KZR's Bikes of the Month for 2024

KZR750R1

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28 Jul 2008 05:48 #228651 by babyELR
Replied by babyELR on topic The KZR750R1 Return to life 08
Almost forgot, the only thing with the ZRX shocks are that you cannot run a stock chain guard. The spring diameter is larger, and the chain guard does not clear, even if notched.

current bike:
1982 GPZ-750
past bikes:
1978 Z1-R
1982 KZ-550, 615 kit, cams, head-work
1978 GS-1000 drag bike (younger days fun)

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28 Jul 2008 12:54 #228737 by kzr750r1
Replied by kzr750r1 on topic The KZR750R1 Return to life 08
I'll keep the ZRX shocks in mind. As for the chain guard. I never had that part, bike was salvaged prior to my purchase back in the late 80's. This was one of the origional bits missing.

KZ750R1 + 1991 ZR750 = KZR750R1
Better to be shot out of a cannon then squeezed through a tube. - HST

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02 Aug 2008 11:58 #229703 by kzr750r1
Replied by kzr750r1 on topic The KZR750R1 Return to life 08
Well it's off the Dyno loosing 2 hp from the old base line numbers.

At this point running 60ish hp. Probably should not have gone with these carbs...In a word hmmmm.

I wanted the intake extensions off being the only major change, plus the manual chain tensioner. These carbs are meant for racing, not road riding. So there is a major bell curve on the O2 that we'll likely never get away from...
Air box was one thought. But, to really utilize these carbs the motor and head need to be reworked. Big bore daddy. Later. After suspension and breaks are up to date.

Regardless, the case is ready for finishing, and it runs. So she's on her way home in a few days.

I'll post some pics of the case repair before paint.

Clipping my budget this round she will be home for a full on nut and bolt.

Need to make a new muffler hanger and she should be ready to rumble for fall.

Don't want to risk riding home with a three year old tag on it. No time to get in and out of the DMV...Hmmmm I'll have to see if I can pull it out of NON-OP online.

Still need to do a full safety check on the HW before riding though.

See ya,
Sean

KZ750R1 + 1991 ZR750 = KZR750R1
Better to be shot out of a cannon then squeezed through a tube. - HST

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02 Aug 2008 16:37 #229760 by ZER
Replied by ZER on topic The KZR750R1 Return to life 08
kzr750r1 wrote:

Top detail. I hammerd this back in to the case... Probably will be cut out and replaced.


I have found that "Quick Steel" bonds great to aluminum and is easily tooled and sanded smooth. It is available at walmart near the JB Weld.

Michigan Yooper
1983 KZ440 LTD Belt Drive,(drag bars, smoothed side covers, shaved seat, pod filters, bar end mirrors) 1981 KZ440 LTD (parts bike)

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  • guitargeek
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  • Elitist, arrogant, intolerant, self absorbed.
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03 Aug 2008 05:06 #229817 by guitargeek
Replied by guitargeek on topic The KZR750R1 Return to life 08
Man, I love that bike! Really glad to hear of you getting it back on the road!

1980 KZ750-H1 (slightly altered)
1987 KZ1000-P6 "Ponch"
1979 GS1000 "Dadzuki"

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04 Aug 2008 07:31 #230048 by kzr750r1
Replied by kzr750r1 on topic The KZR750R1 Return to life 08
Derek has saved me the trouble of taking photos of the repair. You'll see three stages including the drill jig.

www.moto-lab.com/gallery_index-reframe_html?itemid=225

Going to go pick it up Tuesday provided I get a truck from my friend. Man I miss my truck.

