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Teds new project a CB500 K1 mostly version 0.5 circa 1972.
Bryanj:
Cant remember Ted think it was a new pattern one
McCabe-Thiele (Ted):
I have measured the clutch outer cable from ferrule tip to ferrule tip (excluding the adjusters) it is 4ft 1/16" so that's a nominal 4 ft - with my cable routed in what looks like the best route (#).
That looks like an excess of six to seven and a half inches of outer cable,
# My route is currentky from the clutch lever down through slot in the instrument bracket coming out on the right side of the frame routing above the tank mount then passing through the far end of the coil gap in the frame down between carbs 1 & 2 and into the left side cover.
Sesman:
Try this Ted. http://forums.sohc4.net/index.php?topic=139600.0
Appreciate it’s about throttle cables, but includes some clues
McCabe-Thiele (Ted):
--- Quote from: Sesman on October 26, 2023, 11:50:12 AM ---Try this Ted. http://forums.sohc4.net/index.php?topic=139600.0
Appreciate it’s about throttle cables, but includes some clues
--- End quote ---
Interesting read Phillip, some books & owners seem to show/say throttle cable runs down the left side of the frame others the right side.
I am now happy with my throttle cables running down the right side - they no longer stick - it seems the cable curve/run makes for a smooth operation - even if it's not original. I can't test effect of steering as I have no wheels in place atm.
All the things I have read appear to agree that the clutch cable starts on the right side then crosses over at the coils to the left - this looks good to me.
If I route my clutch cable through the instrument bracket I have loads of spare cable looping.
Even if I route it as it was not throught the instruments but between the right side of the forks there is an excess of cable loop.
The clincher will be when I know what the correct clutch cable outer length is excluding the adjuster for a UK 500.
If my cable is correct at 4ft then the route certainly can't be through the instrument bracket - I suspect that is for the higher US bars.
Oddjob:
A genuine UK clutch cable is 107cm from ferrule to ferrule, or 42" if you prefer.
I don't think it routes through the coil opening Ted, I suspect you are correct in saying through the clock bracket down the right side of the frame but I think it crosses to the left just where the throttle cables join the carbs, just before there where the frame starts to flatten out. It then goes through the carbs between 1 & 2 and into the sprocket cover.
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