Author Topic: Anyone using a shift light?  (Read 3446 times)

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blantonator

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Anyone using a shift light?
« on: September 14, 2007, 07:49:59 AM »
I want to get rid of my gauges, but would still like to know when to shift.  A shift light, BRILLIANT!  Anyone running one or know how to implement one on a bikes setup with a mechanical tach.

Offline cleveland

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Re: Anyone using a shift light?
« Reply #1 on: September 14, 2007, 08:13:42 AM »
A shift light, BRILLIANT!

I've never seen one.  Is it a light that literally says "shift" once you have reached a certain RPM?

Offline 750essess

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Re: Anyone using a shift light?
« Reply #2 on: September 14, 2007, 08:39:51 AM »
Dyna makes one but is rather expensive. http://www.dynoman.net/ignition/dynaShift.html
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Offline my78k

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Re: Anyone using a shift light?
« Reply #3 on: September 14, 2007, 08:58:49 AM »
Wouldn't you need to convert to a Dyna or other ignition system first? I don't suppse there is anything that would work on a points type system...

Dennis

Offline smccloud

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Re: Anyone using a shift light?
« Reply #4 on: September 14, 2007, 09:55:50 AM »
look at a standard mechnical automotive tach with a shift light.  it might be possible to adapt it, but not really sure.

otherwise get a shift light that is designed to be independent of a tach and set it to 4 cylinder mode at twice the rpm you want or set it to 2 cylinder mode (at least i think that would work).
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Offline paulages

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Re: Anyone using a shift light?
« Reply #5 on: September 14, 2007, 10:39:12 AM »
just curious-- where would the shift range be? i find it completely dependent on how and where i'm riding. redline maybe?  ;D
paul
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blantonator

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Re: Anyone using a shift light?
« Reply #6 on: September 14, 2007, 10:47:22 AM »
Essentially a shift light is a bright light that illuminates when you reach a certain RPM.  For instance I could have it illuminate at 9K RPMS.  It should work under the same principle as a electric tach (http://www.sohc4.us/forums/index.php?topic=21640.0)  which im still trying to figure out.  From my readings you can monitor RPMS off a coil.  A homemade one could be made very easily with a PIC microcontroller.

Anyone know the principles behind electric tachs running off a coiL

blantonator

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Re: Anyone using a shift light?
« Reply #7 on: September 14, 2007, 10:53:03 AM »

Offline dusterdude

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Re: Anyone using a shift light?
« Reply #8 on: September 14, 2007, 11:25:54 AM »
try msd
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Offline 750essess

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Re: Anyone using a shift light?
« Reply #9 on: September 14, 2007, 11:27:22 AM »
That gizmo is cool, but it will only pic up the signal not determine what rpm to turn on an output such as a light. here is one that is much cheaper. ttp://store.summitracing.com/partdetail.asp?autofilter=1&part=SUM%2DG2945&N=700+115&autoview=sku
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blantonator

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Re: Anyone using a shift light?
« Reply #10 on: September 14, 2007, 11:55:20 AM »
Where is the coil located on our bikes?

also how does the coil work on a 2 vs. 4 cylinder bike.  If they unit is good for 12K rpms on a 4 cylinder... would that mean only 6k on a 2 cylinder or 24K?
« Last Edit: September 14, 2007, 11:59:05 AM by blantonator »

Offline 750essess

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Re: Anyone using a shift light?
« Reply #11 on: September 14, 2007, 11:58:43 AM »
under the tank, there are two of them. one for 1 and 4 and one for 2 and 3.
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tbone

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Re: Anyone using a shift light?
« Reply #12 on: September 14, 2007, 02:08:25 PM »
I use a shift alarm! When I hear the valves start to float I shift!  ;D ;) 8)

Offline Gordon

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Re: Anyone using a shift light?
« Reply #13 on: September 14, 2007, 02:14:29 PM »
Where is the coil located on our bikes?

also how does the coil work on a 2 vs. 4 cylinder bike.  If they unit is good for 12K rpms on a 4 cylinder... would that mean only 6k on a 2 cylinder or 24K?

After reading this, my instinctive response is to say you need to learn a lot more about your bike before making any changes or modifications to it, and I mean absolutely no offense by that.  I just think you'll be a lot happier with it in the long run because when something does go wrong with it you'll have a better knowledge base to go off of, have a better idea of what has gone wrong, and you won't have to wonder if the problem is being caused by something you inadvertently did to it. 

