KZR's Bikes of the Month for 2024

'83 KZ1000R2 - Cafe racer (take two)

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16 Mar 2014 09:28 #625408 by spdygon
Replied by spdygon on topic '83 KZ1000R2 - Cafe racer (take two)
nice work..........those rear set seem a little to far back......all the weight will be on ur arms.
hope u young :unsure:

1982 GS1000sz Katana ( #15...17K Miles)
1982 GS1000sz Katana ( # 297....7100k Miles)
1978 Kz1000 Z1R. 10K Miles1
1978 kz1000 z1r 27k miles
1977 KZ 1000 A ( Project ) 54K Miles
1976 Kz900A4 (Red)21K miles
1976 Kz900A4 ( Red)7500 miles
1974 Z1 900 project

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16 Mar 2014 12:14 #625427 by tommyboah
Replied by tommyboah on topic '83 KZ1000R2 - Cafe racer (take two)

spdygon wrote: nice work..........those rear set seem a little to far back......all the weight will be on ur arms.
hope u young :unsure:


I cannot say I disagree with you on that :unsure: If I had the choice I would have mounted them a good couple of inches forward, unfortunately modifying the stock brackets left this as the only place to mount these suckers. My body, fortunately, is still young and will have to pay the bill for this :P

.Tommyboy

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16 Mar 2014 14:43 #625450 by Haybus
Replied by Haybus on topic '83 KZ1000R2 - Cafe racer (take two)
Those are way back there. I'm thinking your young back might be okay, but your twig and berries will be making the payments after a long ride. :woohoo: :woohoo:

Alan

1976 KZ900 LTD (sort of)
2005 FJR
2009 Hayabusa
www.kzrider.com/forum/11-projects/557845...-streetfighter-build

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17 Mar 2014 00:41 - 17 Mar 2014 00:43 #625503 by tommyboah
Replied by tommyboah on topic '83 KZ1000R2 - Cafe racer (take two)
I got some work done last night, servicing my brake calipers. When you make something go faster, it might also be a good idea to make sure you can stop well. I am taking a part all calipers and rebuilding them, also with new pistons. Dunno really if the new pistons were really necessary, but when ordering the rebuild kit, it was easy to add them to the basket:



One of the pistons top was worn and a part was chipped away. Probably not a problem, but I will be replacing them:



I will also be painting the calipers, either black like original or silver. Since the bike is all black, I thought silver might be good and match also some of the silver parts that will be on the engine.

Next thjing I did last night was trying to find a way to mount the rear brake fluid reservoir. I kind of cocked up not making a bracket before powedercoating the frame. I was looking through some brackets I had lying around and found a couple of caliper spacers from my mountain bike that I am not using. They fit well for mounting the reservoir, without the need to drill the frame B)



Doesn't come out too shabby I think?

While I was at it, I needed a way to mount my rear blinkers. I also cocked up not making any tabs on the frame before powdercoating and needed a place to mount them. On the shock mounts is a good position, and I needed a bracket. I came across a rear derailleur hanger, also from my mountain bike. With a slight mod. it will fit like a glove:



So this is how the reservoir and blinkers will be mounted. Any other bright ideas on how to do this?


.Tommyboy
Last edit: 17 Mar 2014 00:43 by tommyboah.

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17 Mar 2014 15:21 #625570 by tommyboah
Replied by tommyboah on topic '83 KZ1000R2 - Cafe racer (take two)
Mounted my head lamp and blinkers, and put on a tarozzi fork brace.

.Tommyboy
Attachments:

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17 Mar 2014 23:19 #625612 by lightitup
Replied by lightitup on topic '83 KZ1000R2 - Cafe racer (take two)
looks good keep the pics flowing

81 kz 550 ltd

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19 Mar 2014 02:35 #625719 by tommyboah
Replied by tommyboah on topic '83 KZ1000R2 - Cafe racer (take two)
Look mommy, my calipers are solid gold B)



I cleaned and started painting my calipers yesterday. I was a bit hesitant to go for anything else than the stock black, but since my entire bike is black and I am going with the stock wheels (silver/gold combo), I think it will work out good.

.Tommyboy

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19 Mar 2014 03:31 - 19 Mar 2014 03:37 #625723 by LarryC
Replied by LarryC on topic '83 KZ1000R2 - Cafe racer (take two)
:ohmy: I can't understand why you chose such a rare motorcycle to modify this way. You're not doing anything that makes the bike better. It's just different and it''s value and appeal have been lost forever.

I admire what you're doing. You just picked the wrong bike to start with :)

Things being what they are, you might at least consider the following advice about the engine. At least you can save face if it runs strong. If it's just a warmed over stocker with pistons and carbs it will only add insult to the already obvious injury :blush:

The RS36 carburetors will work on your engine but they are not optimal for it because you stopped short. You really need to take the motor to a higher level to take full advantage of them. First thing to go should be the piddly stock cams. At least find some late GPz11 cams for it.

