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The rebirth of Lazarus

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Bryanj:
There is one gear that must be replaced with its mating gear as Honda changed the tooth profile during the years of production, trouble is i cant remember which one, what happened is when you ordered either gear it went to a supercision part number and you got both

mickwinf:
ok i have had a look at my gearbox and the two broken gears are on the countershaft, the two that slide along moved by the two outer forks. on the parts book pic they are numbered 10 and 12. Also i need the gearchange shaft that the gear lever fits onto as i knackered it getting it out

Oddjob:
Should have a gearchange shaft Mick.

Countershaft 4th and 5th. I'll have a look at the NOS ones to see how they look and then see about seeing what else I have.

Oddjob:
Ok Mick, just did a deep dive through my old gearboxes, I threw a few out a couple of years ago as I got sick of looking at them. But it seems I still have at least 2 full boxes lying around.

First off, found a gearchange shaft, will clean it up and inspect it but looks ok at first glance, I know I still have another in another box as I keep moving it to get to smaller pieces. So I'll have at least one good one, hopefully.

No 12 on the diagram is Countershaft top gear, 23491-286-030, I have 1 of those, it's still on the shaft so I'll need to remove the 2 gears in front of it to remove it but looks ok. Will clean and check. Almost certainly another in my other gearbox box but will check this one out first. I also have a spare NOS one for some reason.

No 10 on the diagram is Countershaft Fourth, 23471-286-010.  This is the one I believe that Bryan was referring to as I had to buy both itself and the matching gear Countershaft Low, 23420-323-010. This may be because this gear was superceded from 23420-323-000 which was only fitted to the K0 version of the 500. So it could have had a possible problem when the K0 came out which was rectified in the K1 onward. As both of my spare boxes are from K1's it shouldn't be a problem. I have 2 of 23471-286-010 and 2 of 23420-323-000. One has the removable bush missing but yours should still have it. Need to clean and inspect all of the 4 gears before saying they are ok to use.

I'll let you know the result after the cleaning and inspecting process. Most important that gears are ok as any breakages etc are a bugger to fix after the engines installed.

mickwinf:
perfect, thanks Ken, let me know when you have checked.

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