SOHC.co.uk Forums > CB500/550

Fork oil

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popwud:
Starting to put things back together on my 500/4 74.

New bearings in stearing head and struggled with the fork oil seals, easy when you know how.

But my question is what fork oil do I use, book says 10w30? surely a single grade would be used today.

Cheers.

K2-K6:
Thought there was something on the forum about that being incorrectly stated in the manual but can't be sure, anyone else remember?

Usually most of them are about a straight 5 or 10 grade for std forks, too heavy and they just don't respond to road bumps but just shake the bike up and down.

popwud:
Thanks for replying, I did have a look round and settling for Halfords Castrol ATF TQ D111.

Theres quite a few references to 10w30 fork oil, I wonder if thats what was in forks originally.

Bryanj:
Originally Honda used engine oil, then TQF but today the best is to use proper fork oil at about 20w

popwud:
Thanks Bryanj but 20W seems a bit heavy for a road bike.

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