Honda-SOHC

Just took delivery of my rear sprocket and it isn’t the correct one! I got mixed up in my earlier post, the sprocket that’s arrived today is from Wemoto which I ordered after the eBay episode.

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It’s out of stock at DS and CMS. I tried two suppliers on eBay, one has no stock despite listing the item. The other reported “stock issues” after I asked for a refund and then a day later promised delivery for next week. The item is now apparently on its way.  I feel a saga coming on….

I feel your pain, I've been waiting two weeks for spark plugs that were advertised as in-stock but so far nowhere to be seen!
Was the old sprocket worn out? I was lucky with Ratty because although the drive chain was seized solid the rear sprocket was perfect apart from the PO having it chrome plated! I had that removed and it was refinished in BZP and it has come out like new.
I think we are both in the same place with our builds. Every time I think I am on the home straight I go to fit another part and I find something else is missing, currently waiting for the two long hex nut studs that hold the headlamp frame to the top yoke. These are due next week.
This is the story when you buy someone else's idea of what they think a bike should look like including pod filters, black painted engine, chrome sprockets and engine plates, fiamm horns, wide wheel rims, cow horn handlebars etc. The result is all the small but expensive and difficult to get parts would be thrown in the bin years ago! It's all thanks to the great people on this forum that Ratty will live again as a 400/4 and not end it's days unloved in a shed.
As for Peter Horton, the man is an absolute guru and a wizard when it comes to restoring our clocks. I can't believe how he brought my clocks back from the dead and converted the rev counter to a 400/4 item from the 250 item I gave him👍.
Good luck with your continuing restoration, it's obviously going to be a great bike when it's finished and looking forward to seeing the finished result 👍.

Good plan and one I should put into practice 👍. Although being retired I could get the best of both worlds, some days fettling and others riding, I just need to get the balance right!
But yes, get it back together and enjoy it, that's why you bought it. Don't forget to allow plenty of spare time during any rides because it will draw a crowd and you'll have to answer questions 😁

Very nice looking motorcycle with a perfect backdrop.
So, what is a Churchill barrier Ian?

Dave, its only the later ones with a rubber seal, early ones the seal is the felt ring, i think i still used the caps with the bronze bushings though

I've been hanging around 400/4’s for too long Bryan, I thought looking at the parts diagram the end caps were the same as those on a 400. Every day is a school day on the forum👍

I just use normal grease, no fancy high melting point or copper grease just the same grease I use for bearings and swing arm bushes etc.

Looks alright to me George as long as you knock out the bolt holes first! I grease paper gaskets on both sides, I just think it makes it easier to remove them although there are various thoughts if it is a good idea or not considering the heat of the engine. You shouldn't need any form of other sealent, Honda didn't use any and they made the bike!

On my original 400/4 I zip tied the box on the top frame tube and just clear of the carb bank as there was just enough room for it to sit between the fuel tank tunnel and the frame tube. I thought I'd had a result until one day when giving the bike a handful it topped out at 110mph🙄, (actually it was about 70!). The CDI box had slowly worked it's way back down the frame just enough to interfere with the top of the carbs at full throttle.
I'm 90% sure the Boyer does use a wasted spark Ash👍