Put GPz 38mm intake valves in it. Open the throats up to 34.2mm and open up the bowls to at least 34mm. Check the valve guides to make sure none of them are sinking on you.

That work won't turn it into a fire breather but it will at least wake it up a bit....

Larry C.
Last edit: 19 Mar 2014 03:37 by LarryC.

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19 Mar 2014 05:18 #625737 by tommyboah
Replied by tommyboah on topic '83 KZ1000R2 - Cafe racer (take two)

LarryC wrote: :ohmy: I can't understand why you chose such a rare motorcycle to modify this way. You're not doing anything that makes the bike better. It's just different and it''s value and appeal have been lost forever.


You know, different can also mean better ;) It's all in the eye of the beholder...

LarryC wrote: I admire what you're doing. You just picked the wrong bike to start with :)

Things being what they are, you might at least consider the following advice about the engine. At least you can save face if it runs strong. If it's just a warmed over stocker with pistons and carbs it will only add insult to the already obvious injury :blush:

The RS36 carburetors will work on your engine but they are not optimal for it because you stopped short. You really need to take the motor to a higher level to take full advantage of them. First thing to go should be the piddly stock cams. At least find some late GPz11 cams for it.

Put GPz 38mm intake valves in it. Open the throats up to 34.2mm and open up the bowls to at least 34mm. Check the valve guides to make sure none of them are sinking on you.

That work won't turn it into a fire breather but it will at least wake it up a bit....


I appreciate your input. And if I had a choice knowing that all you kawaguys out there get so upset about this I would probably have chosen otherwise. Enough said about that.

I will take into consideration your input on the cams and porting. I have in addition to boring the engine to 1075cc also ported the in- and outtakes. Dunno any exact dimensions on the porting of the in and outtakes though... I am still waiting to get my engine back from the shop. I am excited to see how it runs when I get everything put together.

.Tommyboy

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19 Mar 2014 07:09 #625746 by 531blackbanshee
Replied by 531blackbanshee on topic '83 KZ1000R2 - Cafe racer (take two)
are you going with gold wheels with machined (silver)highlights,like factory but gold instead of black?

leon

skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0

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19 Mar 2014 07:30 - 19 Mar 2014 07:30 #625749 by tommyboah
Replied by tommyboah on topic '83 KZ1000R2 - Cafe racer (take two)

531blackbanshee wrote: are you going with gold wheels with machined (silver)highlights,like factory but gold instead of black?


I am going with the factory gold wheels with silver highlights like in the photo (not my bike):



I am hoping the gold calipers will match the gold on the rims, without beeing too bling. Don't know yet :unsure: I will take a photo as soon as they are ready and post... i just thought that the black calipers on the all black bike would be a little boring.

.Tommyboy
Last edit: 19 Mar 2014 07:30 by tommyboah.

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19 Mar 2014 16:45 #625804 by LarryC
Replied by LarryC on topic '83 KZ1000R2 - Cafe racer (take two)

tommyboah wrote:

LarryC wrote: :ohmy: I can't understand why you chose such a rare motorcycle to modify this way. You're not doing anything that makes the bike better. It's just different and it''s value and appeal have been lost forever.


You know, different can also mean better ;) It's all in the eye of the beholder...

LarryC wrote: I admire what you're doing. You just picked the wrong bike to start with :)

Things being what they are, you might at least consider the following advice about the engine. At least you can save face if it runs strong. If it's just a warmed over stocker with pistons and carbs it will only add insult to the already obvious injury :blush:

The RS36 carburetors will work on your engine but they are not optimal for it because you stopped short. You really need to take the motor to a higher level to take full advantage of them. First thing to go should be the piddly stock cams. At least find some late GPz11 cams for it.

Put GPz 38mm intake valves in it. Open the throats up to 34.2mm and open up the bowls to at least 34mm. Check the valve guides to make sure none of them are sinking on you.

That work won't turn it into a fire breather but it will at least wake it up a bit....


I appreciate your input. And if I had a choice knowing that all you kawaguys out there get so upset about this I would probably have chosen otherwise. Enough said about that.

I will take into consideration your input on the cams and porting. I have in addition to boring the engine to 1075cc also ported the in- and outtakes. Dunno any exact dimensions on the porting of the in and outtakes though... I am still waiting to get my engine back from the shop. I am excited to see how it runs when I get everything put together.


Not upset, just puzzled. :) You probably could have sold it bone stock for a nice profit and started with something rough that needed modifying. I hope it all works out good. You're work looks pretty good.

A few years back I watched a bunch of yahoos on here talk a guy into hacking up a bike that never got finished. By the time it was done being hacked, it was a complete abortion that wouldn't have been safe to ride. Things like that irritate me....I just shake my head an mumble "F'n Kids" ;)

Larry C.

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