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post #1 of 6 (permalink) Old 08-17-2010, 11:08 PM Thread Starter
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Exclamation spedo drive question

looking to by a spedo drive for my 86 VN750. Found one, but it says it was to a 97. Will this fit? Any advise would be great.

My speedometer is off and i am not sure why....just replaced the cable...still not accurate, so i thought about trying to replace this....before my speedometer
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post #2 of 6 (permalink) Old 08-17-2010, 11:14 PM
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they are all the same. just bought a new one for mine. it is calibrated for the front tire size which has not changed.

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post #3 of 6 (permalink) Old 08-17-2010, 11:27 PM
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Originally Posted by npr0099 View Post
My speedometer is off and i am not sure why....
My speedo has always been off ~ at higher speeds, it's off @ 5 mph.

EZC

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post #4 of 6 (permalink) Old 08-17-2010, 11:44 PM
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It has alot to do with the tire inflation and wear too. An 1/8 inch of tread wear. could amount to an inch of roll out lost and those inches add each revolution. there are alot of factor involved. alot has to do with the cable being gumed up. I assume you noticed when replaceing yours the are just a long coiled cable that will torsion in a spring like way with a load. your speedometor could be the culprit too. i do not think the drive is your problem. it it was going out you speedo would be violently hoping in tune with the worm gear slipping. If you want to pay for shipping and send a post office e label and I will give you a speedo. I have no need for it since i have a vn800 tank and to much parts ranging from appliances to my street rod stuff lol. If interested pm me and we'll figure someing out.

Harley sportster fenders
custom raked front end
custom exhaust
vn800 tank and guages
modified seat and recovered
rear frame chopped
custom wiring harness
airbox removed
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post #5 of 6 (permalink) Old 08-18-2010, 12:49 AM
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Speedo is the same for all models, and reads about 10% high.
Odometer and trip meters are said to only read about 1.7% high.

Changing out the stock 100/90-19 front tire for a 110/90-19 will reduce the speedometer error to about 3%, but also affects the odometer.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
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July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
https://www.vn750.com/forum/11-vn750-general-discussion/9127-top-ten-items-you-would-suggest-new-owner-do-his-new-ride.html
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post #6 of 6 (permalink) Old 08-18-2010, 08:59 AM Thread Starter
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pm sent!
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