z750s to z1000s

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z750s to z1000s

This is a discussion on z750s to z1000s within the Z1K/Z750 Performance Upgrades forums, part of the Kawasaki Z1000, Ninja 1000, Z800, Z750 & Z-750S category; i love my z750s but the torque is a bit boring. i dont need anymore top speed after looking at the threads on here decided ...

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Thread: z750s to z1000s

  1. #1
    Up-And Comer monty9120's Avatar
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    z750s to z1000s

    i love my z750s but the torque is a bit boring. i dont need anymore top speed

    after looking at the threads on here decided to do the conversion myself

    as you may be aware the z1000 didnt come in a z1000s version so this will be quite unique. plus i like the bike

    plans are to fit a full z1000 engine rather then swapping pistons out etc.

    i will put any snags on here too

    plans are
    -z1000 engine
    -z1000 throttle bodies and injectors
    - original z750 exhaust with fuel end can

    taking things apart is pretty simple all plugs are different. so makes it easier. the airbox doesnt come out which is a pita

    getting the new engine back in is the biggest issue lining up the mounts


    IMG_3166.JPGIMG_5359.JPGIMG_5362.JPGIMG_5364.JPG

    i have come across a few snags.
    -the z1000 has an oil cooler and i dont know what to do with the pipes from the oil filter area
    - i was hoping to fit my 750 front sprocket but the gearbox outter doesnt have as much teeth as the z750 gearbox has. this means i cant bolt the sprocket up

    has anyone got any tips for the above

  2. #2
    Up-And Comer monty9120's Avatar
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    IMG_5371.JPGIMG_5372.JPGIMG_5373.JPG

    looking at the front sprocket size. the following shows the z750 sprocket is much thicker thats why its not worked

    obviously a z1000 has a different chain a 525
    so i had to look for a 15 tooth front sprocket (same size as my original) with the same measurements for a 520 chain

    seems like a gpz400 may be the answer. will try and see.

  3. #3
    Supreme Being twowheeladdict's Avatar
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    You are doing this outside in the garden? That is quite an undertaking. What will the weight difference be when all finished? Will all the other components of the bike handle the increased power? weight?
    Skill is what keeps you on two wheels.

    Situational awareness combined with skill is what keeps you out of harm's way.

    ATGATT combined with Situational Awareness and Skill means you might live to ride another day when that deer runs into your bike or that drunk blows through that stop sign.

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  5. #4
    Up-And Comer monty9120's Avatar
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    I did some of it on my drive and some in my garage when it rained

    The engine isn't too heavy just hard to navigate the engine in on its own

    Time will tell on brakes etc loads have done the piston swap on a z750 so effectively the same thing

  6. #5
    Rising Star PerryG's Avatar
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    Z750 engine is likely heavier the pistons, valves and clutch would be the only parts that'd be lighter, offset by more meat around them <---(thicker liners) and around the smaller valves, smaller combustion chamber too, none of this is filled in with air so the liners for instance are gonna add weight to the engine. There won't be enough weight difference between the 2 to notice but you will notice the power difference.
    2007 Z750s, 10 zx6 rear shock/linkage, 10 zx6 forks/brakes, HEL front/rear brake lines, Pazzo shorty levers, Dynojet pcv 17-050, 06 Z1000 clutch with Barnett carbon fibre friction discs, steels and springs, and 08 cover, Parts Unlimited 16 tooth front, Supersprox stealth 46 tooth rear sprockets with 114 link RK chain, heated grips (unsure of the manufacturer), bar risers from twisted throttle, 11 ninja 1000 mirrors, MRA touring windscreen, Corbin gunfighter seat.

