Kawasaki KZ750B3

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Kawasaki KZ750B3

Post  abarth850 on Fri 4 Jan - 19:12

I bought this bike over 5 years ago, and never really started work on it.
Couldn't figure out what to do with it, because of the beautiful picture on the manual (stock), some nice wrenchmonkees bikes, and never seeing a nice café made from this bike.
About two months ago I bought a Z250 tank and got a café seat from a swap...the bike started to take shape in my mind, so I started to order parts for the engine, brakes and drivetrain.
By now I have about 1500€ into the bike, so I guess I passed the point of no return
I am leaving the frame and bodywork alone until I finished the engine, so just some pics of the engine for now.
Waiting for the clutch and oilfilter to arrive before I can close the sides.




A brand new pair of pistons, scored on ebay really cheap



The rest of the engine, they get cleaned tomorrow



Carb set, cleaned, new jets and rubbers



The rest of the bike, looks sorry right now. It'll need a lot of work, as the tank and seat are too narrow for the frame + I want to hide the battery and electrics, use modern rearsets...



Unlike the previous build, I'll try to take more pics and post Embarassed

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Re: Kawasaki KZ750B3

Post  Toecutter on Fri 4 Jan - 19:22

Hey man, its nice to see a Kawasaki Twin 750 on the forum , i dont think there are any other.

This is one of the Japs i want to have in my garage, unfortunately they are hard to find here in the Benelux.
I think its smart to begin with the engine, i find that the hardest work.

Keep sharing the progress Cool

cheers


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Re: Kawasaki KZ750B3

Post  suzukiac50 on Sun 6 Jan - 16:31

Kurt,

Good to see The kawa-Project is started! :-)
Clean and nice looking engine is a good way to start!

SUCCES!!!!


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Re: Kawasaki KZ750B3

Post  abarth850 on Sat 12 Jan - 21:17

Some progress, Installed the new pistons, cleaned and painted the cylinder jug, fitted the clutch with new plates and heavy duty springs.




Bought myself a polishing machine to get some shine into some parts


And received some parts, mainly for the brakes, a new front master cylinder, gears, filter, cables, bearings and seals for the hubs and fork...

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Re: Kawasaki KZ750B3

Post  Toecutter on Sat 19 Jan - 19:05

Nice work , will you torque the cilinderbolts over night (24h) again ?

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Re: Kawasaki KZ750B3

Post  abarth850 on Sun 20 Jan - 21:02

@toetuccer: not sure what you mean with overnight tightening

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Re: Kawasaki KZ750B3

Post  Toecutter on Mon 21 Jan - 9:21

abarth850 wrote:@toetuccer: not sure what you mean with overnight tightening

well Kurt, someone told me bolts from the cilinderhead need to be tightened again after sitting at the right torque for 24 hours. I dont know if this is said in the shop manual for a kz750

the guy that told me was working on a cb750k4...

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Re: Kawasaki KZ750B3

Post  abarth850 on Mon 21 Jan - 17:49

Ah, thanks, never heard this before, but it's always worth doing I suppose.
BTW, how did the puller job on your hub turn out?

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Re: Kawasaki KZ750B3

Post  Toecutter on Sun 27 Jan - 9:27

Hey Kurt , i tried it with a bigger collet but no luck , i guess the set i bought is crap....i dont think i'm doing it wrong cause i am placing the collet in the wright place , the legs just shoot out of the shaft everytime i give it a few hard knocks....

pressing the bearings out isnt an option i guess?

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Re: Kawasaki KZ750B3

Post  abarth850 on Fri 22 Feb - 19:01

Small update,
The cilinder head is on, as are the camshafts.


Drilled some holes in the pinion cover.


Sandblasted the cam cover.


And because the engine is almost complete, started work on the forks.


Once the temperature is up in my garage, i can paint the last pieces of the engine...

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Re: Kawasaki KZ750B3

Post  Toecutter on Fri 22 Feb - 19:41

Very good work ! Im curious how she will look Cool

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Re: Kawasaki KZ750B3

Post  razzpoutin on Sat 23 Feb - 13:53

Toecutter wrote:Very good work ! Im curious how she will look Cool

me 2,all parts looking great already!
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Re: Kawasaki KZ750B3

Post  abarth850 on Mon 29 Apr - 20:08

With the motor finished, the forks were next, you saw the pieces, now here's the finnished item




The wheels are next, hubs are sandblasted, ready for painting

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Re: Kawasaki KZ750B3

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