Interesting....a higher 5th possible ? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 11 (permalink) Old 07-01-2012, 10:22 PM Thread Starter
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Interesting....a higher 5th possible ?

Interesting....my neighbor has an older Kawi 1000 Concourse...apparently, some guy on his website rebuilds their 6 speed trannys to make the 6th a higher ratio...about $300...wonder if same guy could do it to our trannys, because Id love to be able to ride at 65-70 and 3500 rpm...think of the advantages in distance riding on the freeways...will look into it and post more as I find out...



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post #2 of 11 (permalink) Old 07-02-2012, 02:35 AM
Crap, I WAS in 5th gear.
 
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post #3 of 11 (permalink) Old 07-02-2012, 05:38 AM
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Quote:
Originally Posted by Wolfie View Post
Id love to be able to ride at 65-70 and 3500 rpm..
Keep in mind that you don't want the rpm to drop too much as our charging system only kicks in at about 3000-4000rpm. Plus, these bikes were built to for running at a high rpm. The Primary advantage I can see in doing this would be fuel economy, and I doubt that there would be enough of an increase to be cost effective for the parts an labor involved. (even if your up to the challenge of doing this yourself)

No I would LOVE to swap the 5th gear out on my car. Might have to look into that next time I drop the Trans for a clutch job.

......I'd rather wake up in the middle of nowhere then in any city on earth.

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post #4 of 11 (permalink) Old 07-02-2012, 09:05 PM Thread Starter
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Fuel economy plus less engine noise. I almost always cruise between 3-4k...rarely ever over....ridden on long rides and battery charged fine...remember, ya gotta bring up the RPMs from 1st to 4th to get to fifth...the engine will also run cooler, and adding a manual fan shutoff for the mod would help. But I prefer to get into high gears soon, and run lower rpm w/o allowing the engine to strain or lug. Been doing that since the 70s....besides with 2 cycle engines.



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post #5 of 11 (permalink) Old 07-03-2012, 12:09 AM
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love the ringy dingy sound.saw an rz350 recently that went for 1800 at a swap meet.also would love to piss off the cages behind me with the smoke.would also be great at parties to kill mosquitoes.lol

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post #6 of 11 (permalink) Old 07-03-2012, 10:28 PM Thread Starter
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They make tires now, that when you spin em (burn out), they make colored smoke.......saw that on the original Top Gear.



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post #7 of 11 (permalink) Old 07-10-2012, 06:09 PM
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I was looking at the online manual, and the bikes from Canada are geared a bit different.
I wonder how a person would find a final drive off of one.
The manual shows the U.S. models as having the final drive ratio of 2.454 15/22 x 37-10
Canadian models 2.522 15/22 x 36/10
Overall drive ratio U.S. 5.109 Canadian 5.251 in 5th gear.
Not much of a difference though, not sure the RPM difference.
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post #8 of 11 (permalink) Old 07-10-2012, 07:44 PM Thread Starter
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Well, lower is higher, so the Canadian is actually a slower top speed. Example : 5:12 gears in a car are quicker, but 4:10s give you a higher speed...but I gotta remember not to drag race Old Hoss now, lol....



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post #9 of 11 (permalink) Old 07-10-2012, 11:07 PM
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Quote:
Originally Posted by TSmith68 View Post
I was looking at the online manual, and the bikes from Canada are geared a bit different. I wonder how a person would find a final drive off of one.
The manual shows the U.S. models as having the final drive ratio of 2.454 15/22 x 37-10
Canadian models 2.522 15/22 x 36/10
Overall drive ratio U.S. 5.109 Canadian 5.251 in 5th gear.
Not much of a difference though, not sure the RPM difference
.
Hmmm...Clymer manual in table 1 of chapter 5 shows US and Canadian vn750s with the same final reduction ratio of 2.522

All other models (Europe and Oceania?) are 2.454


I`m assuming if the Kaw online manual is correct, then the Clymer must be a typo. I think I did the math on this once and it only amounted to 1 or 2 mph at redline. Not 100% sure though, and I`m falling asleep half typing here and half watching Highlander on TV. Maybe work it out again tomorrow when I am wide awake.

Quote:
Originally Posted by Wolfie View Post
Well, lower is higher, so the Canadian is actually a slower top speed. Example : 5:12 gears in a car are quicker, but 4:10s give you a higher speed...but I gotta remember not to drag race Old Hoss now, lol....
I think you would still win Wolfie. IIRC you mentioned somewhere that you are 6' 1" and weigh 210. If so, you have a 90 lb advantage. Not to mention the extra 40 years experience on two wheels.

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post #10 of 11 (permalink) Old 07-10-2012, 11:29 PM
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I could have misread that. I will research it some more and see what the specs show.
In a car the higher numerically the numbers are, the slower you will go.
Higher numbers equal better off line acceleration, but slower top speeds.
Lower numbers equal higher top speed, but slower acceleration.
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