  7. #6
    Rising Star PerryG's Avatar
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    At the very bottom of this page before clicking on this post the "er6 sprocket on a z750s" post has an entry by me about possible, what I think are practical gearing options that you may find informative about your sprocket conundrum. I don't know how to copy a link and put it in this post. Sorry about that
    2007 Z750s, 10 zx6 rear shock/linkage, 10 zx6 forks/brakes, HEL front/rear brake lines, Pazzo shorty levers, Dynojet pcv 17-050, 06 Z1000 clutch with Barnett carbon fibre friction discs, steels and springs, and 08 cover, Parts Unlimited 16 tooth front, Supersprox stealth 46 tooth rear sprockets with 114 link RK chain, heated grips (unsure of the manufacturer), bar risers from twisted throttle, 11 ninja 1000 mirrors, MRA touring windscreen, Corbin gunfighter seat.

  8. #7
    Up-And Comer monty9120's Avatar
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    Thanks. I have ordered the one above if not i will try your suggestion

    Worst case I'll buy a whole z1000 sprocket set

  9. #8
    Up-And Comer monty9120's Avatar
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    some more updates.

    - the z1000 throttle bodies came today. what a pig to fit in the gap lol. theres just no room finally got them in

    - plugged everything in. all plugs are different. i did take pictures as it was taking things apart (this helps alot)

    - had lots of leaking radiator pipes. turns out the clips i brought werent up to the job. all replaced

    - bolt to hold gear selector onto the gearbox broke. so had to drill that out

    - fitted z750 downpipes and exhaust

    still waiting on the front sprocket but everythings ready to rock and roll

    Attachment 110665
    Attachment 110665Attachment 110673


  10. #9
    Up-And Comer monty9120's Avatar
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    some more updates.

    - the z1000 throttle bodies came today. what a pig to fit in the gap lol. theres just no room finally got them in

    - plugged everything in. all plugs are different. i did take pictures as it was taking things apart (this helps alot)

    - had lots of leaking radiator pipes. turns out the clips i brought werent up to the job. all replaced

    - bolt to hold gear selector onto the gearbox broke. so had to drill that out

    - fitted z750 downpipes and exhaust

    still waiting on the front sprocket but everythings ready to rock and roll



    IMG_5412.JPG
    IMG_5404.JPG

  11. #10
    Up-And Comer monty9120's Avatar
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  12. #11
    Up-And Comer monty9120's Avatar
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    Finally had the bike running and moving today

    The front sprocket seems to be ok and fits well

    Trouble is at first I thought the front and back sprocket were slightly out of alignment

    A couple of questions is the z750 rear wheel and z1000 wheel the same

    Does anyone know what the thickness of the rear sprocket on a z750 and 1000 is

    Looking on eBay they show the same so am I worrying over nothing

  13. #12
    Up-And Comer saganb85's Avatar
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    Sprocket bolt pattern is the same but 750 is a 520 and 1000 is a 525. Run the 1000 width if you don't want to go through chains I'm running 15/46 can't make a 520 chain last 10k miles on my 750/1000.

  14. #13
    Up-And Comer monty9120's Avatar
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    Do you have a 1000 engine or just the bits on a z750 lump

    I'm aware I'm doing this a different way to others that's why I'm posting any snags i hit

    On meaauring the front sprocket on the old and new engine seems the front on the 1000 is about 2mm to the left

    As it's on a shaft and you can't do anything with that

    Possibilities are
    Move rear sprocket out 2mm (if possible)
    Change to a z1000 sprocket set

    Now that brings on other issues. Does the z1000 wheel have the same dimensions as the z750 wheel

    If not I could buy a sprocket set and it will still be out by 2mm

    Just so your aware having a 1000 engine is bloody awesome lol

    From the pick you can see the new front pulley a little rubbing

    As close as you like but not quite there
    Attached Images Attached Images

  15. #14
    Up-And Comer saganb85's Avatar
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    750 lump I know the stock 750 sprocket was offset and the aftermarket just free float on the shaft the parts numbers are the same so shouldn't have an issue with aftermarket.

  16. #15
    Up-And Comer monty9120's Avatar
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    its a 1000 lump so its slightly differenct. i will get a laser and see. have spaced the rear sprocket about 2mm. its not quite there so need to adjust when i get some time

    the actual engine runs well. will dyno it to see if the downpipes and ecu are restricting it

    its quicker but not the major jump i was expecting

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