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Due to water damage I'm in need of a crankshaft. (2 bad bearings) 1979 to 1980 1000 any help would be appreciated

I have one good one off a 78...I believe they all fit the basic KZ 1000 models until you get to the J models.  $150 plus shipping from 98110  Let me know.

The 79 and 80 are the MK2 engine, and have a different number of teeth on the crankshaft cam chain sprocket.  I believe you could use a 73-78 crank in a 79/80, but you'd need to change the camshaft sprockets to the 73-78 sprockets.

Very true on the change in 79, totally spaced on that....my bad, thank you DOHC

is the chain the same?

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is the chain the same?

The cam chains are not the same, unfortunately.  The chain used on pre-MkII motors (Z1, KZ900, early KZ1000) having the 15t crank center pin use 122 links.  The MkII chain is 124 links.  Hope this helps.

Mike

I read somewhere that the rotor for the stator-generator is different due to the crank being larger and the taper is different is this true?

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The 79 and 80 are the MK2 engine, and have a different number of teeth on the crankshaft cam chain sprocket.  I believe you could use a 73-78 crank in a 79/80, but you'd need to change the camshaft sprockets to the 73-78 sprockets.not all 79/80 KZ1000 were MKII LTD Models used the 122L cam chain same as older Models but 79/80 used different taper on end for stator than 77-78 KZ1000 I may have 79/80 LTD 1000 crank 

This may prove to be a bigger pain than I thought. The dynamo charging systems are different, you would have to get an earlier side cover and complete rotor assembly. 77-78 uses a magnetic rotor dealio fixed to the crank and the armature is fixed to the side cover....while on the later 79-80 Mk2 motors the dynamo charging system is reversed.  I would totally understand if you didn't want the crank, my apologies

wrote:

This may prove to be a bigger pain than I thought. The dynamo charging systems are different, you would have to get an earlier side cover and complete rotor assembly. 77-78 uses a magnetic rotor dealio fixed to the crank and the armature is fixed to the side cover....while on the later 79-80 Mk2 motors the dynamo charging system is reversed.  I would totally understand if you didn't want the crank, my apologies

starting to look like a bit of a pita for sure
 

found one thanks guys