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turtle254
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« on: October 17, 2017, 03:56:11 PM » |
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Anybody recalibrated the cable driven speedometer? Mines 5mph fast right now.
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Jonesz
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« Reply #1 on: October 17, 2017, 04:58:23 PM » |
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Wondered that myself. I know that there is a gizmo called the Speedo Healer that cures the woes of a n electronic speedo but have seen nothing to cure my inaccurate cable speedometer on my 99 CT. Seems like Honda wanted to be overly optimistic and incorporate speedo error into their machines to make purchasers think they were going faster than they were actually were. My 2008 VTX had almost the identical speedo error as were all 3 of my friends bikes (all VTX's). For a company that relies on fit and finish this is not acceptable. I was disappointed when I found that the 5% speedo error that was inherent in my VTX was actually a problem they had 10 years previously (and apparently adopted as the norm) when I bought my 99Valkyrie CT.
Joneszy
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Chrisj CMA
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« Reply #2 on: October 17, 2017, 05:02:09 PM » |
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Anybody recalibrated the cable driven speedometer? Mines 5mph fast right now.
So what you are saying is that your speedo is perfectly normal just like all the rest of us. Look at it as speeding ticket insurance |
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The emperor has no clothes
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« Reply #3 on: October 17, 2017, 05:10:25 PM » |
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Wondered that myself. I know that there is a gizmo called the Speedo Healer that cures the woes of a n electronic speedo but have seen nothing to cure my inaccurate cable speedometer on my 99 CT. Seems like Honda wanted to be overly optimistic and incorporate speedo error into their machines to make purchasers think they were going faster than they were actually were. My 2008 VTX had almost the identical speedo error as were all 3 of my friends bikes (all VTX's). For a company that relies on fit and finish this is not acceptable. I was disappointed when I found that the 5% speedo error that was inherent in my VTX was actually a problem they had 10 years previously (and apparently adopted as the norm) when I bought my 99Valkyrie CT.
Joneszy
Every bike I've owned has been this way. Yamaha, Honda, Suzuki, Kawasaki all. It's never really bothered me, I seldom worry about my speed unless I see a cop. |
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WintrSol
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« Reply #4 on: October 17, 2017, 05:30:33 PM » |
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Wondered that myself. I know that there is a gizmo called the Speedo Healer that cures the woes of a n electronic speedo but have seen nothing to cure my inaccurate cable speedometer on my 99 CT. Seems like Honda wanted to be overly optimistic and incorporate speedo error into their machines to make purchasers think they were going faster than they were actually were. My 2008 VTX had almost the identical speedo error as were all 3 of my friends bikes (all VTX's). For a company that relies on fit and finish this is not acceptable. I was disappointed when I found that the 5% speedo error that was inherent in my VTX was actually a problem they had 10 years previously (and apparently adopted as the norm) when I bought my 99Valkyrie CT.
Joneszy
Every bike I've owned has been this way. Yamaha, Honda, Suzuki, Kawasaki all. It's never really bothered me, I seldom worry about my speed unless I see a cop. And that's when I check the GPS reported speed.  |
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98 Honda Valkyrie GL1500CT Tourer
Photo of my FIL Jack, in honor of his WWII service
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Roidfingers
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« Reply #5 on: October 17, 2017, 05:39:40 PM » |
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I never look at mine. Unless I'm topped out. I go by traffic and road.
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indybobm
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« Reply #6 on: October 17, 2017, 06:31:06 PM » |
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Chances are that if you get the speedo to be right on, the odometer will be off. Most odometers are very accurate.
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So many roads, so little time
VRCC # 5258
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Tfrank59
Member
Posts: 1364
'98 Tourer
Western Washington
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« Reply #7 on: October 17, 2017, 09:45:41 PM » |
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Wondered that myself. I know that there is a gizmo called the Speedo Healer that cures the woes of a n electronic speedo but have seen nothing to cure my inaccurate cable speedometer on my 99 CT. Seems like Honda wanted to be overly optimistic and incorporate speedo error into their machines to make purchasers think they were going faster than they were actually were. My 2008 VTX had almost the identical speedo error as were all 3 of my friends bikes (all VTX's). For a company that relies on fit and finish this is not acceptable. I was disappointed when I found that the 5% speedo error that was inherent in my VTX was actually a problem they had 10 years previously (and apparently adopted as the norm) when I bought my 99Valkyrie CT.
Joneszy
Every bike I've owned has been this way. Yamaha, Honda, Suzuki, Kawasaki all. It's never really bothered me, I seldom worry about my speed unless I see a cop. For me it's been every vehicle I've owned, unless the wheels are larger than stock, the speedometer reads a few miles over actual. It is deliberate on the OEM's part to keep us honest. |
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-Tom
Keep the rubber side down. USMC '78-'84
'98 Valkyrie, ‘02 VTX 1800, '96 Royal Star, '06 Drifter, '09 Bonneville, '10 KTM 530, '04 XR 650, '76 Bultaco, '81 CR 450, '78 GS 750...
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Hooter
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« Reply #8 on: October 18, 2017, 03:20:07 AM » |
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Cable speedo, no. As long as you know it there shouldn't be a problem.
Come to think of it,,didn't you used to be able to change a gear(s) in cable speedos?
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« Last Edit: October 19, 2017, 05:14:27 PM by Hooter »
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You are never lost if you don't care where you are!
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h13man
Member
Posts: 1750
To everything there is an exception.
