SOHC.co.uk Forums > CB500/550

good old fashioned british know how

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K2-K6:
Just a further thought, many of the Honda twin cable arrangements have a fixed non adjustable cable to act as the safety return pull with the opening cable being adjustable for length.

This is so that you can set enough slack into the operating cable to allow the bars to go from lock to lock without pulling the throttle open and changing the speed of the bike unintentionally so I would say you have to be able to set it up like this to make it ok.

If you think it through further, if the bike were involved in an accident and subsequently inspected by a motor vehicle engineer do you think it would stand up to that level of scrutiny because your insurer would expect it to.

captaindonutbikes:
good point.

the return spring on the carbs snap shut when the throttle is released. i know that some race setups only use pull only so may be worth looking into.

K2-K6:
Sounds like it's coming along though, some pics would be interesting to see.

I've even ridden many things with "get you home" interpretations in the past but everyone gets so serious about stuff like that now so if anything is percieved as wrong somebody somewhere starts demanding answers.

I think the original reason for two cables was that they normally had one return spring so in the event of failure you could manually close the throttle. If you have more / backup springs, then I'd guess you've no need to have a second cable.

captaindonutbikes:
There is more than enough slack in the cable for lock to lock.

if it passes an MOT then surely it would withstand engineering scrutiny in the event of an accident?

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