77 KZ750 BACK on the ROAD

JWKZ750
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29 Apr 2017 20:25 - 29 Apr 2017 20:33 #760674 by JWKZ750

77 KZ750 BACK on the ROAD was created by JWKZ750

As some of you may know, on Easter Sunday I was on my KZ750, which I had only owned for 2 weeks. It had 9,500 miles on it and is in pristine condition.

Two days after I bought it, the carbs flooded like crazy. Turns out the brass float had a hole on the seam. Swapped that out and the following week I was excited to ride the bike.

Going through Downtown Manhattan, NYC to cross over into Brooklyn via the Williamsburg Bridge, my chain broke while I was doing 20MPH. I was lucky. Not a scratch on me or on the bike.

Went scrounging online for parts and got a JT Sprocket and chain. As of today Im back on the road and the bike runs great. It was 85 degrees F today, or about 29C and i had a great ride. Here is a photo of the bike. I took it today before I went riding.

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Last edit: 29 Apr 2017 20:33 by JWKZ750.

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650ed
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29 Apr 2017 21:16 #760679 by 650ed

Replied by 650ed on topic 77 KZ750 BACK on the ROAD

That chain adjuster is adjusted nearly all the way toward the outer end of the swing arm. Normally, it would be nearly all the way forward, especially with a new chain. Are you sure the chain has the correct number of links? Ed

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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JWKZ750
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30 Apr 2017 04:56 - 30 Apr 2017 05:06 #760698 by JWKZ750

Replied by JWKZ750 on topic 77 KZ750 BACK on the ROAD

650ed wrote: That chain adjuster is adjusted nearly all the way toward the outer end of the swing arm. Normally, it would be nearly all the way forward, especially with a new chain. Are you sure the chain has the correct number of links? Ed

Im going to count them today. There should be 106. It could be 110. If it turns out its 110, what are the repercussions of running it as is, with 4 extra links?

Last edit: 30 Apr 2017 05:06 by JWKZ750.

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Nebr_Rex
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30 Apr 2017 07:08 #760726 by Nebr_Rex

Replied by Nebr_Rex on topic 77 KZ750 BACK on the ROAD

You don't have much adjustment to compensate for chain stretch.

.

2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0

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SWest
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10 22 2014

30 Apr 2017 07:16 - 30 Apr 2017 07:17 #760728 by SWest

Replied by SWest on topic 77 KZ750 BACK on the ROAD

If you are going to take out links do it now. Does it have a master link? If so move the wheel all the way forward, disconnect the link and see if it will fit the next link without cutting it. One tooth larger countershaft sprocket will give you more adjustment room if you can't take out a link. Same with a larger rear sprocket.
Steve

Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

Last edit: 30 Apr 2017 07:17 by SWest.

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JWKZ750
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30 Apr 2017 07:35 #760730 by JWKZ750

Replied by JWKZ750 on topic 77 KZ750 BACK on the ROAD

SWest wrote: If you are going to take out links do it now. Does it have a master link? If so move the wheel all the way forward, disconnect the link and see if it will fit the next link without cutting it. One tooth larger countershaft sprocket will give you more adjustment room if you can't take out a link. Same with a larger rear sprocket.
Steve

Yes it has a riveted master link. I suppose i can take that off. BUT will i have to take the covers off and whatnot or can i do it while the chain is still on the bike (take the link out I mean)

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JWKZ750
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30 Apr 2017 14:36 - 30 Apr 2017 14:37 #760784 by JWKZ750

Replied by JWKZ750 on topic 77 KZ750 BACK on the ROAD

SWest wrote: If you are going to take out links do it now. Does it have a master link? If so move the wheel all the way forward, disconnect the link and see if it will fit the next link without cutting it. One tooth larger countershaft sprocket will give you more adjustment room if you can't take out a link. Same with a larger rear sprocket.
Steve

I counted the links on the chain as its on the bike. Its OEM spec 106 links. I wonder why it "seems" longer. Hmmmm.

Last edit: 30 Apr 2017 14:37 by JWKZ750.

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loudhvx
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30 Apr 2017 16:26 #760801 by loudhvx

Replied by loudhvx on topic 77 KZ750 BACK on the ROAD

Maybe the sprockets are smaller than stock?

1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.

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JWKZ750
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30 Apr 2017 16:41 - 30 Apr 2017 16:41 #760802 by JWKZ750

Replied by JWKZ750 on topic 77 KZ750 BACK on the ROAD

loudhvx wrote: Maybe the sprockets are smaller than stock?

I bought this same sprocket which lists it as stock. If you see anything wrong let me know, but I think sprocket size is 530 38T

www.dimecitycycles.com/vintage-cafe-race...ocket-jtr488-38.html

Last edit: 30 Apr 2017 16:41 by JWKZ750.

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SWest
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10 22 2014

30 Apr 2017 17:28 #760810 by SWest

Replied by SWest on topic 77 KZ750 BACK on the ROAD

Z1E lists this.
Steve
www.z1enterprises.com/530-jtr488-series-45t-rr-sprocket.html 45T
And this.
www.z1enterprises.com/530-jtf513-series-14t-fr-sprocket.html 14T

Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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SWest
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10 22 2014

30 Apr 2017 17:42 #760812 by SWest

Replied by SWest on topic 77 KZ750 BACK on the ROAD

If your rear sprocket is smaller, your takeoff will suffer but the RPM's will be lower at speed. Same as if you had one tooth larger front sprocket. On my bike (630 chain) stock is 15/35. It was great for takeoff but at 70 I was at 5000 RPM's. With the 16 countershaft I';m at 4000 .or a little over. I didn't like taching at 7000 at 90-100. Now it purrs at 90 with more to go,:woohoo:
Steve

Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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JWKZ750
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30 Apr 2017 17:44 #760813 by JWKZ750

Replied by JWKZ750 on topic 77 KZ750 BACK on the ROAD

SWest wrote: Z1E lists this.
Steve
www.z1enterprises.com/530-jtr488-series-45t-rr-sprocket.html 45T
And this.
www.z1enterprises.com/530-jtf513-series-14t-fr-sprocket.html 14T

After checking several sites, the manual and bike bandit, which references the original manual, it seems the appropriate number of teeth on the rear sprocket is 38, which is what i have on it. Im not too concerned about it. If it happens that the chain stretches beyond what can be adjusted, i'll change it then. I have 4 bikes and cant get bogged down. I had a great time on it this weekend and will continue to ride it. Or in other words, I cant be bothered lol. Whats done is done.

www.bikebandit.com/oem-parts/detail/kawa...4?m=150647&sch=37982

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77 KZ750 BACK on the ROAD

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