The Montesa Cota 314R Thread

Discussion in 'Trials' started by Brewtus, Oct 8, 2013.

  1. Brewtus

    Brewtus Buffoonery, Inc.

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    I could not find a thread dedicated to the Montesa 314R, so I started one. I acquired a 314 years ago and messed around with it some, but parked it on the back porch and all but forgot about it until Lineaway decided to revive a Fantic he had thrown away 9 years ago then decided to assemble it and ride it this weekend.

    Lineaway's Fantic...uh...build (?) thread here -

    http://www.advrider.com/forums/showthread.php?t=923801



    I last messed with the 314 3 years ago now, here -

    http://advrider.com/forums/showpost.php?p=14686496&postcount=1



    Damn you anyway, Bob. Got the old 314 off of the back porch and decided to clean it up -

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    Maybe it has sat a while -

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    I'm pretty sure this is an Approved Spark Arrestor - :lol3

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    Cleaned up, and ready to....go?? Miss Bitters' 315R and my 4RT look on -

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    The bike had sustained a lot of damage in it's previous life. Note the broken rear sub-frame -

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    And the destroyed speedo. This thing amassed 1700 miles?? Hardly. Well wait....It is currently going 20 MPH.... :lol3

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    I remember the original muffler being in not that bad a shape. I think....

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    Maybe the aftermarket spark arrestor is not that bad??

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    Yeesh! Maybe another muffler should be considered. Cut, weld, cut, weld.....

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    Or maybe another alternative? NMTrailBoss' 315R is currently residing in my garage, and has a really neat Turbine Core II muffler attached to it (a trademark of NMTA 315R's when Lewisport USA used to be located here ) -

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    Better not. After all, NMTB is a friend. :D

    Anyhoo, moved on to replacing the handlebars from the original bent Domino's to a set of less-bent, taller Tomaselli's -

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    Maybe a new set of funky new grips I found in my box-O'-vintage trials bits? -

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    Maybe not..... :huh



    I went on to pour a bit of pre-mix oil down the cylinder. The last time this ran, it had a bit of a top-end knock and I was not too sure of the fuel that it was running. Drained out the old fuel and force-lubed the piston. I know this will not help the rod/crank, but it makes me feel better about starting it back up with a fresh charge of AvGas/Motul premix -

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    Moving on, what's this in the swingarm bolt? Dirt? Grit? No....

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    Bug bits!!! :eek1

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    At the end of the day, it was looking pretty good. A couple of beauty shots with NMTB's 1st Gen. 315 -

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    I still like this, cast into the frame rail -

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    And these stickers on the swingarm. No idea what it is. HMPlant? Honda Montesa? Anyone?? :dunno

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    More to come. Maybe. :lol3

    Well, there you have it. Got a 314? Post it up here!!! :deal
    #1
  2. lineaway

    lineaway Long timer

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    HM = Honda Motor. Now give us a photo shoot of changing the oil. Ha! Ha!
    #2
  3. NMTrailboss

    NMTrailboss Team Dead End

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    You leave my 315 alone! :thwak


    I'm hanging on to it until it is vintage! :lol3
    #3
  4. NMTrailboss

    NMTrailboss Team Dead End

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    #4
  5. Old Geezer

    Old Geezer Been here awhile

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    It only took 25 years to let in the Air Cooled Mono's, you may be as old as me before the water pumpers get in. :rofl
    #5
  6. lineaway

    lineaway Long timer

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    Then you will be as old as me! And I`ll be 68, and riding vintage. ( I could only hope)
    #6
  7. BEEF706

    BEEF706 King of the dumb dab

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    Nice work Brewtus, I particularly enjoyed the bug bits pics :D
    #7
  8. Brewtus

    Brewtus Buffoonery, Inc.

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    Aw, C'mon! How's about a Water Buffalo Class for these and other early model agua-pumpers for MWVTA?? :deal Heck, this one is already 19 years old! :lol3
    #8
  9. NMTrailboss

    NMTrailboss Team Dead End

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    That's my point!
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  10. Brewtus

    Brewtus Buffoonery, Inc.

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    Okay FINE, I'll leave your 315R alone.


    Maybe..... :lol3
    #10
  11. lineaway

    lineaway Long timer

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    So Chris, when are we gonna take it out of the tree?!?
    #11
  12. Brewtus

    Brewtus Buffoonery, Inc.