KZ750R1 + 1991 ZR750 = KZR750R1
Better to be shot out of a cannon then squeezed through a tube. - HST

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10 Aug 2008 20:08 #231265 by Bad Kaw
Replied by Bad Kaw on topic The KZR750R1 Return to life 08
Progress???
-KR

78 Kawasaki Z1R
81 Kawasaki KZ1000J (mods)
82 Kawasaki ELR Clone (1000 J)
82 Kawasaki KZ750R1/GPz750 ELR-ed
70 Kawasaki KV75
83 Honda CB1100F (few mods)
79 Suzuki GS1000 (rolling frame / project / junk)
84 Suzuki GS1150ES (modified project)
83 Yamaha XJ900R (project / junk)

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10 Aug 2008 20:55 #231277 by Bad Kaw
Replied by Bad Kaw on topic The KZR750R1 Return to life 08
BTW: For rear-shocks these work nice and they raise the back of the bike a bit in the process. They are off a Zephyr 750 and the 550 and 1100 have them also.
-KR

78 Kawasaki Z1R
81 Kawasaki KZ1000J (mods)
82 Kawasaki ELR Clone (1000 J)
82 Kawasaki KZ750R1/GPz750 ELR-ed
70 Kawasaki KV75
83 Honda CB1100F (few mods)
79 Suzuki GS1000 (rolling frame / project / junk)
84 Suzuki GS1150ES (modified project)
83 Yamaha XJ900R (project / junk)
Attachments:

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18 Aug 2008 20:36 #232807 by kzr750r1
Replied by kzr750r1 on topic The KZR750R1 Return to life 08
It's running now with all the body work and tank on. Sounds great with the new cam chain tensioner. No cam chain slop on this puppy any more. Carbs still make noise at idle, always have, wonder if this is pervasive with the RS carb? They clatter at idle and shut up once the RPM go up.

It didn't want to stay at idle and I'll need to look at the cables to be sure no binding is involved with the tank on...

Still need to get the registration and insurance out of the way. I just needed to hear it run tonight. Lift my spirits a bit. Motivation, ya know.

Last week or so my garage was on it's ear. I had to take advantage of some Lab furniture the office was getting rid of... New shop bench is excellent! Welders and other tool boxes stuff nicely under this as the support frame is all in the back. Only legs/feet forward so no cross beam in front. So my weekend was spent moving the stuff back to shelves and other organizing so I can find all my parts boxes.

I have to kick my wifes crap out of the way.... Eight bags of garbage with our address and personal information on it for the shredders. Reminds me to throw it in her truck now.

Since the next few weeks will be spent on an office consolidation project and other nightmares at work I'll be taking my time...

One item that was interesting is a report from Derek about YSS shocks he's received at this point. Not for my bike but for others.
1) He notes they are a little heavy compared to others.
2) They do not offer a straight rate spring option.
3) They didn't mention a flat rate shipping cost of $75.

I thank everyone for their interest. Not sure what I'm going to do just yet about the shocks. Not sure I want to place the ZRX or Zephyr units as they will jack up the back a bit more. Thanks for the picture BK how do you like them in comparison to the old units?

Still have to make the new pipe bracket and was discussing this with my machine shop friend. Well be messing with it as soon as I can get it over to his place for some fab work.

KZ750R1 + 1991 ZR750 = KZR750R1
Better to be shot out of a cannon then squeezed through a tube. - HST

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21 Aug 2008 20:45 #233394 by moto
Replied by moto on topic The KZR750R1 Return to life 08
That flat rate shipping is $25.00 instead of $75.00. Even to me here in California that's about $8.00 more than UPS charges. Not a huge deal I guess, but not telling me is.

Regards,

Derek

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22 Aug 2008 09:26 #233454 by kzr750r1
Replied by kzr750r1 on topic The KZR750R1 Return to life 08
Doh... Thanks for the correction Derek... Nice to see you found the post!

See ya in a few weeks after the biach is on the road.

If any of you need fab/mechanical or tuning help Derek is the man IMO.
Find him here.
www.moto-lab.com/

KZ750R1 + 1991 ZR750 = KZR750R1
Better to be shot out of a cannon then squeezed through a tube. - HST

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27 Aug 2008 11:56 #234273 by kzr750r1
Replied by kzr750r1 on topic The KZR750R1 Return to life 08
Heading into DMV today if I have time. Will be riding shortly. :)

Have the ideas how to stiffen the pipe hanger, hope I can take care of this before the weekend.

My family is up in Forrest Hills so taking it up there for a shake down run would be slick.

I'll post some pictures of the pipe hanger once complete.

Sean

KZ750R1 + 1991 ZR750 = KZR750R1
Better to be shot out of a cannon then squeezed through a tube. - HST

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