Search Results (Searched for: gs swing arm)
Drooz
Got a couple more pics to share. 
Here's another angle on the OW31 seat:
One of the issues with the OW31 "Large" is actually the size... it's a little big for some tanks. That's why I'm not going to use it here on the h2. The seat makes the tank look small.
However, I have some good news as today! I've located a tank for my KZ that I believe will go perfectly with this seat. It's from a 79 KZ1000 MkII ST. I love it because of it's "squared off" shape and because it's one of the largest capacity KZ tanks "out there". Score!! :laugh:
Pics when I get it in my hands.
Here's some more inspiration:
Love the clip-ons, front end and seat among other things. I think the swing arm would be a little long for my purposes, but i love the view from this angle.
Sweeeeet!! 
Here's another angle on the OW31 seat:
One of the issues with the OW31 "Large" is actually the size... it's a little big for some tanks. That's why I'm not going to use it here on the h2. The seat makes the tank look small.
However, I have some good news as today! I've located a tank for my KZ that I believe will go perfectly with this seat. It's from a 79 KZ1000 MkII ST. I love it because of it's "squared off" shape and because it's one of the largest capacity KZ tanks "out there".
Score!! :laugh:Pics when I get it in my hands.
Here's some more inspiration:
Love the clip-ons, front end and seat among other things. I think the swing arm would be a little long for my purposes, but i love the view from this angle.
Sweeeeet!! Replied by Drooz on topic '78 KZ-OW Project
30 Dec 2013 13:13
Drooz
531blackbanshee wrote: you are right about the general lust that bike inspires :evil: !
i can't wait to follow along.
leon
Yessir!
I hope you're a patient man... it's gonna be slow going. 
Nice z1r's btw! Cool blog as well.
One of the things I dislike about some of the mono conversions I see, are the extended swing arms. I "get" that some really want the dragbike look, but I'm unwilling to go with a longer swing arm just because most of them are simply longer than the KZ. Considering what it will do to the handling, I want to find something that will "fill the bill" but maintain a stock or close-to-stock swing arm/wheelbase length.
When I went to a mono set up on the '74 h2 750, I found a '86 FZ600 swing arm was a perfect fit for the frame pivot point and for swing arm length. I suppose I could go the same route here, but I'd like to consider other options since I have time.
Any suggestions? :whistle:
front fork/swingarm swap was created by 78KZkid
29 Dec 2013 08:27
78KZkid
Hey guys, I haven't been on in a while
I bought gsxr600 front forks and a gsxr750 swingarm from StreetfighterKZ and I got the forks mounted up for now but I'm still waiting on the new bearing set which should be here in s couple of days
rims and tires are going to be special ordered because I want wire and I can't stand the gsxr wheels
also waiting on the rear shock then ill start on cutting up the bike to make the mounts for the mono shock
Also started on a little anger management for the tank but that's a new topic
Here's some pics let me know what you guys think
I bought gsxr600 front forks and a gsxr750 swingarm from StreetfighterKZ and I got the forks mounted up for now but I'm still waiting on the new bearing set which should be here in s couple of days
rims and tires are going to be special ordered because I want wire and I can't stand the gsxr wheels
also waiting on the rear shock then ill start on cutting up the bike to make the mounts for the mono shock
Also started on a little anger management for the tank but that's a new topic
Here's some pics let me know what you guys think
77 KZ1000 crank suggestion was created by tomsbadkz
27 Dec 2013 15:24
tomsbadkz
I'm doing a 1327cc KZ motor. It's going to be an occasional show off ride. I have the 83-84 GPZ1100 head that Larry Cavanaugh is going to do up for me with a little oversized intake and exhaust valves, kibblewhite springs and Star titanium retainers. Web Cams 435, MTC 10.5 to 1 pistons. I am also setting it up for 300 tire with jackshaft swingarm. I know a guy with a KZ1000 crank that has the Falicon 16 tooth center and has been welded and thrust bearing installed. The price seems pretty good. Anybody think this is the crank I need?
Replied by tk11b40 on topic 1975 KZ 900 , ZRX Swingarm, 89 GSXR front end
27 Dec 2013 01:51
tk11b40
While I am waiting for parts and cash..
Here is a little video my buddy Dave made of a ride we did last spring on the Playa in Nevada...
Here is a little video my buddy Dave made of a ride we did last spring on the Playa in Nevada...