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    Uh, not sure what you mean. You are the only one I know of that can take an old derelict that had a tree growing through the middle of it, assemble it, and compete on it in a week. This one had no tree in it, just several years of funk growth...... :lol3


    Ya know, I just KNEW I started a thread on this pile before....

    http://www.advrider.com/forums/showthread.php?t=596280
    #12
  13. LowPSI

    LowPSI Been here awhile

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    The 314was agreat bike. Just slightly overbuilt. Fun to ride.

    http://www.hmmoto.it/. Cool website

    HM Moto is the Italian importer for Honda XR/CRs and Montesa.
    #13
  14. Brewtus

    Brewtus Buffoonery, Inc.

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    One mystery solved, thanks. :thumb

    The 314 is getting a muffler temporarily grafted onto it today, fresh fuel in the tank, and see if it will start and run. If it does not make TOO much top-end noise, I'll move forward with subframe repairs and a silencer. If not....eh...anyone know where to get a piston kit for a 314? :eek1
    #14
  15. Brewtus

    Brewtus Buffoonery, Inc.

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    As promised, some updates. Began with tightening up the steering stem, and adding some handgrips and some cool bar-end covers I discovered in my Big Box-O'-Trials bits -

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    I garbaged-on the OE, beat-to-death silencer since the 315's Turbine Core did not even come close to working. Yeah, this is temporary, yet very Rednecked on! :lol3 -

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    It beats the hell out of the silencer assembly it had -

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    Some fresh fuel, and we have.....

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    The bike does have some piston slap, but not as bad as I remember. I am gonna run it for now until I get nervous. Until then.....

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    :clap



    Miss Bitters showed up later and wanted to try to balance the heavy old nail just for fun. She was saying that it was a bit difficult to dead-stick balance....

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    She wound up putting the front wheel in the rocks to get it to work. Afterward, I discovered 44psi in the front tire. No wonder it was so hard to balance for her. She had to try for a whole 4 minutes to do so.....:huh



    Bottom line it runs, shifts, and stops. The carb is dirty (won't idle without choke), but I'll take care of that when the new reeds arrive.... :evil It's now a keeper, if not a competitor. :clap :freaky :thumb



    Okay that's mine. Where's yours?? :ear
    #15
  16. NMTrailboss

    NMTrailboss Team Dead End

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    You kids are always ATGATT!! :deal

    :lol3
    #16
  17. Brewtus

    Brewtus Buffoonery, Inc.

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    Yeah, you got us there....... :shog
    #17
  18. motobene

    motobene Motoing for 49 years Supporter

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    +1. I keep looking at that massive backbone triangle :eek1 and thinking you could toss it off the edge of the south rim of the Grand Canyon and while all the outside stuff might get destroyed, the core of the frame would just glint.
    #18
  19. Brewtus

    Brewtus Buffoonery, Inc.

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    Yeah, I always joked that the frame on this thing was more akin to an RC30 than a Trials bike.... :lol3


    Anyhoo, fought the no-idle problem for about 2 hours before I got fed up and tried a last-minute redneck fix. Doused the Slow Jet orifice in the carb with Sea Foam and spray carb cleaner then Very Gently ran a jet cleaner rod through it -

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    It worked!! :clap Bike now starts and idles with no choke. Since the shock got disconnected to allow access to the carb top, I went ahead and lubed all the pivots and bolts -

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    I found a treasure in my Big Box O' Trials Bits - a replacement choke lever!!! :eek1

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    Beats the heck out of the hillbillied....uh...lever it had. Although it worked, it was just a bit sharp for everyday use.....

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    I rode it off and on for most of the afternoon. Fan kicked on and off, ran it though the gears several times, and did mild stunts on it. Now for a sub-frame repair and a silencer mod. Mayhaps I'll call Mike at the Tryals Shop to see if he happens to have a sub-frame for a 314. Heck, I have not been laughed at over this thing in some time, so why not right? :D If he doesn't have one (I'm really not holding my breath), it's fab time.

    More to come. Sometime...... :evil
    #19
  20. fortizgur

    fortizgur Adventurer

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    Very nice write up!!! I agree with the other guy,, much better thread than other dude (me).
    #20