Topic: CB650 Head

[Elkie]

Wanted to confirm what I read in a post I can't find anymore. So only the 79/80 head will match the 750 carbs? I picked up a 81 engine, but before I buy carbs I wanted to figure out what can fit. If I can't use 750 carbs am I limited to the stock 650's? Thanks in advance.

[cb650]

Yes the 79/80 will work. The 81/2 has a wider spacing. 

[Elkie]

Thanks for the confirmation, I read in another post that kawa ninja 600 carbs will work on the later head any idea what years of the 600 these are?

[Pinhead]

I believe there are different manifolds to adapt 750 carbs to the later heads. IIRC, you have to also use the Ninja intake boots to make the carbs work. Don't quote me on it, though.

[Elkie]

looking at a set of carbs off a 95 ninja the boots angle inwards, still looking for pics of other years.

[paulages]

PM Soos about the ninja carbs for that head.

[faux fiddy]

Wider spacing, or whatever where there's a [person with] a will there's a way.

This is a recently completed project a friend had to do. After adjusting and modifying, jetting, grinding needles and anything else he could do to his rz he realized that his mikuni conversion would be much easier without so dang many screws getting to the carbs, but still use the stock air box.

The solution was to make the velocity stacks slightly eccentric. I takes careful measuring, a cnc machining center and cam programs.







ANYTHING CAN BE DONE!