basic kz and fork swap info

hi everyone
iv been googling and researching what i can.
but i still need to know a few things.
i have a 79 kz750 2cyl(twin ya?) isnt there a 750 4cyl? what is that called?
the 79 what generation was that from? example: 76-80? so i know what year parts are exact.

what is a flatside carb?

fork swap...
im looking for something inverted. gsxr6-750 of the like.
anyone know what would be a direct swap? im aware of the allballs bearings website.
i hear the term "stem" bearing" triple tree" im learning slowly.
the stem..hopefully theres a front end with same length stem? then just get bearings that mate it all together?
anyone swap this bikes forks for the new gold inverted forks? have the receipt?
i found a few threads but its all scattered and lacking full info.
any help is apreciated.

There are 750 four cylinders as well. I don't recall offhand when they switched, but they are still called KZ750's (I find it odd they kept the model designation for that big of a change, but oh well). Models are distinguished by a alphanumeric appended to the end of the KZ750, for instance, I hve a KZ750N2, which is a 750 Spectre. Not sure what all the other ones are, but you should be able to look up or ask to find out what your specific model is.

On Kawasaki.com, you can find parts diagrams for old bikes, that show which other models and years used the same parts, so interchangeability is readily available there, which is nice.

I don't know much on the suspension swaps, so I'll probably be lurking here seeing what I can learn.

^took me four tries to get that to show up.

Howdy. Your KZ750 is a 750-Twin. If the year is correct, it's a B4. The B models were available from 76-79. I think the 1980 750G is pretty similar. The 82- 84 750-Twins are somewhat different, but I think the engine & transmission stuff is pretty much the same. A couple of later ones were belt drive (K models).

rabies wrote: hi everyone
iv been googling and researching what i can.
but i still need to know a few things.
i have a 79 kz750 2cyl(twin ya?) isnt there a 750 4cyl? what is that called?
the 79 what generation was that from? example: 76-80? so i know what year parts are exact.

what is a flatside carb?

fork swap...
im looking for something inverted. gsxr6-750 of the like.
anyone know what would be a direct swap? im aware of the allballs bearings website.
i hear the term "stem" bearing" triple tree" im learning slowly.
the stem..hopefully theres a front end with same length stem? then just get bearings that mate it all together?
anyone swap this bikes forks for the new gold inverted forks? have the receipt?
i found a few threads but its all scattered and lacking full info.
any help is apreciated.

here is a post from Leon that will show u exactly what is involved in a tree swap.
kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

in most cases the donor stem is too short so u need to swap it out with your kz stem.

a flat slide refers to the shape of the carburetors internal slide. old school carbs had round slides. the flat slide is narrower front to back, this provides a stronger vacuum signal at low rpm's. as the carb size increases, u get better top end power, but this larger size means the vacuum signal at low rpms is weaker. A weak vacuum cant pull the fuel from the bowl as quickly as a strong vacuum signal. So as the carb gets larger it provides better top end performance but worse low end performance. The manufacturers found that altering the slides shape to be narrower, would increase the vacuum signal. So all modern slides have varying shapes, along this flat style. There r only a few options available to use that will fit our old bikes. Most r vacuum operated (a separate vacuum signal actually operates the slides up and down motion ). These r commonly called CV or CM carbs.
Some , more race oriented flat slide carbs have cable operated slides. the most common 1 would be the Mikuni RS carb.

Much appreciated info kind sirs

Upside down forks increase your turning radius by a bunch, you end up backing up three times to make a U turn. They look cool but 2000 Suzuki Katana 600/750 forks will bolt on with a simple bearing swap and work a whole lot better than stock.

I can make a U turn inside my converted two car garage with my 750 twin, but I have to back up twice to do it with my ZX12 with USD forks.

less turning radius because the top forks are thicker and hit the tank?
hmmm i could bang in the tank like i did my other bike.
i still having picked up my bike yet its raining here.
SSSA anyone..... :whistle:

rabies wrote: less turning radius because the top forks are thicker and hit the tank?

Partially. The other reason is that newer sport bikes run less offset on the triple clamps than the older bikes. This places the fork tube center-line closer to the steering stem.

Later, Doug

u have to make new steering stops so u dont hit the tank .