Camshaft Identification

More
27 Mar 2013 15:23 #579123 by geohaydook1
Camshaft Identification was created by geohaydook1
When I got my 750e it came with an extra head, cams, and cylinders. The p.o. said they were from a gpz, but I have come to realize he was full of %$#$&. How can I identify this stuff?

1980 KZ750e
1981 KZ650 csr (fate undecided)

Please Log in or Create an account to join the conversation.

More
27 Mar 2013 19:33 #579152 by Nebr_Rex
Replied by Nebr_Rex on topic Camshaft Identification
Measure base circle and the nose with a caliper or micrometer to find lift.(narrow diameter of the cam lobe and the wide diameter of the lobe to determine valve lift..)
List both measurements in thousands and we'll go from there.
Some cams are marked differently and that may need to be addressed later.

2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


.

Please Log in or Create an account to join the conversation.

  • 4TheKZ1000
  • Visitor
27 Mar 2013 19:59 #579158 by 4TheKZ1000

Please Log in or Create an account to join the conversation.

More
11 Apr 2013 21:20 #581904 by geohaydook1
Replied by geohaydook1 on topic Camshaft Identification
Thanks. I'm waiting for my digital caliper to come in so I can do the measurements.

1980 KZ750e
1981 KZ650 csr (fate undecided)

Please Log in or Create an account to join the conversation.

  • WABBMW
  • Offline
  • User
  • Let The Good Times Roll !
More
12 Apr 2013 12:19 #581979 by WABBMW
Replied by WABBMW on topic Camshaft Identification
I've read that the GPz cams have two grooves cast into them, fairly close to the center where the sprocket bolts on. That was for a GPz 550. I don't know if the same is true for a GPz 750.

I have also wondered if the 550 and 750 cams might interchange. Anybody know?

Bill Baker
Houston, Texas
1982 KZ650 CSR
2008 Yamaha FZ1
2006 Yamaha FZ1
1977 Honda Supersport 750 four (sold)
1984 Honda Nighthawk 650 (sold)

Please Log in or Create an account to join the conversation.

More
12 Apr 2013 13:29 - 12 Apr 2013 13:30 #581989 by steell
Replied by steell on topic Camshaft Identification
83-85 GPz750 has no provision for a tach drive on the head, and no tach drive gear on the exhaust cam.
83-85 GPz750 cylinder head and block have angled corners rather than the round corners on the KZ750.
83-85 GPz750 cylinder block lacks provisions for the roller chain components of the KZ650, and the head does not have the four bolt holes on top for the KZ650 chain idler gear.

There are pics here somewhere of the two different heads.

No, the 750 cams will not fit the 550.

KD9JUR
Last edit: 12 Apr 2013 13:30 by steell.

Please Log in or Create an account to join the conversation.

Powered by Kunena Forum