SOHC.co.uk Forums > CB500/550

Mirror vibration Prevention?

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AshimotoK0:
Have a ride on a Honda 180 degree crank twin then jump on your 500  .. you will forget the vibration  :)

florence:
yes Ash.  Things that fell off my 350 through vibration, all of which was firmly attached when I set off:

Rear light and number plate! (somewhere on the way back from NEC? )
Silencer! (at high speed, hit wheel and flew into a field, luckily no one died)
Tool box lid!
Side panels!

matthewmosse:
I always found my 550 and 500 very smooth, but then that may be that I just tended to push on through the vibration or slow down a bit. The vast bulk of my milage was on the 500 and that had a sidecar so may just have been reving that bit more or less and avoided it, or the sidecar acted as a damper. I think the mirrors on the 550 may just have had some sort of extra joint in them( possibly the anti vibration feature mentioned earlier), looked ugly but those who know me and my attitude to bikes will know cosmetics never bothered me, other thing was both bikes had non standard handle bars, a bit high up / ammerican custom inspired. Only thing I altered was a lockable boot on the sidecar and removal of most of the gold paint on my 550 that had been crudely slapped over any rusty chrome, and only after it started flaking off the crashbars in big chunks.

deltarider:

--- Quote ---I always found my 550 and 500 very smooth, but then that may be that I just tended to push on through the vibration or slow down a bit.
--- End quote ---
Yep, that's how I do it. Had those socalled vibrationdampers too but never noticed much difference.

matthewmosse:
If that is why I found them smooth it was subconcious, I was only aware of vibration if rolling the throttle open in too high a gear on the 550, and that made the clocks and everything else shake like mad. I get the same off our Citroen berlingo run arounds. With those you use a lower gear, smooths it out and reduces fuel consumption, and is faster.
Thinking sideways a bit, thd cb500 sidecar that never exhibited the shakes at all also ran a k&n filter that retained the stock phenem chamber and doubtless bigger jets and a very free flowing exhaust, power was I think up a fair bit as a result of this, not that it ever went near a dyno, but the ease with which I could open a throttle and send it sideways suggests to me it was sporting more gg's than when I put a stock cb550 engine and filter setup in, though I dont recall vibration being an issue it was not as smooth a feeling machine - might be the fact it was getting very worn elsewhere, might be the different jetting or engine capacity. Do the experts on re jetting feel it might say coincyde with a flat point in jetting / power. I have never done much with carbs, I tend to think of them as too much trouble to tamper with.

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