project )
    1971 Skidoo Olympic 335 ( garden tractor rat project )
    1972 Evinrude Norseman 437 ( longtrack project )

    Skier76

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #95 on: January 15, 2017, 12:05:47 AM »
    Great vids! Cool to see and hear it running. Nice work with the sled. Keep us posted!
    1996 Puma 2-up
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    Cariboo Skidoo

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #96 on: February 04, 2017, 11:31:45 PM »
      Thanks Skier.

      I finally got out for a third test ride today. Been pretty busy lately. Went out on the local groomed trail for 6 or 7 kms, adjusted the track and then came back. Everything worked fine, although the hood is getting pretty hot where it's basically touching the muffler. Cruising at half throttle was plenty fast for me.

      We've had a couple of weeks of mild weather that settled the snow. Then a fresh 5 inches a few days ago and - 20 celcius for a couple of days. The conditions are pretty good but not nearly as much snow this year here in town, but still tons up higher. I live at 4000'.
    « Last Edit: February 05, 2017, 08:22:51 AM by Cariboo Skidoo »
    1973 Skidoo Elan 250T ( father purchased new, Rotax 377 )
    1969 Skidoo Olympic 12/3 ( Yamaha 340 )
    1968 Skidoo Super Olympique E ( project )
    1971 Skidoo Olympic 335 ( garden tractor rat project )
    1972 Evinrude Norseman 437 ( longtrack project )

    Cariboo Skidoo

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #97 on: February 04, 2017, 11:47:06 PM »
    How do these look.
    1973 Skidoo Elan 250T ( father purchased new, Rotax 377 )
    1969 Skidoo Olympic 12/3 ( Yamaha 340 )
    1968 Skidoo Super Olympique E ( project )
    1971 Skidoo Olympic 335 ( garden tractor rat project )
    1972 Evinrude Norseman 437 ( longtrack project )

    chris r

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #98 on: February 05, 2017, 12:33:24 PM »
    Your pictures are excellent and to me the plugs look just right.
    I'd rather eat crumbs with bums than eat steaks with snakes.

    LXbuilder

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #99 on: February 05, 2017, 11:31:43 PM »
    Love reading about builds like this. That pipe looks and sounds great.

    Cariboo Skidoo

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #100 on: February 07, 2017, 01:14:14 AM »
       Thanks chris, I'll just check em after each ride. People say not to run these Yammies without the airbox or you'll screw up the air fuel mixture. Should be fine as long as the plugs look good I guess.

       Thanks LXbuilder. I love builds using junk. I've got a small video I'll put up soon, of the sled on the trail so the pipe can be heard.

       I got a good hour long ride in today.  - 15 celcius. Groomed trail, bogs and bushwacking! Had some coffee and a snack up off the side of the trail. She can climb pretty good.
    « Last Edit: February 07, 2017, 02:32:43 AM by Cariboo Skidoo »
    1973 Skidoo Elan 250T ( father purchased new, Rotax 377 )
    1969 Skidoo Olympic 12/3 ( Yamaha 340 )
    1968 Skidoo Super Olympique E ( project )
    1971 Skidoo Olympic 335 ( garden tractor rat project )
    1972 Evinrude Norseman 437 ( longtrack project )

    Cariboo Skidoo

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #101 on: February 07, 2017, 02:24:52 AM »
    And this is looking behind from my snack spot.
    « Last Edit: February 07, 2017, 05:40:33 PM by Cariboo Skidoo »
    1973 Skidoo Elan 250T ( father purchased new, Rotax 377 )
    1969 Skidoo Olympic 12/3 ( Yamaha 340 )
    1968 Skidoo Super Olympique E ( project )
    1971 Skidoo Olympic 335 ( garden tractor rat project )
    1972 Evinrude Norseman 437 ( longtrack project )

    Cariboo Skidoo

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #102 on: February 07, 2017, 02:30:23 AM »
       A couple of pictures while exploring on a nice long narrow bog. Lots of holes and willow to take you down.
    « Last Edit: February 07, 2017, 05:42:16 PM by Cariboo Skidoo »
    1973 Skidoo Elan 250T ( father purchased new, Rotax 377 )
    1969 Skidoo Olympic 12/3 ( Yamaha 340 )
    1968 Skidoo Super Olympique E ( project )
    1971 Skidoo Olympic 335 ( garden tractor rat project )
    1972 Evinrude Norseman 437 ( longtrack project )

    Cariboo Skidoo

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #103 on: February 07, 2017, 07:30:12 AM »
       Here is the short video on the trail.

    https://www.youtube.com/watch?v=pm2D1K-O3ck
    « Last Edit: February 07, 2017, 07:32:33 AM by Cariboo Skidoo »
    1973 Skidoo Elan 250T ( father purchased new, Rotax 377 )
    1969 Skidoo Olympic 12/3 ( Yamaha 340 )
    1968 Skidoo Super Olympique E ( project )
    1971 Skidoo Olympic 335 ( garden tractor rat project )
    1972 Evinrude Norseman 437 ( longtrack project )

    EricR

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    Re: 1969 Ski Doo Olympic 12/3 (1982 Yamaha 340 engine swap)
    « Reply #104 on: February 08, 2017, 12:38:15 AM »
    Good idea packing snowshoes when you are solo out there.  I also like the color co ordination of the snowshoes to the machine.  8)
    I scatter them from the midwest to south of the Mason Dixon