Replied by saxjonz on topic 1980 Z1R Recently Purchased
17 Dec 2013 17:15
saxjonz
Well, I have a 79 and an 80 LTD which I feel handle equally well. Never had any issues of quick steering but on windy days trying to head in to corners just about all my nerves and balls were needed on the 79. I know I had a worn steering bearing and possibly swing arm bearings worn that were replaced. But on my 80 I could feel the forks flex after I rode my rexes with reckless abandon. After riding the Rex I realized just how much my kz's were flexing around aggressive corners. Now those bikes feel like they could just fall down going around corners. For big as those pigs are they handle with effortless aplomb in comparison to my LTD's. I have yet to ride my Z1r. It's killing me now that I had one opportunity with the weather and was advised against it and figured since it was new to me it might not be a good idea to ride it for three hours not knowing the bike and if there was any issues that needed tending to.
I remember that I would go out on a 3-400 mile day and would only feel comfortable taking hard corners after a few beers and the WFO throttle approach to corners. I guess throttling through the corners really made the bike set and stay the line as opposed to the normal way of riding.
I remember that I would go out on a 3-400 mile day and would only feel comfortable taking hard corners after a few beers and the WFO throttle approach to corners. I guess throttling through the corners really made the bike set and stay the line as opposed to the normal way of riding.
dohc wrote:531blackbanshee wrote: i can tell you that my 1980 z1r is very noticeably heavier to stand up off the kickstand and push around the shop than any of the 78 z1r's that i own.
The claimed dry weight went up by 9 lbs, (542 to 551), and the curb weight went up by 11 (bigger tank?).
I'm surprised this small change (1.7%) would make the bike feel noticeably heavier, but maybe the weight/CG moved higher. The bigger tank would certainly move it up (assuming the tank was full).
I can say that the stubby little lever arm on the '78 center stand makes the bike insanely difficult to get on the stand. I'm assuming the longer arm on the '80 helped some with this.
Here is my question for the '80 owners. The low speed handling of the '78 is spooky, say when turning while slowly pulling out of a parking space or driveway. It often feels like it's going to fall flat on it's side, as if the steering head were a bit stuck and the front end wasn't tracking with the turn. Both of the '78 Z1Rs I've ridden felt exactly the same in this respect (even with new steering head bearings). Does the '80 also feel this way? Did all of the Z1/1000s feel this way?
Replied by saxjonz on topic 1980 Z1R Recently Purchased
17 Dec 2013 17:00
saxjonz
Wow, that is exactly the thoughts I had going through my mind taken to the next level. THANKS.
This helps me quite a bit.
This helps me quite a bit.
dohc wrote:saxjonz wrote: I want to learn EVERYTHING about this bike. I have fallen for it in a hard way.
I know how you feel... but let me just start off by saying you asked for this....
Before I start, if you really want to know everything buy this book:
www.amazon.com/Kawasaki-Z1000-Z1-R-Crowo...assics/dp/184797144X
First, production numbers: Claimed '78 production is 17,392 complete bikes, while '80 is 3,308 bikes.
As for the frame, the steering head angle is given as 26 deg. for both '78 and '80, but the trail increased from 85mm to 101mm. My guess is the basic frame geometry was not changed, with the extra trail coming from the larger front wheel and a different offset in the triple clamps (unique part numbers for the clamps). More trail would make the bike steer more slowly, which should feel more stable at speed.
Marketing claimed the frame was updated to use double wall tubing, but the '78 has external bracing on the down tubes that I would call double wall tubing so I don't know what they added to the '80. Anyone else know?
The marketing also claims they shortened the swingarm by 1/2". However, they changed the drive sprockets from 15/33 to 15/35, but with the same chain length (92). Based on a web calculator, this rear sprocket change would shorten the wheelbase by 0.4", so maybe that's where this figure came from.
The springs in the rear shocks were softened (single rate spring instead of dual-rate). Apparently people complained that the 78 was too stiff. It looks like they also changed the front forks to use 10W oil instead of 15W, but it looks like they also changed the internal damping rod so the net effect is not exactly clear. But it looks like the goal was to make the ride softer overall.
The brake rotors got smaller in 80 (290mm to 250mm) with a new irregular drill pattern (to reduce noise apparently), but the front caliper pistons are larger diameter (giving more mechanical advantage) and the pistons have heat insulators so they could install sintered metal pads. The rear caliper also got insulated pistons and sintered pads. Claimed braking distance was reduced from 12.5m to 11m at a speed of 50 kph.
The rear master cylinder was changed to have a remote reservoir, along with the brake pedal and pushrod. The new MC still has the same piston diameter though. I believe the 80 Z1R had the same rear master cylinder and pedal as all other 79 and 80 KZ1000 models, while the '78 Z1R rear MC/pedal is unique.
