SOHC.co.uk Forums > CB500/550
disk drilling
totty:
There's a guy on another forum (Scimitar owners club) that's bought a milling machine and is offering to do cheap 1 off work to recoup the cost. If the consensus is that it's a worthwhile mod and greater than manual accuracy is required then I can ask him for a price. I think new disks were on offer at cmsnl as well.
He's done a very tidy job of fitting a 3L 24v Omega engine to his Scimitar.
Yoshi823:
Making a template for disc drilling isn't rocket science. I made my own template & drilled my own discs.
http://www.sohc.co.uk/index.php?topic=2451.0
I'm not sure what the differance in weight is, but reading the scientific reason that John Robinson from Motorcycle Mechanics came up with as justification for doing the job made it all worthwhile.
Bryanj:
Reason given when i was in the trade in the 70's was it was somewhere for the rainwater to go
captaindonutbikes:
quality answer Brian.
so everyone seems split on the disk drilling. my brother in law maybe able to help out but i would interested in hearing the price of schmitar owners club guy ?
Yoshi823:
John Robinson said that the holes had something more to do with the barrier gases given off by the friction of the pads...
The book by John is in a box somewhere up in the loft (the missus had a tidy up) so i'll find it & post up a few quotes.
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