KZ 650 Ninja 600 swap

Can anyone tell me if it is possible to put a 98 Ninja front end (tripple & forks) and swingarm on a 78 KZ 650, if not what options would fit on the KZ. Needs more stopping power.
cause it has
Yoshumira 810 kit cams, pistons, 4-1 Kerker, Keihin CR29 carbs Aprox 850+ cc.

Sure it's possible, just takes a little work.

How did you get 850cc+ with an 810 kit?

After the kit, and due to logistics. I work at the refinery here (Valero) they have a full machine shop and they love to play with thing's from outside, they helped me push the horse power, milled the head(resized bored, the head aluminum to accomidate bigger sleeves), took sleeves from a 750cc and bored them to the max!
I realize I cant compete with the Hyabusa's here, they think Suzuki rules ha ha ha!!! Need a Hyabusa Killer!!!! this mill can only keep up!

Steell,
Can you help?
I know I have to due mods, ready for that, but I need good info.

Max size on the 750 liners is 880cc, there are a few 880 cc GPz750 Turbos running around.

You could use a GPz750 (83-85) aluminum swing arm and cut the bottom linkage mounts off then weld them on to and still run dual shocks.

Like this:



You just have to drill out the pivot bolt hole to 17mm.

And you could bolt the 83-85 GPz750 front end on just by buying the adapter bearings from All Balls.

Like this:





Or you could make a new stem for the Zx600 front end and bolt it on, but I think it's a lot shorter than the stock 650 front end, so your headers will have clearance problems with the road and the front wheel.

To go to monoshock you will have to weld some mounting points to the frame.

Others have done it, I just prefer keeping the dual shocks.

98-2000 GSX600/750/2000 parts are a lot easier, thats what I have on my 80 KZ750E.
But I am using a GPz750 swingarm with the GSX750 wheel. The stock GSX swing arm is steel and rather heavy.

Unfortunately here on the rock I'm limited on resources, I just came across the Ninja frame. Need to be a bit of a Mac Gyver to get by here. Can I do anything with it?

Which rock are you on? Gibraltar, Guam, and Diego Garcia, are the places I have heard referred to as "The Rock". Johnson Island also, but I doubt you'd have a bike there, since you can walk acroos it in three minutes

I looked up Valero and they have a refinery in Aruba, is that where you are?

Measure the length of the front forks on both bikes, if it's anywhere near close you cam make the Ninja fit by machining a new stem. Is the Ninja front end complete? Wheel/brakes/everything?

As to the rear, you want to convert to monoshock or stay with twin shock?

Take a look through the Gallery here on KZR, there are at least a couple of 650's that have been converted to monoshock there. My Nephew (GPzInfested, owns the bike in the above pics) also has a KZ650 that's been converted to monoshock using GSXR parts, we didn't do it though, he bought it that way.

Not to digress, but I'm still a little fuzzy on the motor internals. Can you explain that again?

Maybe there is a language break-down...where is Valero?

Maybe there is a language break-down...where is Valero?

That part I can answer

Valero isn't a "where" it's a "who", as in a company.

It operates oil refineries all over the US, and one in Aruba.

Since he said he is on a "rock" I figured it must be an island, and Aruba fits the bill

I'm confused by the 810 kit and 850+cc as well. To get 850+ cc using an 810 kit would mean that the crank stroke has been altered to lengthen it. And that would require welding the rod journals and grinding them off center, or just grinding them off center and using rods with a smaller big end to fit the reduced diameter of the journals. And that would be a difficult job for a refinery machine shop, since it requires a crank grinder, or one hell of a machinist.


But you probably already know that, and that's why you are as confused as I am

he could have added a spacer and done some work with the head domes, maybe to drop it back down to stock compression... maybe.

I am also interested in how 850 was reached.

hardr0ck68 wrote:

he could have added a spacer and done some work with the head domes, maybe to drop it back down to stock compression... maybe.

I am also interested in how 850 was reached.

That's irrelevant, it wouldn't change the displacement, that's purely a function of bore and stroke dimensions.

Well to answer your question yes i'm in Aruba, was transfered here from Toronto. Sorry about the typo on the displacement your right, took sleeves from a 750cc pressed them in a bored to 69mm. maybe these pistons are not from the 810kit? Anyway was planning as you suggested to mill the stem on the Ninja tripple and yes it's complete have the whole bike less engine (bad crank). as for the arm would like to keep dual shock. can I modify the arm to fit this config? Parts are hard to get here as mentioned 90% of bikes here are Hyabusa 1300. My only option is the Ninja.