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SOHC

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Posts posted by SOHC

  1. 13 minutes ago, GregT said:

    #308 in the top pic is an oddball. Jawa top end on a BSA ?  And is that Inia holding up the fence ?

    308 is Bruce Frasier and yes thats a Jawa head but thats an air compressor barrel under it, when I was going to beat him so he went home. Inia is somewhere elce

    • Haha 1
  2. On 22/03/2024 at 07:50, Vintage Grumble said:

    Is there some sort of lyfe hack for getting paint off motorbike plastics? Or just good old fashioned sanding?

    ALSO, has anyone had good results sanding/polishing scratches out of clear plastic windscreens or the like?

    Petrol works if its just spray cans.

  3. 3 minutes ago, BlownCorona said:

    this is super cool. my watchmaking skill level doesnt call for a lathe but that doesnt stop me wanting one. 

    that little stakeing tool is awesome too, i take it hes into watches/pocket watchs/clocks?

    Yes he plays around with old watches and wanted one but they were super expensive, I got this for $50

    • Like 2
    • Thanks 1
  4. All I did to mine was bore it 1mm as it was very scored and raidous the bottom of the transfer ports on the cylinder sleeve bottom, gut the inside of the expansion chamber and rejet the carb, now it will get the front wheel up in 2nd and 3rd gear with a twist of the trottel, people fit a kawasaki KX 80 ignition system witch makes them rev more,

    I wouldnt touch the cylinder head as I am getting detonation on the over run with stock squish, like Greg T says it will get difficult fast.

     

    I am trying to work out if the TS125 cylinder is any better than the TF, the part number is almost the same, TF has a low 1st gear, and slightly different crank caces but the gearbox will interchange

    20240214_101220.jpg

  5. 10 hours ago, GregT said:

    The lack of a front brake is interesting. Suggests that the bike was multi use. Did he ride it on Waiheke Island prewar ?

    Yes it was used for all sorts of things, he is doing a flying mile in that photo, the dame engine from that bike is not in the Manx I ride witch won a race on Waiheke and he also got a 3rd as he had to push it over the line as it ran out of fuel

    • Like 2
    • Haha 1
  6. My TF125 is knocking under engine braking and at about 2000 rpm when not under load, I can make it richer and it will be less but then it bogs. Needle is as high as it can go and I have gone up 2 sizes in the main jet, I went up a size in the pilot jet but this has caused it to hesitate

    I wonder if I should use 95 octane or retard the timing? I have never come across this problem before, its making so much more power than a stock tf

  7. 4 hours ago, GregT said:

    The register had some strange attitudes. Still has in some areas. I've told Ken what I thought of some of their decisions.

    Ken made the rules so his bikes with desmo and electronic ignition and belt drive pimary can run in the factory class

    • Haha 1
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