Can you add a photo of it?
Jan.

As far as I know and found out, is that the CB750 racing type was the four bikes that Honda built for Daytona 200 in 1970. some people say that they have a different steel in the frame. It also have a welded bracket on the frame for the steering damper. As for the engine, it looks right that it has 61.5mm bore, as it was max. 750ccm that counts.

In 71 or 72, Honda built some CR750, where CR stands for Client Racer, and then introduced the racing kit that was sold for private racers. The CR has hinged clip-ons, and a separate bracket for the steering damper, placed where the ignition bracket is. The first series of CR-parts was numbered 970 and there was a later series and modifications that got 971. As the first series of CR31 carbs was sandcasted, the later was diecasted and got number 971. Most of the engine parts is different from a stock engine.

Do you have some photo's to share? I am soon start to build a Cr750 myself, and have collected some parts for it, but it is a long way to go...

Jan

Long time ago I bought silver coloured electric sleeves and duct tape for some wire harnes on ebay. Now I need more, but can't find somethings on ebay. I need it for my CB750 Police and some other Honda twins
Does anyone know where I can get it?

 Thanks, Jan

I see that there is someone who think that a sandcast have high milage here. There is a man here in Norway who is 68, and bought his sandcast in 69. He has sold it 2 or 3 times, but always bought it back. He still ride it, and say he is a biker, not a "chrome polisher" He ride the bike summer and winter, and do a 700 km trip with only stop for filling gas and the on the road again.

His bike has in August 2012 gone 570.000 km, or about 350.000 miles.... he has replaced piston one time, and the primary chain and cam chain, the rest is still original.

His solution on the long milage: Replace oil every 3000km with castrol GTX

Jan

From CMS I see that the baffles change at 4149 as Steve say (Lotus root) , but there was also made a change on the 2 upper muffler and the footpeg bolt on serial number 1222. Does anyone know what that change was on the mufflers (the bolts I know about, but I think that was together with the lotus root change on 4149, but I see that I was wrong about that)

So, the early no no lotus root muffler that Yamia have reproduced, wich one is that?

http://www.cmsnl.com/honda-cb750k0-four-usa_model14346/partslist/F16.html

I have used HTS200 to fix fins like that on a couple of CB92, works great, and you dont have to cut out other pieces.

Hi Eli
Are you interrested in selling your old unmarked pipes?
Jan
Norway