SOHC.co.uk Forums > CB500/550

CB550K3 - Fork Springs - Which way up?

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hunterso:
Nothing's ever straight forward is it  :-\

The one thing i did notice is that with the tight coils downwards, the other end of the spring was a nicer fit into the slight indent in the fork caps.

Anyway its all back together now - will see how they feel when its back off the stand and on its wheels.

hunterso:
Update:

Bike back on its wheels now aaannnd...... the forks are crap - really crap  :-\

Push down and they stay down - have to pull on the bars to get the bike back to normal

Used 10w castrol fork oil and put 185cc in both legs measured with a big syringe type thing.

Checked for oil leaks and all is well.

Going to put it back on the stand and turn the springs round again.

Does anyone know what the free length of k3 springs should be?
In the manual it just says to measure the free length but it doesn't explain what the measurement should be.


Buggeration!

deltarider:

--- Quote ---Push down and they stay down - have to pull on the bars to get the bike back to normal
--- End quote ---
Did you tighten from the bottom to the top and by the manual? It is easy to do it wrong and as a consequence legs will bind.

Green1:
Buggeration indeed

I emailed hyperpro a few days ago and forgot to post they recommend putting the tighter coils to the top but also said it doesn't matter what way they go as the spring will work the same either way up.I was told tighter coils to the bottom you will get less spring noise but they recommend the other way up not to affect the oil level in the leg.

Mick

Trigger:
K3 forks are 165- 170cc, and 10w synthetic is a little light for these old girls, try 15w. Tight to the bottom for the spring. Something wrong if the spring is not returning.

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