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Project CBR250 FOUR MC-14

Discussion in 'Your 250cc Projects' started by Murdo, Mar 13, 2018.

  1. Andych

    Andych Well-Known Member Premium Member

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    Or make a B$tchin button as the stuff @Murdo does is pretty B$tchin.


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  2. Frankster

    Frankster See the World before you leave it Staff Member Premium Member Ride and Events Crew

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    Gnarly.jpg
     
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  3. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    Maico 250, Royal Enfield 250, CF 250 V5 and 650TK, XL250, CBR250, ZZR250 plus a few others.
    Rebuilt the seat with some new high density foam and took to get recovered in the original blue colour.
     
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  4. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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  5. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    New radiator arrived yesterday and I cut the mounts off the old rad and glued/riveted to the new one. Some black paint and fitted the fan and shroud, ready to fit.
    xxx 004.jpg xxx 006.jpg
     
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  6. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    The forks arrived from the re chromers while I was away. Keen to get in and do some bike stuff so forks now in, handle bars and levers/switches fitted, wheel in and brakes bled.
    P I trip Oct 2018 063.jpg
     
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  7. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    Took the barrels to be rebored. I bought .50mm oversize pistons but am worried the rust may be too deep and will need to go bigger. The machinist is going to do the rusty No1 first and see if it cleans up alright.
    ZXR fairing re paint 009.jpg ZXR fairing re paint 011.jpg
     
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  8. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    My Bike:
    Maico 250, Royal Enfield 250, CF 250 V5 and 650TK, XL250, CBR250, ZZR250 plus a few others.
    The fairings needed some attention with welding of cracks, attaching of button mounts and had to make a corner for one side panel.
    MC-14 painting 006.jpg MC-14 painting 008.jpg
    Biggest problem was one of the main fairing mounts was completely broken with only the brass threaded bushing left. I cut up pieces of ABS from other Honda fairings and soaked in Acetone to make a thick liquid goo. Using a piece of 25mm plastic hose greased on the inside I siliconed that to the fairing, fitted the brass bush and poured in the goo. Will take a few days to set but could not think of a better way to do it.
    MC-14 painting 004.jpg MC-14 painting 014.jpg
    When set I can trim it to look like the other side and paint.
    Most of the paint wasn't too bad but with lots of small scratches and chips. I sanded them down and borrowed an air brush from my daughter and was able to get most of them hidden. A light sand with 1200 grit and a couple of coats of 2k clear and looks pretty 'snazzy'.
    MC-14 painting 001.jpg MC-14 painting 016.jpg
     
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  9. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    With the new Chineseum fuel tap fitted I found the shaft to be about 6mm too long. The original fuel tap handle had split and needed some repair too.
    Street show  Nov 2018 003.jpg
    I plastic welded it back together then drilled with 7.5mm drill 6mm deeper into the recess.
    Street show  Nov 2018 005.jpg
    Then using a 3mm end milling tool in drill press and turning the X and Y axis of the vice I milled out the corners.
    Street show  Nov 2018 008.jpg
    Cleanup with file and sharp knife and fits tops.
     
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  10. minimac

    minimac Member Premium Member Contributing Member

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    I'd probably still be pulling it apart!
     
  11. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    Where to put the freshly painted panels so they wont get scratched?
    Hang them on the frame.
    Street show  Nov 2018 001.jpg
     
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  12. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    The mounting piece that I made has dried out and I trimmed up with a dremel wheel. Has a bit of porosity on the end but is holding firm and screwed up tight to frame ok after painting.
    glen innes 008.jpg
     
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    Last edited: Nov 28, 2018

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