Author Topic: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.  (Read 50361 times)

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Offline PeWe

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #500 on: October 17, 2020, 12:21:48 PM »
https://japan.webike.net/moto_news/latest-news/20200113-kawasaki-resale-cylinder-heads-for-z2-z1/

・Black: around 2200 USD
・Silver: around 2100 USD

It would be fine if they had option with ported ports and bigger valves.

Only one problem, I do not own a Z1 !! :(
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #501 on: October 17, 2020, 05:06:40 PM »
Thanks guys, yeah, Z1's aren't as prolific as CB750's. I think Kawasaki only built around 85,000 Z1's, compared to around 500,000 CB750's? Something like that, anyway. The good thing for me was that once I paid more money for a bare 1975 Z1-B frame than I paid for all of that K0 stuff including the frame, cases, wrinkle tank, oil tank, fender, forks, sidecovers etc etc) I had no problems finding a set of Z1-B cases in the US for not too much money, and because big Kawasaki's have dominated drag racing in the US until the Suzuki Hayabusa (and now the Kawasaki ZX14) pushed them into racing history, there is a lot of Z1 OEM and aftermarket go-fast parts going cheap in the US.

The head on my Z1 engine has been ported, with bigger valves etc, and with the high comp Moriwaki 1100cc pistons, welded and balanced crank, Mikuni 33mm smoothbore carbs, Dyna S ignition etc, should be making some good power, but I'm thinking about swapping in the other head and a set of wilder cams, the other head has a nice port job, bigger valves again (38mm inlet, 30mm exhaust) new APE H/D springs, under bucket shims etc, which will work well with some .425 lift cams. I've got to fix a busted fin though, which is why I didn't use it originally, but after getting raped by Ebay and the seller, it's mine, so I may as well use it. I'll have to try my hand at soldering a new piece in to replace the busted fin, then it should be good for some big BHP figures.

On the other hand, I've got a new Eagle welded and balanced crank for my GPZ1100 engine that I bought ages ago, along with those big arse cams, maybe a big bore kit (anywhere from 1200-1500cc is available for them) might be fun too. Too many choices guys, too little time. I better get off my arse and keep going, I'll shove the stock(? the cams don't look stock, but I haven't measured them yet) GPZ engine in the black bike and see how it goes, then decide what to do with it after that, once the Dyna 2000 arrives for the 1428 engine, I'll be keen to see how they compare.

Those new heads look good, and don't seem that expensive, considering what you get for your money. Not sure why they bothered though, there are plenty of good used heads still out there, as the Z1-Z1000 heads are pretty much identical. ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline dave500

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #502 on: October 17, 2020, 06:49:38 PM »
do you ever stop?

Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #503 on: October 17, 2020, 07:07:25 PM »
Ha ha, only to eat and sleep Dave, I don't really have any other interests. I'm sitting here watching Bathurst, but wishing I was outside cleaning the paint off the GPZ's cam and starter motor cover........ ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline scottly

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #504 on: October 17, 2020, 07:23:43 PM »
Well duh, move the TV into the shop area. ::)
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline 754

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #505 on: October 17, 2020, 07:34:06 PM »
They were really high..I saw the price a while back.. cant recall .. maybe started with a 2...
 Terry you better give Er with those rides, we should be all wrapped up hy Halloween. .. its not far off..
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Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #506 on: October 17, 2020, 08:49:17 PM »
Well duh, move the TV into the shop area. ::)

Well duh back to you Scott, I’m not moving my 55 inch flat screen with surround sound out to my crowded workbench buddy, it’s #$%* weather outside and I’m more than comfy in my big leather recliner.   ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #507 on: October 17, 2020, 09:14:57 PM »
But I'm still doing bike stuff as I lounge around here. I just sold yet another ported head for some good money, which will almost pay for the Delkevic pipe I'm gonna put on my K0, and I remembered that I don't have a new cam cover gasket for the GPZ engine, so I jumped on Ebay and bought one, so it should arrive by next weekend, when hopefully the big black engine will go in the big black bike. Sweet. ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #508 on: October 17, 2020, 09:21:40 PM »
They were really high..I saw the price a while back.. cant recall .. maybe started with a 2...
 Terry you better give Er with those rides, we should be all wrapped up hy Halloween. .. its not far off..

