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Teds new project a CB500 K1 mostly version 0.5 circa 1972.
SPR:
--- Quote from: McCabe-Thiele (Ted) on December 21, 2022, 01:47:14 AM ---
Thinking about improvements / mods from the original has made me re-think the exhuast situation. I was minded to fit the original four pipe system to keep the period look and gloss over the cost. That got me thinking about the owners who went from twin pipe to 4 into 1 systems as they performed & sounded better.
Just thought I would put that out there for added public humiliation to add to the Nut Brown saga - I still have regrets about settling for boring black.
--- End quote ---
I think after all the time and work you are putting in .... the original style system would be icing on the cake :)
Oddjob:
I’ve had a few 4 into 1 systems Ted, a Piper system that howled like a Banshee having a prostate exam, had to remove it to change the oil filter though and it rusted for fun. A Yoshimura that was much quieter until you wound it up but it didn’t stop you working on the engine etc.
For best performance though the OE system takes some beating, sure the Yoshi performed better but only at the top end of the rev range, it lagged at mid range though, the Piper sounded better but it also had a hole in mid range, the 4 into 4 system looks awesome, it performs excellently and it just suits the look of the bike better.
For me it’s the exhausts that make the 500 so appealing, there’s just something about them that floats my boat in a BIG way.
Matt_Harrington:
--- Quote from: McCabe-Thiele (Ted) on December 19, 2022, 08:10:24 PM ---Purists look away now - my DS Chrome finished plastic headlamp bowl & aftermaket rim kit arrived today so I was able to fit a neat Land Rover LED headlamp unit without any alterations.
Thanks for the tip Allankelly & the link. https://www.ebay.co.uk/itm/303960372602
--- End quote ---
Ted, nice h/lamp option. I want to build a bobber from many old Triumph 3T bits I have and this would fit the bill perfectly. Will look good on your 500.
Sesman:
Guys, spacing the calliper….I don’t recall having to do that? Do you mean spacing the caliper carrier pivot mounting on the fork bottom mounting? I found using 2no 6mm washers sorted that. I’ll turn permanent spacers at some time in the future. Apologies if I’ve read that wrongly it’s just that I’ve got eye floaters again.
A work mate back in 1978/79 would give me a lift on his black 500 from York to Leeds. His was equipped with a Marvin 4:1. To my young ears it sounded mint, it really howled at the top end, though he did complain of flat spots. He eventually changed back to standard. And I agree with Ken, the original 4 pipe appearance is best for the standard bike.
I’d even thought about putting 4 pipes on the F2, but the cost was prohibitive for an uncertain and unconventional appearance. I’ve gone for Dekelvic which is ok, but no substitute for standard.
Speaking of standard pipes, my CB175 pipes rotted out in 1977. I tried all kinds of arrangements, but in order to make it run properly I eventually had to dig deep for standard replacements.
McCabe-Thiele (Ted):
I guess the market is to small for Dekelvic to make a SS four tail pipe system.
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