Featured Mr O's 1966 T120

Discussion in 'Vintage Classics' started by MrOrange, Apr 26, 2018.

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  1. MrOrange

    MrOrange Guest

    Rebuild thread. Will update as we progress. I know how you like photos so let's get started.
    DSC_1063.JPG

    Tank and seat off. Fuel pipes are as hard and brittle as cast iron.

    DSC_1071.JPG
    Side panel off. 7/16 coming in very useful. Recognised size of bolts straight off, all coming back to me.

    DSC_1063.JPG
     
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  2. MrOrange

    MrOrange Guest

    Ade, honestly mate, your taste in music is shocking !!! :confused:

    :blush:
     
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  3. stevethegoolie

    stevethegoolie Elite Member

    Oct 16, 2014
    2,453
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    Most of that will soon polish out!!!!:grinning::grinning: Probably.:(
     
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  4. MrOrange

    MrOrange Guest

    I wish! :p

    It's all part of the fun, be boring if it was easy. :cool:

    Anybody know the firing / crank angle of these engine's?
     
  5. Tigcraft

    Tigcraft Unheard of Member

    Mar 29, 2014
    2,605
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  6. stevethegoolie

    stevethegoolie Elite Member

    Oct 16, 2014
    2,453
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    East Riding of Yorkshire
    Crank is a 360 degree jobbie. Pistons rise and fall together.
     
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  7. MrOrange

    MrOrange Guest

    I presume alternate firing? As one sucks other is on bang and then blow / squash as a pair. Doubt they had big bang engine back then:p
     
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  8. Tigcraft

    Tigcraft Unheard of Member

    Mar 29, 2014
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    No. Both bang at same time. Pararel means that as apposed to in line Twin which is one up one down.
     
  9. capt

    capt Elite Member

    May 8, 2016
    3,052
    750
    western Australia
    Coat it in molasses or stick the rusty chromed bits in a bath of molasses, it will eat the corrosion off/away, leaving you with bright shiny bits that require minimal Polish work.
     
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  10. Callumity

    Callumity Elite Member

    Feb 25, 2017
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    Both right. It IS a parallel twin fitted tranversely (side to side) rather than longitudinally (in-line). And they do fire alternately unless twingled with a camshaft mod to go Big Bang. If you have ever ridden one two up under moderate acceleration you can feel the power strokes as it labours a little.......or maybe it is just the vibration!
     
  11. MrOrange

    MrOrange Guest

    DSC_1094.JPG DSC_1093.JPG
    Coming up nicely.
     
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  12. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
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    Are there a few kids missing a teacher?
     
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  13. stollydriver

    stollydriver Elite Member

    Apr 25, 2015
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    He' left an xbox in class and lots of sweets o_O
     
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  14. Rocker

    Rocker Elite Member

    May 1, 2016
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    She's coming on a treat MrO you'll have her going up the road in no time :) I think you still failed to mention how much though:confused:
     
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  15. stollydriver

    stollydriver Elite Member

    Apr 25, 2015
    2,043
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    3 haggis and a crate of irnbru :mask:
     
  16. Tigcraft

    Tigcraft Unheard of Member

    Mar 29, 2014
    2,605
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    Look at this explanation
    https://www.bikesmedia.in/reviews/d...arallel-twin-cylinder-motorcycle-engines.html
     
  17. Callumity

    Callumity Elite Member

    Feb 25, 2017
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    A twingle.....they do exist. In 4 cylinder machines we call them Big Bang...
     
  18. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
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    Are you trying to tell me there are 4 cylinder twins? Ooooh me ‘ead ‘urts
     
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  19. Callumity

    Callumity Elite Member

    Feb 25, 2017
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    Go back to sleep. You are having a nightmare.
     
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  20. Yorkshireman

    Yorkshireman Crème de la Crème

    Dec 12, 2015
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    Suzuki and Kawasaki made three cylinder twins in the 70’s (when it rained) : unamused:
     
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  21. Tiglet

    Tiglet Vintage Member

    Mar 28, 2016
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    Another mod that’s possibly been done to Bonny is the fitting of Amal Concentric carbs.

    I think they were first fitted in ‘67/68 ???? but I may be wrong :eek: twas a long time ago is my excuse.

    Standard fitment would have been Amal Monoblocs.
     
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