Cam options for a 650?

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05 Jun 2008 13:11 #218134 by Tyler
Cam options for a 650? was created by Tyler
Other than original equipment what cam options are out there for the 650's. Can you run gpz cams or something like that, or are there aftermarket cams available? I had Delta cams do a regrind on my subaru, anyone have factory cam regrouns in a new profile? It would be cheap if anything.
If I knew what I was doing all the time life wouldn't be any fun.

'80 KZ650 E 700cc, dyna ignition and coils, frame up restoration, daily driver
'81 KZ1300 A3 full restoration, custom big bore pistons, 1400cc 6 cylinder super bike
"77 KZ650 B1 - Barn Find, work in progeress
"74 Yamaha DT 400 Enduro

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05 Jun 2008 14:37 #218158 by kxhonda
Replied by kxhonda on topic Cam options for a 650?
Check out this thread from not too long ago, kzrider.com/index.php?option=com_kunena&...11355&catid=2#211355

Not too many people have run aftermarket grinds from web or megacycle in a 650 though, most people just run gpz750 cams even though you lose you tach.
1977 Kz650B1 #576th made.

Warsaw, In

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05 Jun 2008 15:56 #218189 by Tyler
Replied by Tyler on topic Cam options for a 650?
Thanks for the link, lots of info there... Hmmm looks like I have my homework assignment for the weekend.

I am planning on a 700 Wiesco overbore kit.
If I knew what I was doing all the time life wouldn't be any fun.

'80 KZ650 E 700cc, dyna ignition and coils, frame up restoration, daily driver
'81 KZ1300 A3 full restoration, custom big bore pistons, 1400cc 6 cylinder super bike
"77 KZ650 B1 - Barn Find, work in progeress
"74 Yamaha DT 400 Enduro

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05 Jun 2008 17:31 #218206 by steell
Replied by steell on topic Cam options for a 650?
Tyler wrote:

Thanks for the link, lots of info there... Hmmm looks like I have my homework assignment for the weekend.

I am planning on a 700 Wiesco overbore kit.


Isn't an 810 kit about the same price? :)
KD9JUR

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05 Jun 2008 18:25 #218215 by anarki650
Replied by anarki650 on topic Cam options for a 650?
Can you fit an 810 kit into 650 jugs? Or do you need to find those ever ellusive 1980 kz750 4 cylinder jugs to swap in and then punch over?
09 Kawasaki ER6n
77 kz650b1 cafe rebirth project
"Being shot out of a cannon will always be better than being squeezed out of a tube, that's why God made fast motorcycles..."
Dr. Hunter S. Thompson
Omaha NE

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05 Jun 2008 19:40 #218228 by jordan
Replied by jordan on topic Cam options for a 650?
ooh, just sold a pair of 1980 750 cylinders. Only went for $50, I was kinda disappointed.
KZ810 streetfighter kz/gpz/gsxr
1983 gs1100e
1979 KZ 1000 1428 dragbike project
1974 kawasaki H1 500 sold :(
1972 Kawasaki s2 350-parted on ebay :(
1973 Kawasaki s2 350-parted on ebay :(
1982 kz750(sold)
1978 kz650 hardtail(sold)
1975 honda xl250-sold
1971 yamaha R5-sold
1982 yamaha xs400

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05 Jun 2008 20:06 #218234 by kxhonda
Replied by kxhonda on topic Cam options for a 650?
Some 81 cylinders have provisions for the rollers chain also, but not all. Prob a mid year change. Mine came from an 81.
1977 Kz650B1 #576th made.

Warsaw, In

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05 Jun 2008 20:34 #218243 by Voodoosoup
Replied by Voodoosoup on topic Cam options for a 650?
anarki650 wrote:

Can you fit an 810 kit into 650 jugs? Or do you need to find those ever ellusive 1980 kz750 4 cylinder jugs to swap in and then punch over?


I believe I read on here that you just need the 750 sleeves. You can have the original sleeves pressed out and replaced with the 750 sleeves.

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05 Jun 2008 23:30 #218279 by Tyler
Replied by Tyler on topic Cam options for a 650?
That seems odd. If the 750 sleeve will press in it has the same O.D. so that means it would have the same maximum bore diameter as a 650 sleeve.... Unless yuo have to cut the cylinders to press in the 750 sleeve. May be cheaper to get a 750 cylinder block.
If I knew what I was doing all the time life wouldn't be any fun.

'80 KZ650 E 700cc, dyna ignition and coils, frame up restoration, daily driver
'81 KZ1300 A3 full restoration, custom big bore pistons, 1400cc 6 cylinder super bike
"77 KZ650 B1 - Barn Find, work in progeress
"74 Yamaha DT 400 Enduro

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

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