New confused guy...

Hi guys!
I figured i should probably join this forum since i have a lot of questions and not a lot of people nearby to answer them. I'm slightly confused as to which model/year bike i have. I just bought it on Saturday and am diving headfirst into getting my first bike running and roadworthy. How can i identify my bike by the VIN? Vin number is KZT00B500731 and the date of manufacture of 2/77. I'm starting to believe this bike has different carbs on it, or it's not a 900 like i was told. Help please! Thanks in advance!

With that production date, I would think it's a KZ1000. Do you have any pictures?

vin on fr4ame?? vin on enginne??? look in front of lowwer cylinder 900cc will be 903 kz1000 will say 1015cc prob. an early 77 kz 1000. Z1Enterprises has a ID page on their site with a vin its easy.

[img][URL=http://s34.photobucket.com/user/cpm0487/media/WP_20130427_0011_zps46f828c3.jpg.html][IMG]http://i34.photobucket.com/albums/d114/cpm0487/WP_20130427_0011_zps46f828c3.jpg[/img][/URL][/img]Sure thing, here it is!
[img]http://http://i34.photobucket.com/albums/d114/cpm0487/WP_20130427_0011_zps46f828c3.jpg[/img]

Kinda looks like a 1000ltd with a KZ900 gas tank. As mentioned vin on frame and engine will tell you a lot.

The number on the motor is Z1E21754...i'm starting to think this bike was cobbled together...

Sounds like a 900 motor. Does it have 903cc stamped in it?

Cmac12587 wrote: ...Vin number is KZT00B500731 and the date of manufacture of 2/77....

'77 KZ1000-B1:LTD Frame No. Range KZTOOB-500001 - 507530 (includes KZT00B500731)

Cmac12587 wrote: The number on the motor is Z1E21754....

Might the engine number actually be Z1E021754 instead of Z1E21754?
'74 Z1-A 900 Engine No. Range Z1E020001 - 047497 (includes Z1E021754)

Good Fortune!

That's exactly what I was beginning to believe.

Cmac12587 wrote: ...starting to believe this bike has different carbs on it, or it's not a 900 like i was told....

Needing a better closer pic of the carbs.

Meanwhile, there's some excellent carb identification info at Z1 Enterprises.
Click here > www.z1enterprises.com/Z1CarbGuide.aspx

Good Fortune!

[img][URL=http://s34.photobucket.com/user/cpm0487/media/WP_20130429_0041_zpsa2bee2df.jpg.html][IMG]http://i34.photobucket.com/albums/d114/cpm0487/WP_20130429_0041_zpsa2bee2df.jpg[/img][/URL][/img]

Cmac12587 wrote: [img][URL=http://s34.photobucket.com/user/cpm0487/media/WP_20130429_0041_zpsa2bee2df.jpg.html][IMG]http://i34.photobucket.com/albums/d114/cpm0487/WP_20130429_0041_zpsa2bee2df.jpg[/img][/URL][/img]

Look like the carbs could be stock Mikuni 28mm carbs for '74 Z1-A 900.

The carbs with three screws holding down the caps (covers) were introduced on the 1976 KZ900 models.

Good Fortune!