Will 83 KZ750 LTD carbs work on an 80 KZ750 E?

80 KZ750 E carbs were broken when tryin to remove the jets (they are fused down inside the carb housing).

Both are Keihin CV34's, different models

I know that the number of jets are different. The carbs from the LTD have only a single jet, where the E model has a primary and secondary jet (for quarter throttle control).

May not run as well but would they work if jetted the LTD carbs?

I would guess you could use the carburetors from just about any KZ750-4. Most if not all of them have the same carb holders & airbox ducts, so physical fitment shouldn't be a problem. As for the jetting, most bikes of the era were jetted lean from the factory, so you could probably increase at least the main jets a size or two & do some basic tuning.

I think all of the 750-4 airboxes are pretty much the same. Some had a paper filter, but the later ones had a foam filter that requires oiling. Not sure how much of a difference that makes for carb adjustments.

you could fabricate a manifold and use a 100 cfm single carburetor, not sure where to find one of those maybe a Harley sportster 1200.

what I want to know is will a kz550 bottom end work with a kz750 top end, keeping in mind that torque is made more so with a larger crank, and power is made more so with a larger bore.

oh yeah you should start your own thread

Should work fine.

donthaveakawman wrote: what I want to know is will a kz550 bottom end work with a kz750 top end, ...

The 550 is a different engine.

It would appear that the 80 kz750e are the same carbs as the 80 kz750 h1. they are kiehin 34mm cvc(constant velocity carburetors) vacuum operated slides with throttles. a primary main jet and a secondary main jet, a pilot jet and a idle mixture screw(give or take).
My kz750 h1 occasionally gets a stuck slide, and when it breaks free it is good to have my hand near the clutch.
The main issue you need to deal with is finding a throttle cable and the measurements of the carburetors for the carburetor holders. :woohoo:

donthaveakawman wrote: keeping in mind that torque is made more so with a larger crank, and power is made more so with a larger bore.

:huh:

yeah, those carbs will never work, next time you should think mechanic, not technician. these things are brittle and get corroded and stuck with age, next time heat it up with a torch before you take the jets out, the spectre has littler jets than the 1980 e.