TOPIC:

Turboguzzi, could you ever take a look at the primary chain tensioner of the zr7 engine? Any pics? Couldn´t find them anywhere in the web.

undiablo wrote: Turboguzzi, could you ever take a look at the primary chain tensioner of the zr7 engine? Any pics? Couldn´t find them anywhere in the web.

hola pibe

lo podes ver aqui

www.ronayers.com/oemparts/a/kaw/500b260f...3e478fbd7/crankshaft

y aqui

www.kfm-motorraeder.de/cms/en/genuine-sp...rts?itemid=132351079

regretfully kz750 and gpz cases lack the three bosses to which you can bolt the tensioner to. but they could be welded on if the engine is totally dismantled. shouldnt be that hard to fabricate three weld on bosses

i noticed the main difference in how much quieter the engine is at idle and the lack of backlash in city riding on/off throtle. on the open road no diference really.

hata luego caballero

turboguzzi wrote: interesting, my european z750 (that's how KZs were called here in italy) didnt have the switch... my two gpz 550 / 750 did...

ripped off the whole internal thing and used the switch external plate as a blank off

I'd also considered that. All it trips is and "idiot light" which happens all the time when I'm coming slightly aggressively off from a standstil unless I slightly over fill my oil. I think I'll get the pan, pump and valve. I'll delete the switch and put in an oil gate for good measure.

Then keep an eye out for a decent engine.

Right now I have a 650 pan on my GPz n/a motor I didn't need the oil cooler at the drag strip
but now that I'm street riding it and a Texas summer starting I think I'll swap back to the cooler pan.

No eBay APP ID and/or Cert ID defined in Kunena configuration

zukdave wrote: Right now I have a 650 pan on my GPz n/a motor I didn't need the oil cooler at the drag strip
but now that I'm street riding it and a Texas summer starting I think I'll swap back to the cooler pan.

No spare then? I'll start looking for a ZR7 then. I'll have to swing by my local salvage yard, etc.

I did find this on ebay though. I'd buy it but my wife would draw and quarter me and put my head on a post.

That is a really good deal as long as you don't have to have it shipped.
I debated doing a zr-7 engine swap for a long long time, but between the zr-7 no longer having the lower front frame mounts, they used a completely different ignition rotor (The crank shaft is splined at the end like an output shaft where the bizzaro ignition rotor connects) that requires a more complicated/specialized ignition system (I'm using a Zephyr 750 ignition rotor and ECU that bolts straight up), and the fact that they still make less HP than a gpz750 I decided to pass.
Plus I am putting a gpz550 6-speed transmission in mine while it is apart, so I would have still had to split the zr-7 motor cases anyway.
But it's really cool to see that turboguzzi made it work.

Daftrusty wrote: That is a really good deal as long as you don't have to have it shipped.
I debated doing a zr-7 engine swap for a long long time, but between the zr-7 no longer having the lower front frame mounts, they used a completely different ignition rotor (The crank shaft is splined at the end like an output shaft where the bizzaro ignition rotor connects) that requires a more complicated/specialized ignition system (I'm using a Zephyr 750 ignition rotor and ECU that bolts straight up), and the fact that they still make less HP than a gpz750 I decided to pass.
Plus I am putting a gpz550 6-speed transmission in mine while it is apart, so I would have still had to split the zr-7 motor cases anyway.
But it's really cool to see that turboguzzi made it work.

Hey Daft,

You said that you are putting a GPz550 6 speed tranny in yours GPz750, is that correct? Do you have a thread chronicling this as I am curious to learn more and have some questions, just don't want to thread jack Moto's engine post? Can you give me a link to your thread, or should I just PM you a few of my questions, what is best for you?

Thanks,
Brett

Cool swap too bad you didn't get the exhaust with the engine as well. I put one on a 650 I had and man is it nice. Whisper quiet, made with stainless steel and really performs well.

Irish -Kawi
I am putting a 6-speed in a kz750e, but its exactly the same case as the gpz750's. I have been procrastinating on starting a build thread for my project bike, so If I haven't started one in a couple of days, and if you have questions you can PM me. I apologize to all for kinda having gone off on a tangent on Turboguzzi's post.

Daftrusty wrote: Irish -Kawi
I am putting a 6-speed in a kz750e, but its exactly the same case as the gpz750's. I have been procrastinating on starting a build thread for my project bike, so If I haven't started one in a couple of days, and if you have questions you can PM me. I apologize to all for kinda having gone off on a tangent on Turboguzzi's post.

No worries and thanks will check with ya shortly. Thread jack over sorry!!

Brett

I'm not sure if the 6 speed will work in the GPz motor because of the diff. clutch setup.
The shaft the clutch hub bolt's on has oil pressure to feed the clutch and had what
look's like a roller bearing that fit's in the clutch end as a oil restricter to keep from over oiling the clutch.
I think on the KZ motor's the clutch push rod does the same thing and the shaft may not be drilled to fit the roller.

zukdave wrote: I'm not sure if the 6 speed will work in the GPz motor because of the diff. clutch setup.
The shaft the clutch hub bolt's on has oil pressure to feed the clutch and had what
look's like a roller bearing that fit's in the clutch end as a oil restricter to keep from over oiling the clutch.
I think on the KZ motor's the clutch push rod does the same thing and the shaft may not be drilled to fit the roller.

You are correct in that the 1983-85 Uni-Trac gpz750's had a completely different clutch actuator than the non-push rod style clutch in the gpz/zx550, zr550, zr750, Turbo, and zr-7. But....The push-rod style kz750e and the Uni-trac gpz750's all share the same transmission shaft.
Kawasaki Part # 13127-1018 SHAFT
I compared my gpz550 transmission and the kz750 transmission and they both have a 10mm bore that is 34-40mm deep (the kz750 shaft is 6mm~ longer) that the pushrod ball bearing and plunger ride in. As I have never seen a Uni-trac gpz750 clutch actuator in real life, I wonder if the 92122-1019 ROLLER,10X12 just is kind of an oil restriction plug that floats in the transmission shaft bore and is held in place by oil pressure???