900 engine in 650 chassisconversion

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07 Mar 2010 14:32 #351790 by timebomb33
900 engine in 650 chassisconversion was created by timebomb33
i just got a kz650b chassis that has a mono shock conversion started. it has a clean title and i was thinking of stuffing a 900 or 1000 into it as i don't have a lot of 650 stuff in fact none. has anybody done this swap on here i remember seeing one that had been done but i can not remember where. with this frame and i got parts of what appears to me to be all the body work and engine from a gpz 750 and a 650, that engine that looks like it's been outside for a few years and i also got a xs650 engine thrown in on the deal plus a bunch of other goodies for 250.00 dollars so i might have a bunch of stuff for sale soon.

1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE

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07 Mar 2010 15:35 #351797 by Mcdroid
Replied by Mcdroid on topic 900 engine in 650 chassisconversion
Yeah, I've seen that bike too and I think photos are buried somewhere on this site...I seem to recall that one of the issues with squeezing a 900/1000 into a 650 frame was that you couldn't change valve shims without pulling the motor...

Michael
Victoria, Texas

1982 GPz750
1977 KZ1000A
1978 KZ1000A
1982 GPz1100
1975 Z2A

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07 Mar 2010 16:05 #351805 by timebomb33
Replied by timebomb33 on topic 900 engine in 650 chassisconversion
yes it had crossed my mine that shim changes might be an issue i have a drag chassis that originaly had an alcohol burning gpz 750 motor in it then by the time i got it had been blown up and then a converted kz1100 shaft drive motor was installed so its really hard to tell what they had done differently to get the motor in it. the chassis was a completly built frame not a conversion and i did have to remove the enginme to do any repairs so it kind of sucked. so i'm in the process of trying to figure out what i'll have to do to lift the backbone up about an 1 1/2" so ican remove the head and valve cover and give it about 5 to 7 degrees more rake for pipe clearance or just say the hell with it. this little 650 chassis on the othwer hand is pretty cool it has a zx 7 from the looks of it swingarm, shock and linkage so i'd really like to stuff some power into it. by the way i never realized just how light kz650 and gpz750's are compared to the big kZ's what a difference.

1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE

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07 Mar 2010 16:47 #351818 by Kawickrice
Replied by Kawickrice on topic 900 engine in 650 chassisconversion
That sounds like a fun project. The 650's are like a toy after riding a 900/1000. Now stuff a monster motor and it would be a blast to ride. Reminds me of my 86 S-10 with a four bolt 350 crammed in it. What a blast to drive that truck was. It would suck to pull the motor for top end maintenence. I remember a thread on this topic and some one chimed in that you could pull the valve cover without removing the motor but I find that hard to believe. Dont let that stop you from doing the build, I'm sure you will figure something out.

73 Kawasaki Z1
07 HD CVO Ultra Classic
82 Suzuki GS 1100
74 Yamaha RD 350 (My two stroke toy)
77 Kawasaki KZ 650B-1 (My putt around bike)
80 Indian Moped (My American Iron)
1
Long Gone
75 Suzuki GT550
74 GT 380
79 RD 400 Daytona Special
72 Honda CL 175
74 Honda QA 50
Tampa FL

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07 Mar 2010 19:52 #351867 by School Teacher
Replied by School Teacher on topic 900 engine in 650 chassisconversion
could you figure out a two piece valve cover? get a hacksaw jim:laugh:

1976 kz900 in parts but will be going some day soon
1980 kz1000G1
1976 kz900 parts bike
1979 kz1000 shaftie parts bike
1978 kz1000 33mm smoothies 1075 kit
Troutdale Oregon USA

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08 Mar 2010 02:12 #351911 by Old Man Rock
Replied by Old Man Rock on topic 900 engine in 650 chassisconversion
Yeah, carve some valve covers out of that Oak/hickory wood you used on your timing chain idle dampners.... :blink: :laugh: :laugh: :laugh:

1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter

Phoenix, Az

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08 Mar 2010 05:51 #351935 by otakar
Replied by otakar on topic 900 engine in 650 chassisconversion
I would put a GPZ750 engine in it or a ZR750 in it it has more HP and is lighter.

74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000

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08 Mar 2010 06:09 - 08 Mar 2010 06:10 #351937 by Bluemeanie
Replied by Bluemeanie on topic 900 engine in 650 chassisconversion
Mcdroid wrote:

Yeah, I've seen that bike too and I think photos are buried somewhere on this site


I believe this is the photo in question... (Z1 in a 650 frame)


1980 KZ650F1, Bought new out the door for $2,162.98!
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Last edit: 08 Mar 2010 06:10 by Bluemeanie.

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08 Mar 2010 06:29 #351939 by Kawickrice
Replied by Kawickrice on topic 900 engine in 650 chassisconversion
Bluemeanie wrote:

Mcdroid wrote:

Yeah, I've seen that bike too and I think photos are buried somewhere on this site


I believe this is the photo in question... (Z1 in a 650 frame)


I bet thats one Nasty ride

73 Kawasaki Z1
07 HD CVO Ultra Classic
82 Suzuki GS 1100
74 Yamaha RD 350 (My two stroke toy)
77 Kawasaki KZ 650B-1 (My putt around bike)
80 Indian Moped (My American Iron)
1
Long Gone
75 Suzuki GT550
74 GT 380
79 RD 400 Daytona Special
72 Honda CL 175
74 Honda QA 50
Tampa FL

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08 Mar 2010 06:45 #351943 by Mcdroid
Replied by Mcdroid on topic 900 engine in 650 chassisconversion
Yep...that's the beauty I was thinking of...

Michael
Victoria, Texas

1982 GPz750
1977 KZ1000A
1978 KZ1000A
1982 GPz1100
1975 Z2A

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08 Mar 2010 07:12 #351947 by KawiConvert
Replied by KawiConvert on topic 900 engine in 650 chassisconversion
I remember something about splicing in some width to the frame to make it fit. If your going to put a 900 in there, wouldn't a 1000 fit just as well? Just thinking that it may be easier to find a 1000 engine to shoehorn in.

1978 KZ650 D1 ~ Carb jetting: 107.5 & 20 & 4th groove with pods and 4-1 Exhaust

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08 Mar 2010 08:33 #351962 by turboguzzi
Replied by turboguzzi on topic 900 engine in 650 chassisconversion
in the honda sohc4 forum there are people who make and install kits that let you take the lower upper tubes off, letting you lift the head if you want. its basically all about sawing off the lower tubes and welding special adapters which are bolted back with 8mm or 10mm bolts

Maybe it's an idea you could apply to your 650.

TG

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