Thanks Frank, I just heard that I can go 25 Km (15 miles) from home from next week, so I'll have to plan a circular route with my house as the centre point, and a 25 Km radius. At least the weather is slowly improving, so I should get my 20 in by years end. ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline grcamna2

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #509 on: October 17, 2020, 09:43:34 PM »
Glad they're slackening-up on that 'stay at home'
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #510 on: October 17, 2020, 10:17:22 PM »
Thanks Bill, I think we've been locked down for around 16 weeks this time around, so most of us are just sick of it. The worst part is that the whole situation would never have happened had it not been for our left wing state premier choosing to ignore the advice of the right wing Prime Minister, or even the other state premiers.

All the other states used police and army pers to guard the "new arrivals" from overseas who were supposed to be isolating in their (free) hotel rooms for 2 weeks before being allowed out into the general population, but instead, "Dopey Dan" Andrews employed untrained, unprepared and mostly brain dead private security guards who took the inmates on shopping trips, let them wander around the hotel infecting other guests, and in some cases, were having sex with them.

We went from no new cases and less than 50 dead after the first wave, to up to 1300 new cases per day, and around 800 dead. Our borders are closed, retail outlets are closed, pubs, clubs and nightclubs are closed, restaurants can only do takeaway or home deliveries, and even though I had my haircut just a day before the lockdown, I look like I've got a grey afro now. What really pissed me off though, was not being able to ride my bikes. I still have to pay the registration, insurance and storage fees, but not being able to just jump on and go for a ride has really annoyed me.

There's currently a judicial enquiry into the hotel quarantine fiasco, but we all know that Dopey Dan and the lockdown gang will get off unscathed, such is the way with crooked politicians who have all had a terrible case of amnesia and can't remember who it was who actually decided to go against the advice of smarter people and effectively destroy the lives, and livelihoods of thousands of Victorians. Oh well, if I can go for a ride this week and get a fcuking haircut, I'll feel a little bit happier. ;D   
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Trevor from Warragul

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #511 on: October 18, 2020, 03:29:58 AM »
I reckon "Dopey Dan" is like a few dodgy managers I've known, who were smart enough to never put anything in writing. I'd send an email asking a specific question, then the phone would ring.  Took me a while to figure out what they were doing.

I believe it's called "plausible deniability".
« Last Edit: October 18, 2020, 03:35:44 AM by morini »
1971 Kawasaki H1A
1972 Honda CB350F
1976 Moto Morini 3 1/2 Sport
1978 Honda CBX
1997 Suzuki Bandit 1200
1999 Ducati Monster 750

Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #512 on: October 18, 2020, 03:37:36 AM »
I reckon "Dopey Dan" is like a few dodgy managers I've known, who were smart enough to never put anything in writing. I'd send an email asking a specific question, then the phone would ring.  Took me a while to figure out what they were doing.

Yeah mate, he threw his health minister under the bus, then his senior APS chief of staff resigned, not to mention the Police Commissioner, and all those left have forgotten just who it was who said to sign up a bunch of brain dead mall cops to protect Victoria from the worst health crisis since the Spanish flu. And yet his supporters will probably vote him back into office once the judicial enquiry hands down an "Inconclusive" finding...........  ::) 
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline PeWe

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #513 on: October 18, 2020, 10:05:40 AM »
There is another pandemi going on, worse than the Covid, incompetence in charge.
When this happen a private company it will either close, been taken over (bought by competitor)  or change leader(s) over night.
I have seen the latter happen where I work, a multinational company.
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #514 on: October 20, 2020, 06:52:48 AM »
Well all Covid-19 incompetence aside, today has been a great day. The thing about any build, is that it's like "Fire and Movement" (a military term) you just need to keep moving forward. I've lived by this mantra, that (not just bike builds) life itself is like fire and movement, you just need to keep moving forward. For me, words to live by. 

