KZ750E vs H

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07 Sep 2022 18:22 #873536 by Elfarm98648
KZ750E vs H was created by Elfarm98648
After installing the 4.5 gallon KZ750E tank onto my stock KZ750H, I have noticed I do not have the turn radius that I had with the stock tank. The fork tubes contact the tank before it hits full lock. Also the seats are going to be a bit differently Shaped because of how the rear of the tank contours. 
Are the KZ750E triple trees going to be different from the H triples? As of right now I do not have a fork lock because of the fork tubes contacting the tank before lock can be achieved. It does not make much of a difference in riding except for slow speeds when the maneuverability is needed. 

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07 Sep 2022 19:05 #873538 by Nessism
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07 Sep 2022 20:18 #873541 by Elfarm98648
Replied by Elfarm98648 on topic KZ750E vs H
It does appear the the E’s triples are pushed forward to accommodate the larger tank. Part numbers do support this. Thank you Nessism. 

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08 Sep 2022 05:30 #873545 by Elfarm98648
Replied by Elfarm98648 on topic KZ750E vs H
Before I buy a set of trees, I decided to check the fork tube part numbers to make sure they both have 36mm forks. Partzilla does have them listed under different part numbers, can someone tell me what the tube diameter of a KZ750E is?

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08 Sep 2022 05:38 - 08 Sep 2022 05:40 #873546 by Wookie58
Replied by Wookie58 on topic KZ750E vs H

Before I buy a set of trees, I decided to check the fork tube part numbers to make sure they both have 36mm forks. Partzilla does have them listed under different part numbers, can someone tell me what the tube diameter of a KZ750E is?
Are there any dimensions listed for the fork seals for both, the difference may be in the length, also your Ltd looks to have "leading" forks?
Last edit: 08 Sep 2022 05:40 by Wookie58.

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08 Sep 2022 05:45 #873547 by Wookie58
Replied by Wookie58 on topic KZ750E vs H

After installing the 4.5 gallon KZ750E tank onto my stock KZ750H, I have noticed I do not have the turn radius that I had with the stock tank. The fork tubes contact the tank before it hits full lock. Also the seats are going to be a bit differently Shaped because of how the rear of the tank contours. 
Are the KZ750E triple trees going to be different from the H triples? As of right now I do not have a fork lock because of the fork tubes contacting the tank before lock can be achieved. It does not make much of a difference in riding except for slow speeds when the maneuverability is needed. 
Just be a little careful how "spirited" your riding is, if it goes into a "slapper" the forks will smash the tank and ruin all that bodywork you have been doing 

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08 Sep 2022 05:50 #873548 by Elfarm98648
Replied by Elfarm98648 on topic KZ750E vs H
Wookie, I am not sure what you mean by leading but I believe the E has the leading forks. The forks seals are the same as well as the fork caps. 
 
this is the H steering stem that is currently on my LTD. 
This is the E steering stem. 

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08 Sep 2022 06:28 - 08 Sep 2022 07:10 #873549 by Wookie58
Replied by Wookie58 on topic KZ750E vs H

Wookie, I am not sure what you mean by leading but I believe the E has the leading forks. The forks seals are the same as well as the fork caps. 
 
this is the H steering stem that is currently on my LTD. 
This is the E steering stem. 
On the Ltd the front axle is in front of the vertical axis of the fork leg (leading) the "E" has the forks on the same axis as the fork leg. using "E" trees with "leading" forks will push the wheel even further forward increasing the "offset" which I believe will slow the steering even more than a stock Ltd (very stable in a straight line though) I guess you need to decide what you want from the bike
It may be possible to use your "H" top tubes in "E" lowers with an "E" axle to maintain current height without increasing the offset with the "E" trees
Last edit: 08 Sep 2022 07:10 by Wookie58.

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08 Sep 2022 07:21 #873550 by JR
Replied by JR on topic KZ750E vs H
Good suggestion Wookie58

My kz750E1 axle. Not leading 
 

fork tube 36mm

1980 kz750E1, Delkevic exhaust
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08 Sep 2022 07:43 #873551 by Elfarm98648
Replied by Elfarm98648 on topic KZ750E vs H
Wookie, so if I am understanding you correctly, the H forks bottoms will slow the steering at low speeds but increase stability in a straight line while the E forks will maintain the angles and continue to steer like stock. 

My steering is so limited right now that even with the slower steering at slow speeds but increased turning radius it would be worth it to change over the stems in order to regain the steering angle. I’ll post a picture tonight of full lock with the E tank and H stem. 
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08 Sep 2022 10:02 #873558 by Wookie58
Replied by Wookie58 on topic KZ750E vs H

Wookie, so if I am understanding you correctly, the H forks bottoms will slow the steering at low speeds but increase stability in a straight line while the E forks will maintain the angles and continue to steer like stock. 

My steering is so limited right now that even with the slower steering at slow speeds but increased turning radius it would be worth it to change over the stems in order to regain the steering angle. I’ll post a picture tonight of full lock with the E tank and H stem. 
Hi, yes you are understanding correctly, here in the UK we don't have many straight roads so try not to slow the steering 

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17 Sep 2022 19:58 #874029 by Elfarm98648
Replied by Elfarm98648 on topic KZ750E vs H
I wanted to update the thread as I have now installed the E Steering stem and I now have full range of steering. I have yet to ride it as I was focused on syncing the carbs and in the process of reading the plugs, I stripped out the number 2 cylinder spark plug. No fun but we will see tomorrow if it needs a helicoil or just a retap. 

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