KZ 1100 in a 1000 frame?

  • autovon
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KZ 1100 in a 1000 frame?

03 Aug 2022 11:14
#871608
Hello all, I just bought a 1979 KZ1000ST (shaft) and I have the option of buying a 1981 KZ1100ST (shaft) motor. Would this be a direct swap, or would motor mounts have to be changed? I don’t have eyes on either item, so I’m wondering if anyone has made this swap before. I searched and couldn’t find anything. TIA
1979 KZ1000ST (basket case)
1980 KZ750E

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  • zed1015
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Re: KZ 1100 in a 1000 frame?

03 Aug 2022 12:02
#871612
Motor mounts will need altering 
The newer engine is slightly shorter.
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  • kzstreetfighter71
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Re: KZ 1100 in a 1000 frame?

04 Aug 2022 12:30 - 04 Aug 2022 12:30
#871684
On a chain drive engine swap it would mean a few things changed/altered but a shaft drive you might be looking at a few hurdles down the line like shaft length and alignment, never heard of anyone swapping a MK2 shaft for a "J" type..you would be in open water here mate. What about rebuilding the engine you have? Im sure the expense of buying a new engine would be about the same as rebuilding the one you have.
06 Gsf 1200 bandit, 08 Triumph tiger 1010
05 Yam xv1700 , 02 Hon shadow 1100
1975 Z1 (currently working on)
1977 Z1000 ( running and in storage)
1978 Z1000 (currently working on)
1978 Z1r "skinny tank" (currently working on)
1978 Z1r "fat tank (gathering parts)
1979 z1000st (currently working on)
Last edit: 04 Aug 2022 12:30 by kzstreetfighter71.

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Re: KZ 1100 in a 1000 frame?

06 Aug 2022 09:07
#871764
I appreciate the response. I likely will rebuild the motor, just wanted to explore options.

kzstreetfighter71 post=871684On a chain drive engine swap it would mean a few things changed/altered but a shaft drive you might be looking at a few hurdles down the line like shaft length and alignment, never heard of anyone swapping a MK2 shaft for a "J" type..you would be in open water here mate. What about rebuilding the engine you have? Im sure the expense of buying a new engine would be about the same as rebuilding the one you have.
1979 KZ1000ST (basket case)
1980 KZ750E

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  • kzstreetfighter71
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Re: KZ 1100 in a 1000 frame?

06 Aug 2022 11:18
#871770
Good choice, Kz1000 Mk2 engine is a way cooler option regardless, im in the middle of a shaft to chain conversion build right now, its an option that could be taken down the road.
06 Gsf 1200 bandit, 08 Triumph tiger 1010
05 Yam xv1700 , 02 Hon shadow 1100
1975 Z1 (currently working on)
1977 Z1000 ( running and in storage)
1978 Z1000 (currently working on)
1978 Z1r "skinny tank" (currently working on)
1978 Z1r "fat tank (gathering parts)
1979 z1000st (currently working on)

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