Offline neil young

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Re: Anyone using a shift light?
« Reply #14 on: September 14, 2007, 02:18:16 PM »
i rarely look at my tach.i can hear the engine and i definitely know when shifting time is.unless your racing it i cant see  wasting the  cash
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blantonator

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Re: Anyone using a shift light?
« Reply #15 on: September 14, 2007, 02:32:55 PM »
Where is the coil located on our bikes?

also how does the coil work on a 2 vs. 4 cylinder bike.  If they unit is good for 12K rpms on a 4 cylinder... would that mean only 6k on a 2 cylinder or 24K?

After reading this, my instinctive response is to say you need to learn a lot more about your bike before making any changes or modifications to it, and I mean absolutely no offense by that.  I just think you'll be a lot happier with it in the long run because when something does go wrong with it you'll have a better knowledge base to go off of, have a better idea of what has gone wrong, and you won't have to wonder if the problem is being caused by something you inadvertently did to it. 

i hear ya, i definetly have a lot to learn, and thats why i'm here.

Offline mick750F

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Re: Anyone using a shift light?
« Reply #16 on: September 14, 2007, 03:41:24 PM »
Where is the coil located on our bikes?

also how does the coil work on a 2 vs. 4 cylinder bike.  If they unit is good for 12K rpms on a 4 cylinder... would that mean only 6k on a 2 cylinder or 24K?

After reading this, my instinctive response is to say you need to learn a lot more about your bike before making any changes or modifications to it, and I mean absolutely no offense by that.  I just think you'll be a lot happier with it in the long run because when something does go wrong with it you'll have a better knowledge base to go off of, have a better idea of what has gone wrong, and you won't have to wonder if the problem is being caused by something you inadvertently did to it. 

   Took the words right outta my mouth...

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Offline jmckinne

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Re: Anyone using a shift light?
« Reply #17 on: September 14, 2007, 03:42:05 PM »
I not interested in a light to tell me when to shift, I listen to the engine for that. I would LOVE an indicator to tell me what gear I'm in though. Knowing when I'm in neutral is OK, but is a numeric indicator to much to ask for? When downshifting with the clutch held in - like coming up to a stop light - I'm always forgetting to count or losing count or counting wrong...whatever. I lose count when upshifting too. All of THAT presumes I remember what gear I was in when I started shifting too. If I was in 1st or 5th...maybe, otherwise not a chance.

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Offline Bob Wessner

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Re: Anyone using a shift light?
« Reply #18 on: September 14, 2007, 03:54:59 PM »
I sometimes get fuzzy about 4th vs. 5th in some siduations, which am I in? Conveniently on my K0, the tach and speedo sort of flip relational positions between the two gears, so that's my indicator.
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Offline paulages

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Re: Anyone using a shift light?
« Reply #19 on: September 14, 2007, 06:18:14 PM »
i sometimes forget if i'm in 4th or 5th at highway speeds, but i just feel upward with my shift foot-- in 4th, there is tension sooner, indicating that i can shift again. if i'm already in 5th, it travels farther and feels different.
paul
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Offline jmckinne

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Re: Anyone using a shift light?
« Reply #20 on: September 14, 2007, 06:29:48 PM »
The 4th/5th thing is what bugs me the most too. Pulling in the clutch and "shifting" at highway speeds only to discover you were already in 5th - sigh. I'll have to try your tension sensing trick paulages.

Offline olds-cool

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Re: Anyone using a shift light?
« Reply #21 on: September 16, 2007, 05:29:25 PM »
It's nice to know I'm not the only one that can't remember if I shifted to 5th sometimes.  ;)

Offline seaweb11

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Re: Anyone using a shift light?
« Reply #22 on: September 16, 2007, 07:49:37 PM »
My wife tells me when it's time to switch gears ;D

I don't have any issues with the bike.

Offline snyquist53

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Re: Anyone using a shift light?
« Reply #23 on: September 16, 2007, 08:20:30 PM »
you could make a shift light out of a mechanical tach but the tach would have to be on the bike.  take the gauge apart and use the internals to establish a electrical connection though the needle at a certain point.  it could be adjusted by using a screw for the contact point for the needle.  one would have to build a hosing and a bracket.  good idea but a lot of work when you can just buy a electronic tach and light.  electronic tachs are smaller more accurate and would probably save you money and a headache in the long run
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Offline jmckinne

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Re: Anyone using a shift light?
« Reply #24 on: September 18, 2007, 08:11:32 AM »
I'll have to try your tension sensing trick paulages.

Well DUH!

Tried paulages's trick and it works great wish I'd thought of that before - highly recommended! I tried it at the other end of the scale too - If your in 1st there is give, if you can downshift there isn't. Again, DUH.

Now we just need something for the 2nd vs 3rd vs 4th area and I'll be happy.

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