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Project The Yamaha R4 (Glacially Slow Project)

Discussion in 'Other Projects - Other Bikes (non 250's)' started by maelstrom, Dec 20, 2014.

  1. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Cerakote I like.
    So I finally got to make a start on the engine painting. Colour for the head, cylinder block and cases will be aluminium and the covers will be, you guessed it, titanium. Decided to do a test on the sprocket cover. I am not much of a spray painter but I spent long hours on preparation. Totally happy with the result. I am going to do the crankcase bolts this colour too so I painted one to see how it looks. Aluminium will arrive this week so I will paint the cylinder block, flex-hone and store. Then start work on the head and cases.
    [​IMG]
     
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    Last edited: Feb 22, 2016
  2. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Global Warming Needed
    The glacier is melting even slower than usual. On Oct 13th 2015 I posted that I would be switching to Yamaha forks and using the gold-spot calipers from the R1, well they just arrived. I know that this project is slow but things like that don't help. We are building a new house, or should I say trying to build a new house, so that is also wasting vast amounts of time.

    Calipers weigh 1 gram lighter than the 400 items but the pads on these are about 60% worn, so I am sure they will be a smidgen heavier. These apparently use aluminium pistons as opposed to the steel versions on the blue-spot calipers from the earlier models. I have the lower triple clamp now so I will be able to make progress on the front suspension.
    [​IMG]
     
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    Last edited: Mar 19, 2016
  3. ruckusman

    ruckusman Well-Known Member Premium Member Dirty Wheel Club

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    building a house eh, well Burt Monroe would be living in the shed with the bike, and annoying the neighbours with engine tests at dawn...

    I question your commitment Blair :p

    Keep working on it, you know we wanna see the end result
     
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  4. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Haha Absolutely!
    Well the 'house building' has hit lot of snags. I refuse to build it the Thai way, being as stubborn as a mule, so that is causing a lot of issues; add to that my wife has agreed that she would rather I buy a VMC than spend the money on the new house. Bless her cotton socks :)
    I will blast, paint the head over the next two weeks so can start on the cases and the re-assembly of the engine can proceed.
    cheers
    Blair
     
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  5. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    The Poor Neglected R4:
    Well, finally some movement. Have my titanium stem to fit the R1 clamp to the 400 steering head but I have binned the Yamaha twin nut system for a clamped nut version. Here is the bottom clamp comparison. I removed two screws from the R1 clamp because I will use titanium and they are about half the weight.

    This is the 3TJ1 part
    [​IMG]

    and my new jobby
    [​IMG]

    Nearly a kg lighter in one hit, nice. I have tested the forks for fit and the steering stops work perfectly so I can now get to work on the fairing mount and a bunch of front end stuff. I still have to draw up the new top triple clamp and get it made.
     
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    Last edited: Sep 10, 2016
  6. ruckusman

    ruckusman Well-Known Member Premium Member Dirty Wheel Club

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    that's a beautiful thing
     
  7. MashtX

    MashtX Well-Known Member

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    Oh my :o that's hot

    Sent from my HTC_0PJA10 using Tapatalk
     
  8. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    Why do I feel so immensely envious right now.
     
  9. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    The top nut, which has its external dimensions modelled from the Ducati part, looks like this when fitted.
    [​IMG]

    ... and when the clamp is attached will look like this. This Ducati part does not match my forks and offset unfortunately.
    [​IMG]
     
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  10. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    I have no choice, to compete with your genius & bike I will save 20k and get an MV Agusta f3 675. it's only fair.
     
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  11. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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    Nice work Mr Green ..... makes my projects look like they are at a standstill .... oh wait :help:
     
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  12. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Mr Grey if your project is slower than mine then you really do have problems. :)
     
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  13. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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    I just have too many ... plus a half refurbished Land Cruiser and a half renovated camper trailer.
     
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  14. ruckusman

    ruckusman Well-Known Member Premium Member Dirty Wheel Club

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    Cut back end off of Landcruiser, weld on camper trailer, two jobs done - YAAY - DIY Winnebago, DOUBLE SCORE
     
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  15. Revolver

    Revolver Big Member

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  16. ruckusman

    ruckusman Well-Known Member Premium Member Dirty Wheel Club

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    it's never going to fit into my letterbox, they'll make me pick it up at the post office won't they...!?
     
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  17. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Prep cylinder head, blast and paint.
    [​IMG]
    tada
    [​IMG]
    Sounds easy when you say it quickly like that. It wasn't.
     
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  18. ruckusman

    ruckusman Well-Known Member Premium Member Dirty Wheel Club

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    Don't let the climate change threat and melting glaciers spur you to action, your non-melting glacier may be the saviour of us all :prankster::prankster::prankster:

    In all seriousness, that's a great colour choice and I'm guessing the Cerakote will be much easier to keep clean than bare aluminium and durable to boot
     
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  19. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Hee Hee :p

    They have a huge range of colours and I think lots of them would look good. I will paint the cam cover and a few other bits tomorrow and take a new pic to see how it looks. I am going to use acrylic for the case halves to seal them for blasting too. That way I can fit the damn things inside my little blast box.
     
  20. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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    Nice work!
    Just spent a bit of time browsing the Cerakote site, price's are pretty good
    I'm more of a gloss finish person due to it being easier to clean, i might try out their paint's one day
    I reckon that silver you used plus a coat of clear would really bring out a reflective silver finish
     

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