1976 Montesa Cota 348

Discussion in 'Trials' started by lineaway, Mar 20, 2016.

  1. lineaway

    lineaway Long timer

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    Well nothing like waiting till the last minute. Our first vintage event is next weekend. I`ve had this bike since September. I ordered and intake boot and the air box boot over the winter. I cleaned the carb over the Christmas holidays and threw it in a box along with the air box. It has been sitting there ever since. Last Friday I fiber glassed the bottom of the tank as it had about a half dozen pin holes in it. Last Sunday I coated the inside of the tank with Caswell tank epoxy. Let it cure inside the house all week.
    Well today was the day. Installed the carb and air box. Put the cables back together. Put the tank on and no spark. Shit. Thought about it and cut the wiring harness after the coil. Bright blue spark! Filled the tank with a half gallon of fuel, took a deep breath and she started on the second kick! Not bad considering it could of been a decade or so since it ran.
    [​IMG]
    #1
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  2. lineaway

    lineaway Long timer

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    After riding it around the yard with the front rim band getting tighter and tighter around the front axle, I was confident everything was working. I installed a well used Michelin front tire. (the X11 on the back will do for next weekend) The Koni`s that came on the bike were pretty shot. (Yellow shocks on the ground) So I threw some marzocchi`s I had lying around. Damn, way too stiff. Off with the purple springs and on with the yellow one`s. (with a little spacer) Being cheap, this will work just fine. At least if I finish next weekend. Roswell here I come! :wings:ricky:freaky
    #2
  3. Brewtus

    Brewtus Buffoonery, Inc.

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    And I thought I put things off until the last minute. We were beginning to wonder if that heap was going to make it. I should have known better than to doubt Line's savvy with old junk. Cool, man, good job!! :thumb
    #3
  4. BigRedRockEater

    BigRedRockEater What is Big Red and Eats Rocks

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    I almost had a heart attack trying to ride one that was running stock rubber, hurry up and put a good tire on the front of that thing ;)

    and ? is it just me or are those rear shocks on upside down ?
    #4
  5. lineaway

    lineaway Long timer

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    I never run good tires, that`s cheating. It`s vintage, run what you find laying around. Hell I found a brand new (25 year old) michelin tube, it barely unrolled from out of the box. The shocks might not stay on (I just wanted to try 13.5 inchers) since I plan on riding the NATC nationals. It`s a beer class thing.:beer
    Someone removed the spedo gear, so there was a gap in the front axle. (Wobbly) I dug through my spacers and found a piece of a handlebar that I had shortened. Wouldn`t you know it, 14mm inside diameter and just long enough if I remove one of the existing spacers. Perfect!
    #5
  6. lineaway

    lineaway Long timer

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    Well the first trials on the bike was a flop. The original petcock did not allow enough flow to the carb. I would run the bowl dry between sections. I ordered a petcock out of the UK for 18 bucks and a few other items including a 9 tooth counter shaft sprocket. The bike was way too fast and the sections set way too tight for a vintage bike. Luckily only two riders in my class. So two seconds on this beast of a bike.
    [​IMG]
    #6
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  7. lineaway

    lineaway Long timer

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    So after a few days of not getting the sprocket off, it was time for the big boy tools.
    [​IMG]
    #7
  8. lineaway

    lineaway Long timer

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    Now that I have it geared, I need to ride about an hour in the heat to see if I have any other issues. I do have a new set of main seals, just in case. I`ve got to install my old jet ski tether and maybe do the front forks today while I`m at it. I am running out of time for the national next weekend! :muutt
    #8
  9. BigRedRockEater

    BigRedRockEater What is Big Red and Eats Rocks

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    On my 360VA it had 2 gas taps, if they weren't both open to reserve you could starve it for fuel :| if they were both open on reserve you were good for 20 minutes max.

    ;) I have an old chain out behind the garage that might be better then that one, you'd be welcome to it, but the shipping charges might be kinda brutal.
    #9
  10. lineaway

    lineaway Long timer

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    I`m in it for under a hundred bucks. I`ve had much fun riding our vintage events on all this old crap. And as we speak an old rider is bringing me a 247 for free. He just called me 30 minutes ago out of the blue. Might even have a better chain!
    I`ll have to be kind to all those poor bastards riding those 4 RT`s next weekend. I never rode a National on a Montesa before!
    #10
  11. lineaway

    lineaway Long timer

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    No chain, but a perfectly good set of Dunlop 803`s for the 348! :happay
    [​IMG]
    #11
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  12. lineaway

    lineaway Long timer

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    PS. Those are not clouds in the background. The Dog Head fire is in my back yard. Wednesday it dropped a fair amount of ash. As long as the wind stays the way it is everyone is good.
    #12
  13. dean-o

    dean-o Dabs often

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    Holding my Old Chub in my hand & hoping the flames stay away from our inmates out that way.
    Dean

    Attached Files:

    #13
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  14. Nodabs

    Nodabs Been here awhile

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    I don't know if I've ever seen a Montessa finish a vintage trial. I've seen plenty along the loop though.
    Maybe Graham Foster way back in the early 90's.
    #14
  15. dean-o

    dean-o Dabs often

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    How did Larry Holbert do with his 349 this year?
    Dean
    #15
  16. lineaway

    lineaway Long timer

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    Larry was second in the east series. Jim from Michigan smoked everyone, but I do not remember him from the past.
    #16
  17. Brewtus

    Brewtus Buffoonery, Inc.

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    Whoa, PM sent for that Montesa Line!!!
    #17
  18. lineaway

    lineaway Long timer

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    Well come the third loop Saturday my bike was too hot. I should have replaced the main seals. On any long climb I would slowly lose power till it died. In fact on the second loop between section 4 and 5 we had a long steep climb. My mid pipe and silencer both caught fire inside the pipe. I had to remove my fiberglass tank as it started to melt. Nothing like excitement on the loop.
    #18
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  19. lineaway

    lineaway Long timer

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    #19
  20. lineaway

    lineaway Long timer

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    Well that was a clip from Sunday at the Co. National. I ended up third that day with 28 cleans out of 36 sections. I even made the mag `On the Pegs`.
    Pretty good considering the Beast still is not running too good. Blame it on the mechanic.
    [​IMG]
    #20
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