The weather here is just getting better every day. I had the heater off by 11 am, and by 12, decided to sneak outside and do some bike stuff while on my "lunch break". I had a can of really good (as opposed to really sh1t) paint stripper arrive at lunch time, and was able to very quickly remove the paint from the starter motor cover and cam cover. Surprisingly, the alloy cam cover with heaps of corrosion and not much original paint was a lot harder to strip than the steel starter motor cover, so I had to keep wetting it with stripper, and use a little copper wire "toothbrush" to remove the bulk of the paint, then several applications with my "Face Breaker" wire wheel attachment on my pedestal grinder, followed by several wire wheel attachments on my dad's old dremel tool to get rid of the fluffy white corrosion. Dad's dremel is a real basic unit, not variable speed, so it turns most of the brushes inside out, which is a pain in the arse. I think I'll buy another Chinese knockoff with variable speeds, just so I can slow it down a bit. 

Anyhoo, I cleaned the cam cover right back to bare aluminium, then etch primed it and then hit it up with some satin black engine enamel, baked it in my industrial oven @ 100 Deg C for an hour, and was happy.

GPZ1100 20 Oct 2020 3 by Terry Prendergast, on Flickr

Now like any bike with a wet clutch, after sitting for a long time, the clutch tends to weld itself together, so just like on the F2, I popped the clutch cover off, which was no mean feat, as Mr Silicon hadn't actually opened up the cam cover, so the original gasket was well and truly glued into place. Once again, I pulled every plate out, degreased it, then oiled each plate and reassembled it. Something I didn't think too hard about was that the gasket for a Z1/KZ1000 is totally different until I compared the gasket to the hole.

GPZ1100 20 Oct 2020 1 by Terry Prendergast, on Flickr   

Bugger, where did I leave that "Weeties" box? I've ordered a new one, but if it's not here by the weekend, I will be making my own.

Oh well, at least the alternator cover gasket hasn't changed.

GPZ1100 20 Oct 2020 2 by Terry Prendergast, on Flickr

The starter motor cover came up good enough with some Rustoleum satin black, cheap and cheerful, like me.

GPZ1100 20 Oct 2020 5 by Terry Prendergast, on Flickr

I'd never checked the engine number until now, to determine which model GPZ1100 engine I have. I assumed mine was the first (1981/82) model (108 BHP) but was happy to discover that it's actually the 1983 model. (120 BHP) I'm pretty happy with that, in a bike that originally had 83 BHP. Should be a fun ride! ;D

GPZ1100 20 Oct 2020 4 by Terry Prendergast, on Flickr




 
« Last Edit: October 20, 2020, 06:59:18 AM by Terry in Australia »
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline grcamna2

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #515 on: October 20, 2020, 09:16:50 AM »
You going to hook-up the oil cooler to this GPZ engine Terry ?
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #516 on: October 20, 2020, 01:46:10 PM »
Yes Bill, it came with an oil cooler as standard, I just popped it off so I could remove the cam cover, but it will have to go back on once the engine’s in the frame, I’ll just need to make some mounting brackets for it. ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline grcamna2

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #517 on: October 20, 2020, 02:13:01 PM »
Will the GPz engine have different width or location motor mounts than the KZ engine ?
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #518 on: October 20, 2020, 04:20:59 PM »
Thanks Bill, there are extra mounting points on the GPZ engine that will be redundant when I install it into the KZ1000 frame, but the standard mounts are in the same locations, I'm told, and have seen a pic of a GPZ engine in a KZ1000. The GPZ engine's front mounts are rubber tubes with a steel liner, that are pressed into the mount castings, and I've been advised to get rid of them and turn up some alloy spacers, but I'll have a look once I shove the engine back into the frame. I'll take a pic later to show you what I'm talking about. ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline spotty

