CB750K7 resto

[Honda enthusiast]

Was looking for replacement shocks about an inch longer to make it easier to get on the centre stand and came across this Honda 750/900 dohc pair new at £170 of list, couldn't resist as I had a pair on my Kettle and they are head and shoulders above others available

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[Honda enthusiast]

And after plugging all the ports and breathers, I've soda blasted to engine as a first attempt to clean it...I'll be completing that job with brushes and gunk red degreaser on the bench before painting with vht silver...after blasting I've removed the visible engine bolts to zinc plate them, the lower crankcase halves are secured by the side casings and some bolts from my bolts box to stop them separating and breaking the Honda bond seal...

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[Honda enthusiast]

It's going to be an easy makeover, the bike ran perfectly before the strip down to paint the engine, so it's getting a powder coated frame and brackets, chrome getting redone in triple plate, engine paint, zinc plating of fasteners, brakes overhaul, Dyna s ignition and fireblade coils and a new David Silver replica four pipe exhaust...the front rim is getting replaced with a nos DID genuine one I've had for years...i hope to have it all done for autumn this year

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[Honda enthusiast]

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Yesterday finally got my finger out and set up the plating kit and by three in the afternoon today had almost all the zinc plating done...just the engine jis screws and the stand springs and mounting bolts to do...I'm happy 😁 ahead of where I thought I'd be
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[Johnny4428]

That’s major plating been going on there Shuggie, very satisfying especially after all the cleaning.

[Honda enthusiast]

i'm with that Johnny, I was expecting for it to take weeks so well pleased. Its a learning curve and the first time i've been able to apply methods I've learned doing the Kettle previously. Just time saving methods of stringing the parts together and using a magnet on a stalk to recover parts that inevitably slip off....

Better weather tomorrow to do some fencing till Wednesday and then go through the parts, replate rejects and get the stands fixings and springs off the frame and the cover screws for zincing. Also to have a good look around to check there's none missed, very annoying to find some when the plating kit has been stored.

 I've decided to do my own polishing so the covers are coming off to strip old lacquer off and polish and half decided but unsure whether to strip the engine to do the engine paint bake on with bare cases....its only got just under ten k on the clock so it might do more harm than good...

[Spitfire]

That plating is ever so impressive.

[McCabe-Thiele (Ted)]

I agree it's as good as if not better than  my local platers.👍👍👍

[Honda enthusiast]

Thanks both of you 😁 Spitfire and Ted

I've been sending zinc plating to Derby plating for years but the last job for my Honda Bros was £150 all in so with that and the nagging worry if Royal Mail lost the parcel made me do it myself...Ian ( Orcadian) gave me some encouragement and I haven't looked back.
I've had better results this time by careful washing off between acid, alkali cleaners and the plating baths.The surface prep with the wire wheel and gunk degreaser has also helped as well as the clear blue passivate being warm in a plastic bucket...I think it was reacting with the stainless container used previously 🤔👍

[Jan B]

Quite impressive plating you've got going there!
I think i have to give it a go myself because my local plater doesn't take new orders soon. Too busy.

[Honda enthusiast]

Quite impressive plating you've got going there!
I think i have to give it a go myself because my local plater doesn't take new orders soon. Too busy.

Look at the Gateros plating website, and Dan one of the owners is very helpful...with anything like this results improve as you work at it... pm me if you need any input

[Honda enthusiast]

I've stripped the engine now and it's over to cleaning prior to paint...the insides are in good condition with only the primary tensioner and cam chain rollers need replacing....I have a good HD camchain from Nurse Julie and a genuine primary chain set... from memory it's a bit different in detail to the K4 but fortunately I got a genuine manual for it from Honda classics [ Guests cannot view attachments ]

[AshimotoK0]

I recently  asked one of our resident gurus on here about CB750 primary chains and he advised me to stagger them... like this:-

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[Honda enthusiast]

Cheers Ash I'm not with you on your recommendation, aren't the teeth on the two sprockets machined in pairs , so how could the chain be staggered?

[McCabe-Thiele (Ted)]

I'm assuming it's the chains rivet orientation.