Author Topic: '71 cb500k basket case to road legal ( cafe ) conversion  (Read 9924 times)

Offline Ewan 500 K1

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Re: '71 cb500k basket case to road legal ( cafe ) conversion
« Reply #30 on: November 22, 2014, 07:14:02 PM »
360 centres on the new rear shocks. I've tried to compensate the forks by placing a 1inch collar/ spacer to reduce the spring sag and 160cc of sae 20 as per the book. I may need to tinker with the levels after my first run out tho. I know messing with the geometry can bugger the handling but I'm willing to compromise a little to keep the rear end lifted that extra inch or so. I would welcome any thoughts gods or bad!


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ah, same as mine then. I've put a steering damper on ....which was just as well as it hits tank slapping tendencies at about 85mph to 90mph. The damper just about makes it manageable. I'm going to try a custom made yoke set next (with 10mm les offset) next, I think that should sort it ... but mucho spondoolies so wont be happening in a hurry.
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500K1/550K3 mongrel cafe racer project for now at http://www.sohc.co.uk/index.php/topic,4120.0.html

500K1 basket case for later

Offline simonster

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Re: '71 cb500k basket case to road legal ( cafe ) conversion
« Reply #31 on: November 25, 2014, 02:48:18 PM »
I haven't planed for a damper unit hoping that the steering wouldn't be effected too much. If it is just too twitchy I'll probably start researching the easiest and best unit to fit, costs considered.


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Offline Ewan 500 K1

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Re: '71 cb500k basket case to road legal ( cafe ) conversion
« Reply #32 on: November 25, 2014, 05:37:11 PM »
i found it a bit further on than just twitchy ... and thats with the damper fitted !  I've used an NHK ODM 500, about £75. GSXR also fits but sits a bit high. First two photos are GSXR, other three are the NHK. Might be okay if you dont plan on exceeding the national speed limit I suppose
jings crivens help ma boab

500K1/550K3 mongrel cafe racer project for now at http://www.sohc.co.uk/index.php/topic,4120.0.html

500K1 basket case for later

Offline simonster

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Re: '71 cb500k basket case to road legal ( cafe ) conversion
« Reply #33 on: November 25, 2014, 06:41:03 PM »
It would have to be rideable at any speed or I won't be happy. Then definitely go with something similar to yours if it's needed, which I'm guessing it will if it effected yours that much. I may go for something second hand like the ginxer which will be easier to pick up at a second hand price. I know it sits high in your pic but I may extend the mounting pin to drop it under the tank if possible.


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Offline Ewan 500 K1

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Re: '71 cb500k basket case to road legal ( cafe ) conversion
« Reply #34 on: November 25, 2014, 11:27:03 PM »
really interested to hear how you get on Si  8)
jings crivens help ma boab

500K1/550K3 mongrel cafe racer project for now at http://www.sohc.co.uk/index.php/topic,4120.0.html

500K1 basket case for later

Offline simonster

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Re: '71 cb500k basket case to road legal ( cafe ) conversion
« Reply #35 on: November 26, 2014, 10:57:38 PM »
I will report back how it handles and I reckon the bike should be ready for its first start in the next three weeks. I have the carbs waiting on the spring washers to arrive before assembly on the bike  and the clocks to mount which I've just refurbed finished in their natural ss.



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Offline simonster

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Re: '71 cb500k basket case to road legal ( cafe ) conversion
« Reply #36 on: November 26, 2014, 11:01:07 PM »
Before.


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Offline UK Pete

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Re: '71 cb500k basket case to road legal ( cafe ) conversion
« Reply #37 on: November 27, 2014, 09:32:40 AM »
I like the look of those clocks simon
pete

Offline simonster

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Re: '71 cb500k basket case to road legal ( cafe ) conversion
« Reply #38 on: November 27, 2014, 03:29:38 PM »
Yes you'd never guess they were forty odd year old. The quality in their parts and assembly puts the new stuff to shame and i'm sure you would never be able to refurb a modern clock to nearly new in forty years time.


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