1975 CB750 P2 Police Bike

[philward]

Looking really good James

[Spitfire]

A thing of real beauty, looking good

Cheers

Dennis

[JamesH]

Thank you to everyone who’s taken the time to comment and feedback, it’s really appreciated.

Small progress this evening - the headlight bucket has now been fitted and had to convert the Honda indictors to a ‘2-wire’ setup to provide the earth they would normally get on a 750 via the stem.

Wheels had the new rubber fitted today and are ready to go back on the bike over the weekend (time permitting).

NOS HM341’s hanging ready for installation.

[Oddjob]

James this is so good it's getting boring 

[SteveD CB500K0]

It is a bit suspicious isn’t it.

Don’t you ever get a stuck bolt James?
Or drop a tiny bit important bit on the floor?


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[Johnny4428]

This project is fairly taking shape. Looking forward to more! Speaking of losing something, I lost one of the small rivets off the VIN plate when I was putting it back on to frame, after being so chuffed to have salvaged them in the first place. But amazingly after the third day of looking I found it and thankfully it is now fitted where it should be. I have lost much bigger things and still not found them.😂

[Oddjob]

I've lost a bag of around 100 mixed crankshaft shells for the 500/550. Put it down around 20 odd years ago and no idea where they are now, the wife might have thrown them out, as wifes do.

[andy120t]

What goes in the little box at the back? My guess is sandwiches?

[Oddjob]

What goes in the little box at the back? My guess is sandwiches?

An extremely small Japanese mechanic for when the bike breaks down or needs a service, unfortunately he died whilst in there and James hasn't been able to source a NOS one yet.

[JamesH]

What goes in the little box at the back? My guess is sandwiches?

An extremely small Japanese mechanic for when the bike breaks down or needs a service, unfortunately he died whilst in there and James hasn't been able to source a NOS one yet.

. I once worked on a project with Toyota, developing one of the last commercial IDI (indirect Diesel Injection engines) for production. I was responsible for the design of the pre-combustion chamber, the last iteration of the Ricardo ‘comet’ chamber design.

The project team in Japan sent us a Fax, in response to my request for an EEPROM programmer to re-flash a new engine calibration onto the development ECU - and it literally had one line that I’ve never forgotten: “We are dispatching Inoue-San”.

My equivalent counterpart in Japan was called Mr Matsudo Inoue (hence Inoue-San) and based on the fax I was expecting him to arrive in a box shipped by DHL .

2 days later he arrived at 9am promptly, spent 1hr reprogramming the ECU with the supplied calibration data-sheet, left us the EEPROM programmer unit so we could do it ourselves, and then buggered off back to Japan.

Possibly one of the most bizarre (but quite efficient) business exchanges I’ve had .

[JamesH]

Here’s the latest instalment…

Rear end is pretty much finished - I’ll probably need to sort a chain with an extra link (as it’s running a 48T rear sprocket), or I may just go for a 45T sprocket.

Just need to drill the rear fender and fit the rubber ‘fender extender’ and will re-focus attention on the front end.

The front fender is loosely fitted but I’m waiting for a few bits from CMSNL in Holland to arrive before I can fit the handlebars, front fender stays etc.

Fitted the NOS brake hoses, the upper hose being slightly longer to accommodate the police ‘high’ bars.

Oh and I had to 3D print a test piece for the missing (and NLA) siren actuator spring holder. Luckily CMSNL had a photo on the website that I was able to use as a general reference. After 3D printing the sample it dawned on me that the overall shape looked familiar. The small metal plate that comes mounted to the underside of most Honda CB front master cylinders is almost a perfect outline, so I’ll modify one of those for the final item. All good fun ha ha.

But, at last she’s back on her feet and really starting to ‘take shape’ now.

[Oddjob]

I presume that weird contraption on the swinging arm is for the siren? it reminds me of an old cycle dynamo we had to run lights back in the 60s.

[JamesH]

I presume that weird contraption on the swinging arm is for the siren? it reminds me of an old cycle dynamo we had to run lights back in the 60s.

Yeah exactly that - cable driven siren attached to the friction drum (hand operated).

[Lobo]

Stunning / beautiful work!

Another similar restoration here - odd that he’s got the Wings backwards on the side covers? (tho’ not in every pic)

https://www.digitalpizza.com/1970-honda-cb750-police-special

This your bracket James…. at the bottom of the ‘shock?
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[JamesH]

Stunning / beautiful work!

Another similar restoration here - odd that he’s got the Wings backwards on the side covers? (tho’ not in every pic)

https://www.digitalpizza.com/1970-honda-cb750-police-special

This your bracket James…. at the bottom of the ‘shock?
(Attachment Link)

Thanks mate - yeah familiar with the ‘DigitalPizza’ bike. Had the same thoughts on the wings lol. And yes, that’s the same bracket - hadn’t spotted that before..I still think it would look nicer tucked away behind the shock so I may relocate later on.