Indiana NW Central Flatlands
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« Reply #9 on: October 18, 2017, 06:44:09 AM » |
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My standard is about 2mph. faster @ 60 mph. My 08' 1100 Spirit, 7% thru the whole range.
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98valk
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« Reply #10 on: October 18, 2017, 08:19:18 AM » |
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u don't state which model u ride. std/tourer runs speedo off of the front wheel, not sure about the I/S. since nobody makes a tire the same OD size as the original OEM tire, it will be different per each brand/size tire used. I run a 130/90-17 rear on front. this puts the ODO spot on (OEM tire caused it to be 2/10ths less) and the speedo 5 mph off. so like u I put it on 80mph and I know I'm doing 75mph. This is consistent all the way to 25mph. I rather have the ODO spot on and know the 5 mph difference which is easy to absorb with a quick glace of the gauges.
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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John Schmidt
Member
Posts: 15211
a/k/a Stuffy. '99 I/S Valk Roadsmith Trike
De Pere, WI (Green Bay)
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« Reply #11 on: October 18, 2017, 08:34:10 AM » |
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u don't state which model u ride. std/tourer runs speedo off of the front wheel, not sure about the I/S. since nobody makes a tire the same OD size as the original OEM tire, it will be different per each brand/size tire used. I run a 130/90-17 rear on front. this puts the ODO spot on (OEM tire caused it to be 2/10ths less) and the speedo 5 mph off. so like u I put it on 80mph and I know I'm doing 75mph. This is consistent all the way to 25mph. I rather have the ODO spot on and know the 5 mph difference which is easy to absorb with a quick glace of the gauges.
The I/S also runs off the front wheel but uses the Hall effect via a magnetic impulse to drive the elec. speedo. The I/S can be corrected via the Speedo Healer, I used an I/S pickup on the 1200 I'm restoring(uses the same type pickup as the Valk) and a Healer set to match my GPS. I installed an aftermarket gauge in place of the big uglies it came with and it has digital readouts. As for the cable driven speedos on the Tourer and Std., accept it as is 'cuz it will change with every new tire. |
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revks
Member
Posts: 13
Lacey, Beacon, Eddyville Iowa UMC
Eddyville, Iowa
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« Reply #12 on: October 18, 2017, 06:40:19 PM » |
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It is possible to calibrate mechanical speedometers by repositioning the indicator/needle on the spring loaded shaft. The margin of error for odometers is very small but for speedometers it can vary a lot as long as it reads faster than the actual speed. Most speedometers on metric bikes run 4-8 mph faster than the actual speed.
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If you waited until there is nothing left to do but pray, you waited too long!
2000 GL1500CF (Mine)
2012 Can Am Spyder Limited (Hers)
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turtle254
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« Reply #13 on: October 19, 2017, 07:08:58 AM » |
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How do you get it open to do that?
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Paladin528
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« Reply #14 on: October 19, 2017, 09:31:11 AM » |
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only 5????
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Chrisj CMA
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« Reply #15 on: October 19, 2017, 06:25:05 PM » |
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How do you get it open to do that?
You have to basically cut it or break it to get in there |
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Jess from VA
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« Reply #16 on: October 19, 2017, 06:49:34 PM » |
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All Japanese bike speedos are intentionally 5% off, higher/faster than actual. This has long been a safety net against the big fines (or loss of import rights entirely) that can result for America imports if they are lower/slower than actual (causing people to speed in ignorance).
This is why the speedos are only off a small amount at lower speeds, but increase at higher speeds.
IE:
At 35mph actual, the speedo will show 37.
At 70 actual, the speedo will show 74.
At 120 actual, the speedo will show 126.
But the odometers are supposed to be accurate, and not 5% off.
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revks
Member
Posts: 13
Lacey, Beacon, Eddyville Iowa UMC
Eddyville, Iowa
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« Reply #17 on: October 20, 2017, 02:46:06 PM » |
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It was a lot easier on the 1983 Yamaha Venture. It had more of a car like dash unit that you could take apart easily. I haven't tried to take the Valkyrie one apart yet but if someone can build it I can take it apart.
Putting it back together is a different matter, and I claim no expertise in that area.
Calibration by moving the needle on the shaft is delicate work and in some cases the patient does not survive the procedure.
All that being said it can be done; it is just a matter of whether you want to take the time and risk involved. I'd rather just ride. Life is too short to fret over a speedo that is a few mph off.
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If you waited until there is nothing left to do but pray, you waited too long!
2000 GL1500CF (Mine)
2012 Can Am Spyder Limited (Hers)
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cookiedough
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« Reply #18 on: October 22, 2017, 08:28:09 AM » |
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I think it is a good idea to leave alone since my 69-70 mph at around 3000 rpms is around 65 mph in a 55 speed zone, probably fast enough to get pulled over where I live, but so far have not. Most all times riding I catch up to traffic ahead of me doing 69-70 mph on the speedo on the Valk so know they are going say really 60-62 mph me being 65 mph give or take 1-2 mph. I find in 5th gear the sweet spot for passing is near 70 mph on speedo at 3K rpms since has good passing power pickup at that speed with traffic ahead doing 57-60mph which is still OVER the posted 55 mph speed limit. Much below 60 mph on the speedo in 5th gear trying to pass is a little sluggish or should I say NOT as fast as I would like it to be if oncoming traffic is coming at me way up ahead from the other lane while passing.
Just compensate in your head doing 5 mph over speed limit on speedo and you will be fine
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