SOHC.co.uk Forums > CB500/550
Is this a genuine clutch lifter push rod mod or what...
simonster:
I have a 500 k1 with a push rod in two parts from the clutch adjuster to the clutch plate lifter,approx 4 inch and 6 inch lengths with tailored ends no burs. I know the parts book shows one piece. Is this a later mod or has the previous owner adapted two to save on the cost of buying a replacement. If so what are the con's of this set up. The clutch seems to work OK without any engine load but haven't ridden it in anger yet. The engine is on the bench at the moment so probably the best time to replace it depending on the advice?
s7paul:
I'm pretty sure they were all one-piece items. The usual reason for a two-piece pushrod is that it's broken. I don't see why anyone would have done it intentionally.
mickwinf:
yes should be in one piece, quite hard to find now as not available new, could probably make one out of some rod.
SteveD CB500K0:
I remember discussion on this on .net
Ah, here it is (I wrote it up as a FAQ)
http://forums.sohc4.net/index.php?topic=369.msg949314#msg949314
SteveD CB500K0:
Here's the text (Shifter19 and Number13 are the members on .net who actually did the work):
As of this writing, CB500 clutch push rods are pretty much impossible to find anywhere. They come up on Ebay every now and then but sell for $50+. That's just stupid for something that may well break again...
So, between Shifter19 and Number13 (seeing a theme here?):
Measurements for a Honda OEM pushrod are:
10 1/8 inches or 257 mm long
3/8 inch in diameter or 9.5 mm
You can easily fashion a push rod from
3/8" steel rod found at any hardware store.
The shifter side end should be ground flat and square,
and the brake side end should be neatly rounded in a semi-sphere
to mate with the clutch basket. If you err, err on the side of a bit too
long since this will allow you to keep the lifter mechanism low and avoid cracking.
May also be a good idea to quench harden the ends.
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