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #519 on: October 20, 2020, 04:30:58 PM »
the vmax engine mounts are the same, rubber with steel inners, and they allow the engine to twist in the frame about an inch under hard acceleration, it twists down towards the back left corner, making missing 1st to 2nd changes just that bit easier

they're there to reduce vibration

the common replacement when they wear out , as happens quite quickly, is solid alloy ones. i've done mine and it does vibrate thru the bars a bit more but the gear change thing is much reduced
i blame Terry

Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #520 on: October 20, 2020, 04:40:13 PM »
Yep, that's the same on the GPZ Spotty, but only the front mounts are rubber, which I thought a bit odd? But anyway, yeah, the common wisdom of the ZED-Heads was to ditch them, and I think I've got some alloy bar I can machine down to make solid ones. What I do find interesting is that there are two extra mounting points on the GPZ engine, making a total of 8 mounting points for this engine.

Did they think that this engine with 120 BHP was somehow gonna burst out of the frame? Or was it considered a "Stressed member" of the chassis, making it handle like a Ducati? All reports at the time said it handled more like the Titanic, but that could have been fake news........ ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Trevor from Warragul

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #521 on: October 21, 2020, 05:52:29 AM »
Quote
All reports at the time said it handled more like the Titanic, but that could have been fake news........

A mate of mine had a GPz1100 with the quarter fairing.  Yep, it handled like the titanic.  Rock steady on high speed sweepers, but very heavy around tight corners.  His solution was to spin the rear tyre around slower corners.

I was on the back when he decided to open it up going over the West Gate bridge.  He was confused, because at 220 kmh it was pulling to the left, then to the right...  I never told him I was putting my left arm out into the slipstream, then back, then my right arm...  ;D
1971 Kawasaki H1A
1972 Honda CB350F
1976 Moto Morini 3 1/2 Sport
1978 Honda CBX
1997 Suzuki Bandit 1200
1999 Ducati Monster 750

Offline PeWe

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #522 on: October 21, 2020, 07:38:12 AM »
GPZ900 from the 80's was also slow in corners, but stable. I had to really press it down hard when testing one for first time, drove as I was used to with my CB750.
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline RAFster122s

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #523 on: October 21, 2020, 02:13:31 PM »
Did they build them to be stable straight line bikes because of trouble with the early bikes becoming known as widowmakers?

The CB550 and CB650 were a much more nimble handling bike out of the box than the cb750.
Did other brands have this same trait?
By the time 93 rolled around and the CBR600 and GSXR came out the ability to be blistering fast in both the corners and the straights had been nailed down...
« Last Edit: October 21, 2020, 02:15:14 PM by RAF122S »
David- back in the desert SW!

Offline Terry in Australia

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Re: Terry's NEW big Kawasaki build, the "Lockdown 1428" special.
« Reply #524 on: October 22, 2020, 01:59:18 AM »
I think that the first of the GPZ1100's were pretty much like the Z1-KZ1000's, they had magnificently powerful engines, but frame tech was lacking. The "Widow-Maker" title really referred to the Mach III 500/H2 750's, while the Z1's were considered "poor" handlers" their frames were at least the equal of CB750's, they just had 80 BHP against a CB750's 67 (on a good day) so they got you into trouble a lot quicker than on anything else. I remember having a bad day at work one day, then riding out the front gate of the barracks and giving it the berries, and hoisting the front wheel up in the air to 11 o'clock, something that I've never done on a CB750. They had slightly bigger (36mm) forks, but otherwise the same sh1t suspension and tyres. Just installing Koni/Ikon shocks and progressive fork springs, and even Stinko tyres, and it's a way better all round bike. ;D   
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)