Other details:
-Mk2 engine (many changes)
-Larger fuel tank, new fill cap
-revised seat cover (puffy cross bands)
-different front fender due to larger front wheel
-USA speedo max = 85
-4-1 exhaust changed to 4-2
-new side cover badge
-accelerator pump added to carbs (still 28mm)
-transistorized ignition replaced points
-totally different wiring harness (no central connector panel)
And now I'm really wasting your time.... the center stand lever was changed due to the left side exhaust. The headlight mounting ring was changed (no idea why). The fork ears were beefed up (even though the part number didn't change) by filling in solid what had been a circular cutout.
I'll stop now.
DOHC
saxjonz wrote: I want to learn EVERYTHING about this bike. I have fallen for it in a hard way.
I know how you feel... but let me just start off by saying you asked for this....
Before I start, if you really want to know everything buy this book:
www.amazon.com/Kawasaki-Z1000-Z1-R-Crowo...assics/dp/184797144X
First, production numbers: Claimed '78 production is 17,392 complete bikes, while '80 is 3,308 bikes.
As for the frame, the steering head angle is given as 26 deg. for both '78 and '80, but the trail increased from 85mm to 101mm. My guess is the basic frame geometry was not changed, with the extra trail coming from the larger front wheel and a different offset in the triple clamps (unique part numbers for the clamps). More trail would make the bike steer more slowly, which should feel more stable at speed.
Marketing claimed the frame was updated to use double wall tubing, but the '78 has external bracing on the down tubes that I would call double wall tubing so I don't know what they added to the '80. Anyone else know?
The marketing also claims they shortened the swingarm by 1/2". However, they changed the drive sprockets from 15/33 to 15/35, but with the same chain length (92). Based on a web calculator, this rear sprocket change would shorten the wheelbase by 0.4", so maybe that's where this figure came from.
The springs in the rear shocks were softened (single rate spring instead of dual-rate). Apparently people complained that the 78 was too stiff. It looks like they also changed the front forks to use 10W oil instead of 15W, but it looks like they also changed the internal damping rod so the net effect is not exactly clear. But it looks like the goal was to make the ride softer overall.
The brake rotors got smaller in 80 (290mm to 250mm) with a new irregular drill pattern (to reduce noise apparently), but the front caliper pistons are larger diameter (giving more mechanical advantage) and the pistons have heat insulators so they could install sintered metal pads. The rear caliper also got insulated pistons and sintered pads. Claimed braking distance was reduced from 12.5m to 11m at a speed of 50 kph.
The rear master cylinder was changed to have a remote reservoir, along with the brake pedal and pushrod. The new MC still has the same piston diameter though. I believe the 80 Z1R had the same rear master cylinder and pedal as all other 79 and 80 KZ1000 models, while the '78 Z1R rear MC/pedal is unique.
Other details:
-Mk2 engine (many changes)
-Larger fuel tank, new fill cap
-revised seat cover (puffy cross bands)
-different front fender due to larger front wheel
-USA speedo max = 85
-4-1 exhaust changed to 4-2
-new side cover badge
-accelerator pump added to carbs (still 28mm)
-transistorized ignition replaced points
-totally different wiring harness (no central connector panel)
And now I'm really wasting your time.... the center stand lever was changed due to the left side exhaust. The headlight mounting ring was changed (no idea why). The fork ears were beefed up (even though the part number didn't change) by filling in solid what had been a circular cutout.
I'll stop now.
Replied by kaw-a-holic on topic Phoenix Fighter
16 Dec 2013 12:28
kaw-a-holic
StreetfighterKz wrote: Sorry to see your bike in such sad shape. Just in case you didn't know, the front end is either a Gsxr750W ('94-95) or a Gsxr1100 which stopped being made in 1998. And the swingarm is a Gs1100E item with a Gsxr7500/1100 rim.
Later, Doug
Doug thank you for the information I did not know I don't know how you know all that information just by looking at them. I bought the front and the two wheels from a salvage yard was on a drag bike project. they told me they were 99 forks I didn't know how to identify them. the swingarm I knew about I bought that separately off of ebay a few months ago. Again thanks for the information though. unfortunately that takes me out of the AllBalls bearing swap opportunity.
Replied by StreetfighterKz on topic Phoenix Fighter
16 Dec 2013 07:11
StreetfighterKz
Sorry to see your bike in such sad shape. Just in case you didn't know, the front end is either a Gsxr750W ('94-95) or a Gsxr1100 which stopped being made in 1998. And the swingarm is a Gs1100E item with a Gsxr7500/1100 rim.
Later, Doug
Later, Doug
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