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CB750K Sidestand mod?

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K2-K6:
Yes Simon, I can understand the feeling of trepidation regarding fitment in retro of things like this. Obviously reliable as manufacturers fit but backed by considerable r&d plus durability testing.

A friend has an F2 but stored currently the "wrong way round" to easily inspect and assess. Can arrange if no other information is forthcoming to help.

Have got F2 manual pictures available if helpful to you. The tab is only a very small mod welded to the side of stand that could easily be replicated on a K2 example to facilitate fitment of a Honda rubber foot, which maybe a way to get there. 

Oddjob:
One on Ebay in Germany, also a K7/8 one on Ebay in the UK but TBH they don't look identical

https://www.ebay.co.uk/itm/165590797970?hash=item268dfb0e92:g:SN0AAOSw9XxhO5jn&amdata=enc%3AAQAHAAAAoAa5wesWJcL%2Fk8KS6NI6budXp4QORJn6DMvE8aIpUvSOe7hlod486qQJbLPH9k7Rjedwl6NWvX%2F2SGU2kgVA3DyIOQmUcckSINtRZFftUiBXNtqW445TTP%2FKbIhFSxSAxEGzhsr0e6NAmMRWyx%2FOcRHU6ROupaamt%2B54AtzDOTOgC6zEWiNq5qVPuu9Sx3F%2BKzF5uK0t3dHDzMHoSkxZfEA%3D%7Ctkp%3ABk9SR8zZyNqWYQ

https://www.ebay.co.uk/itm/313653049867?hash=item49072dba0b:g:A54AAOSw2sdhKQn3&amdata=enc%3AAQAHAAAAoD%2FxxNaj84bnT9ty1%2FSJwRfVNvZFa1YqauwlZ4v56ZupTiLAUKYu%2BA34wRLKOYW%2B%2BQESYwbgvgNOo4E8WHH7BNzWpomcMbpDe5uYFGZNGkn0Oeh0y0H9ywNbULak5Me%2BxvrZftgo%2FyKm1hxcXZIjT32h8%2BZPDsMnL02Wn4hbAkTFLgdPG8vr%2B2Sz1JMzi99AlSxnmyk1NR5Y9V19tn3BXLY%3D%7Ctkp%3ABk9SR9a11NqWYQ

Lobo:
Thanks gents; much appreciated. I too have been digging, and yep Ken, the F model sidestand appears different.

Notably the K5 sidestand is a different part # to the K2/3/4, and includes the rubber. BUT, the K5 frame # is the same part # as 2/3/4, so I assume the K5 side-stand should fit a K2 frame. Am I correct in this assumption?

Nige, whilst not interested in bastardising my ignition circuit, I looked at the circuit diag you provided and am somewhat surprised in that it is not FAIL SAFE. The (Bosch type) relay is depicted as a Normally Open (NO) type unit, meaning that electrical power is needed to hold the relay closed to energise the ignition coils. Ergo, an open circuit failure in the sidestand sub-circuit will de-energise the control coil relay, causing the contacts to open and thereby cut power to the coils. (= engine failure!)
Along the same lines, whilst not made clear in the diag you posted, I’d suggest the Neutral and Sidestand switches be both NO type switches if possible - again in the interests of Fail Safe.

OR - am I missing something? (I’ve included what I reckon I’d be doing if going that route, specifically using a NC (Normally Closed) type relay)

(a look at my Moto Guzzi set up was not much use as clumps of wires just disappear into various computery things. Dang)

Bryanj:
As you are asking for the bike to not stay running if the stand is down the "fail safe" mode is for the bike to not run at all wherever the stand is.
If you think a circuit failure is possible and overide/changeover  switch could be fitted somewhere.

The idea is similar to the auto car that will only start in neutrat and if the gearbox switch fails it wont start, way back in my day was one of the first things checked on a no start job

SteveD CB500K0:

--- Quote from: Lobo on November 26, 2022, 12:14:51 PM ---A far better solution might be a starter motor inhibit

--- End quote ---

Dreadful idea in my experience.

I had a Triumph Daytona 1000 (the four cylinder one from the 90s) that had this.

As I had about 12 of Eamon’s bikes in my barn at the time, it only got used once per year (3 miles each way for an MOT) so I could never start it. The starter would spin but it would not fire up unless the sidestand was in the up position.

Hours (well OK, minutes) of frustration.

It didn’t have a centre stand so you had to actually sit on it to start it up.


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