SOHC.co.uk Forums > CB500/550
550 F2 started!
Laverdaroo:
Thanks ella's looking now. Would eiher of you know what iameter piston that is in te master (mm)?
Sesman:
I think it’s 17.5mm, but couldn’t swear to it. I’d rather not strip it to find out. ;D.
I do know a later 80s wing m/c with 15mm is popular, but I can’t vouch for it.
McCabe-Thiele (Ted):
Looking at those strange ripples on the top of the frame reminds me of pressing marks I have seen on some front wings back in the 1960's to mid 1970's on cars - from my memory it was caused by a lack of lubricant during the manufacturing / forming process. It was usually near the end tip of a wing where the lubricant had failed to reach or had broken down.
I have no idea how they make a bike frame but I suspect it could be from when the frame was made.
Laverdaroo:
After everyone looking at theirs an me bobbing about to see collections of bikes etc it turns out it si manufacturing from the stamping of teh individual processes involved. It wasmy forst thought too Ted.
Looking at whats out there and not wanting to spend teh earth on levers master cylinders and the like and the fact I'm going to nee a pair of matching levers and poerches Im looking all ove the net. The chinese do an awful lot but at £30 for a pair I'll skip that I think.
Its probably going to be Rizoma or Brembo but still looking...............
Laverdaroo:
Soooo, hit a snag!
Went to fit the Steel Dragon air boxes to the fresh built carbs just to have a look……as you do, and it appears they don’t fit! Eeek!
Looking insite there’s a lip that’s 1mm higher than the opening meaning the carbs only go on 5mm rendering the grub screw holes useless and with no seal.
Bit of a sod as I’ll have to get em apart and have them machines somewhere, ( my local guy is all Covid’d up to the max). Bit of pain as I presumed they’d be a bolt on win, sadly not!
I’ve dropped them a mail but I’m not kicking and screaming, these things usually happen to me so it’s par for the course. They’re in the states and the economies of scale don’t compute so I’ll sort it but ‘bloody ‘el)
Anyone got their lathe up and running and fancy an easy guvvy job for beer tokens?
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