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RPM crusing
- MLMG
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- Wookie58
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- gordone
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16 May 2023 01:33 #884739
by gordone
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Replied by gordone on topic RPM crusing
Hehe I think the RPM must be wrong then 
the clutch is solid.
will find the ratio I have now.
When I’m crusing I don’t need to go down to 3th gear to find power when passing, just usr the throtle… so I was wondering if I go smaller rear I can have less RPM and then gear down to 3th when alot more power is needed.
its 750gpz with big bore 810cc high compresson. The carb is orginal 650 carbs…
the clutch is solid.
will find the ratio I have now.
When I’m crusing I don’t need to go down to 3th gear to find power when passing, just usr the throtle… so I was wondering if I go smaller rear I can have less RPM and then gear down to 3th when alot more power is needed.
its 750gpz with big bore 810cc high compresson. The carb is orginal 650 carbs…
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- Wookie58
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- Injected
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16 May 2023 05:21 - 16 May 2023 05:26 #884746
by Injected
Replied by Injected on topic RPM crusing
6K at 90KPH is way too high, change your gearing.
I made so much more power than stock with my 831cc bike that I had to change the gearing. Your probably about 10 HP down from what I have, I had to change gearing because I could not shift out of first fast enough.
I run a 17T front and a 38T rear, at 90KPH it revs at 4,000.
If you have enough HP it will pull strong in any gear.
I made so much more power than stock with my 831cc bike that I had to change the gearing. Your probably about 10 HP down from what I have, I had to change gearing because I could not shift out of first fast enough.
I run a 17T front and a 38T rear, at 90KPH it revs at 4,000.
If you have enough HP it will pull strong in any gear.
Last edit: 16 May 2023 05:26 by Injected. Reason: pic
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- Wookie58
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16 May 2023 14:09 #884774
by gordone
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Replied by gordone on topic RPM crusing
Thank you all, will collect numbers and come back
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- Scirocco
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16 May 2023 16:14 #884778
by Scirocco
My 1975 Z 1 B 900 Project
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
Replied by Scirocco on topic RPM crusing
The custom 17/38 final drive ratio gives you 104 kph @ 4250 rpm.
My 1975 Z 1 B 900 Project
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
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- gordone
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18 May 2023 01:12 #884827
by gordone
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Replied by gordone on topic RPM crusing
It was Norwegian national day here yesterday, so sorry for the delay
Front wheel - 100/90 - 19
Rear wheel - 130/90 - 16
Front sprocket - 16 tooth
Rear sprocket - 42 tooth
Haven`t checked these up against the webpage yet.
Front wheel - 100/90 - 19
Rear wheel - 130/90 - 16
Front sprocket - 16 tooth
Rear sprocket - 42 tooth
Haven`t checked these up against the webpage yet.
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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