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New (to me!) '77 CB400F - US model
K2-K6:
General rule for heating steel is never to quench it after heating, unless you know specifically that you need to change the properties intentionally.
Heat treatable steel gets harder and more brittle when quenched, so its a property you'd specifically ask for in that process. That's if it's of that metallurgy.
The gear lever you should be able to do cold ( don't try to bend it when installed though as you risk damage to shaft) clamp the flat bit vertically in a vice with the rubber bit pointing upward, not too tight as you are only needing to restrain it, then put an adjustable spanner on the flat piece right next to the rubber and twist it to correct angle. It'll usually go fairly easily.
mattsz:
Thanks guys - I was researching heat treating online, and although I understand the processes a bit, I wasn't getting any hints about what was preferable in my circumstance.
I'll try the side stand this afternoon; the gear lever is still on the bike and although I definitely planned to remove it before trying to straightening it, thanks for the reminder - it wasn't uncalled for! ;)
mattsz:
I think this shift lever has been repaired. Can someone (maybe with the forward US-style foot pegs and non-linkage shift lever) confirm that this isn't the usual honda weld quality? EDIT: the 4into2 replacement, pictured above, has no weld at all...
Click to zoom if so inclined:
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taysidedragon:
That looks similar quality welding to what's on my UK gear lever.
There's chrome over the weld so probably original.
mattsz:
Well there you go. I just assumed that the OEM would have been a one-piece casting like that after-market job, and therefore my welded one must have been broken and repaired.
I bent it "back" to where it looks like it should be right, but without the bike present, it's hard to know! We'll find out soon - easy enough to fine tune it later...
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