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30th June 2009
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Drag Race Champion
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Join Date: Mar 2006
Location: Central Maine
Posts: 376 Sportster/Buell Model: 1200 Sportster/Buell Year: 2000
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speedometer suddenly off
I went for a quick ride today, and noticed the my speedometer seems to be off. I think about 10 mph. Before cruising around 50ish the tach would be around 2500 rpm, now 55 is 3000 rpm. 45 is about 2500 rpms. (all in 5th gear)
What could cause this?
Does anyone know off hand what rpm they run in 5th at 50?
I have been riding in the rain a lot more (been raining almost 28 out of the last 30 days), but that shouldnt matter. However I did notice a little condesation under the speedo lense. That has happened before and it just went away.
Thanks
Rebil
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1st July 2009
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Custom Bike Builder
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Join Date: Nov 2004
Location: So Cal
Posts: 2,213 Sportster/Buell Model: 883C Sportster/Buell Year: 2000
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The speedo needs to go through a test cycle before you start the bike.
This sounds like you quickly started the bike before the test cycle was complete.
Let it run through it's test before you start, and you shouldn't have any problem.
__________________
Ed
The Only Y2K dual-set 883C
So Cal
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1st July 2009
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Drag Race Champion
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Join Date: Mar 2006
Location: Central Maine
Posts: 376 Sportster/Buell Model: 1200 Sportster/Buell Year: 2000
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Hey thanks, its worth a shot, I will try it. Cant imagine that this was the first time that Ive done that but I will see. I actually thought about shutting it off for a min while I was out on the road.
Thanks again
Reb
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1st July 2009
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Custom Bike Builder
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Join Date: May 2009
Location: CoCo County
Posts: 2,242 Sportster/Buell Model: Nightster Sportster/Buell Year: 2009
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I don't know if there is a difference in gearing between my '09 1200 and your bike but if memory serves me correctly in 5th gear 50 mph is in the 2300-2350 rpm range and 65 mph is around 3000 to 3050 rpm. I hoped that helped a little.
Flash
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Trying to balance being an "unknown quantity" and a "known associate" ....it's tuff
2009 XL1200N Nightster...SE Heavy Breather>SE SP black slip-ons w/modified Cycle Shack baffles>Speedway Instruments MicroTach+>Super Brace>Kriss headlight modulator. Willie G skulls @ gas cap,derby and timer>Misc. black nut and bolt covers>Garage Leathers solo bag>Mustang Vintage 12.5" solo seat>LED taillights>10.75" RK air shocks>G2 Ergonomics Quick Turn throttle>Power Commander V>Giving 10R12 plugs a try.
76 HP X 79 TQ
Ol' Dirtbeard of the Cracked Craniums MC
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1st July 2009
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Senior Chief Master Mechanic
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Join Date: Aug 2005
Location: Minneapolis
Posts: 951 Sportster/Buell Model: 1200S Sportster/Buell Year: 2001
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Might be the speed sensor getting ready to go- or its caked full of metal shavings and that's throwing it off. Its an easy item to check- located on top of the transmission, next to the starter. Its visible from the right-hand side of the bike. The sensor looks like a black "cap", kind of oval in shape, about 1"x 1/2". Its held on by a single allen bolt and has a wire coming out of it.
Good Luck.
Luke
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Now if I have suspicion a felony's been committed, I can just walk right in here anytime I feel like it because I've got this badge, I got this gun, and I got the love of Jesus right here in my pretty, green eyes.
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1st July 2009
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Be annoyed Now;Ask Me How
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Join Date: May 2005
Location: Fredericksburg, VA
Posts: 4,668 Sportster/Buell Model: 1200XL Custom Sportster/Buell Year: 1999
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Every now and then (not often) my speedo tops out around 35 no matter how fast I go.
I just shut it off and restart and it's fine.
__________________
 Kevin's Sportster
"... With Liberty & Justice for All." Must be 18, Void where prohibited, Some restrictions may apply, Not available in all 50 states.
"My intentions are good & earnest & true but under my seat is internal combustion power. Satan is my motor(scooter)"
I reject your reality and substitute my own!
Not only are the voices in your head real...they're accurate too!
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1st July 2009
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Drag Race Champion
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Join Date: Mar 2006
Location: Central Maine
Posts: 376 Sportster/Buell Model: 1200 Sportster/Buell Year: 2000
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I went out and turned the key on and waited a few secs then started. Went for a quick ride and it seemed fine now. Seemed like the speedo cycle thing that toe mentioned.
Thanks for all the responses guys.
Rebil
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