I've been working on a digital readout that will work with a gear indicator switch from a 98 gsxr but it has been slowly moving as my electronics 12 class project had to be turned in yesterday. I have about 2 and a half weeks left of the class so I should be able to finish the proto and design a final. After I get everything layed out and all the bugs worked out I think I should be able to make about 5 of them during Incomplete week at the end of the school year. If anyone is interested throw a pm my way and I'll fill in the gaps, the only thing is you guys would have to find your own gear indicator switch preferably from a 98 gsxr.

Here is the schematic for the LED version. The gray wire in the headlight housing is switched 12V.

edit: wire color gray should read brown.

Hrmm you mind if I follow that schem for a while John?

I just discovered the first problem with my diodes. Gears 2 thru 5 are the same color and at night I only see the one that's lit .  
As a result, I don't know which one it is.  :x  

1st and 6th are a different color so they're no problem.

Otherwise they work great.

That gives me greater incentive to work on the digital readout version. :mrgreen:

I'll build one in a few weeks when I have some free time. Will post it when I am done.

Mike

I did a quick search and found this page to have the gear sensor listed above for about $45:

http://www.alpha-sports.com/spart.php?part_number=37720-45100

Linked from this page:

http://67.15.65.225/spst/1982%20GS300L/24.htm

This thread kinda has me interested, and looks like may be my first mod to my '02 GS that I'm getting in two weeks. I'm currently working on a automotive controller for my car to read out lots of info from various senders. Unfortunately with my job I put it on hold for now. A backlit LCD display would look sharp, but IMO it would be overkill unless you have more info you wanted to see, not to mention pricey for just a gear indicator.

Here's a quick vid of my original project for my car that measured G's (X and Y) and saved the highest values to memory (for a couple AutoCross runs I did).

http://www.flaming-martini.net/thelazydestroyer/pcm/vids/lcdstartup.wmv

Of course lateral G's are of no use for a bike since there's no good way to measure them (since the bike tilts), but you get the idea. Speed, tach, temp, among others could be used. Top row with "Gear....#" and numerical RPM's and bottom row with a horizontal bar graph for RPM's would look nice  

Quote from: John BatesI just discovered the first problem with my diodes. Gears 2 thru 5 are the same color and at night I only see the one that's lit .  
As a result, I don't know which one it is.  :x  

1st and 6th are a different color so they're no problem.

Otherwise they work great.

That gives me greater incentive to work on the digital readout version. :mrgreen:

if the LEDs were put under  1 2 3 4 5 6 in the tach housing the numbers would tell you.

You could always put some black plastic or something under the led holes and cut the numbers out so you don't get confused.  

So is this something people are still working on?  I have an 04 and was thinking the other day that a numerical gear indicator would be great.

So I got to poking around, and wondered first of all if I was looking at the right part, and secondly, if the gear indicator switch from the 82 will work on my 04?  Can someone tell me if Im headed in the right direction? I dont know much about bikes, since this is my first one, but Im all about making what Ive got better and unique. thanks!

replace your sprocket.

Ill need to replace the chain and rear sprocket as well, no?

Hard to tell from the picture what the condition of the chain is.. but if the chain and rear sprocket look anything like that front.. I'd replace em..

Here is what my rear sprocket looks like. I dont know if this helps.

Has anyone tried the Acumen DG8?

so do you have to buy a different nuteral switch for the 04 up bikes and if not how do you tie in to it. also i am building a lcd display like in the fact section

I want it to be clear that this is John Bates ideas and pictures.I will not duplicate his work.Anything I do will be different but have the same operation.John was gracious enough to put in the work and share it with us.I believe he deserves most if mot all of the credit for this invention.






OK.This thread has sit to long without any progress or conclusion.Someone posted that they would like a parts and tool list.I came up with one.These parts can be found at any local or online electronics store.Follow along closely class. 

 


1          Switch/gear position AKA neutral switch Suzuki P/N 37720-45100 replaced 37720-33200   39.68  This is the heart of the system. http://partsfinder.ridenow.com/fiche_select.asp?mfg=Suzuki&partnumber=37720-33200

QTY.      Description

1            6 pin male connector
1            6 pin female connector
1            9 pin male connector
1            9 pin female connector
1            470 ohm resistor
1            50k-ohm linear potentiometer = this will become a dimmer switch for night riding
1            molded knob for 50k-ohm linear potentiometer=if it doesn't come with one
1            Pack of bullet connectors =pack comes with 5 male and 5 female= may or may not be needed=depends on bike and switch
1            Roll of 18AWG aka 18gauge wire = you can buy 1 color in a 40 foot roll or 6 different colors(1 for each light) in 8+ foot rolls=1 color is cheaper,just remember to label the wires
1            Pack of 5 and 1/2 inch wire ties = you need at least 15 and space then 6 to 8 inches apart=you could use auto wire loom to make things nice and give wires extra protection
6            12-16volt LED's with holders or 12-16volt lamp assemblies= they're made in different colors so you could do a different color for each gear
1            8inch by 8 inch by 1/8th inch thick piece of aluminum to mount everything in=this is optional if you aren't planning to mount the lights in the dash or gauges=cut to fit where you want the lights
             

This is a list of tools needed to perform the task at hand.

wire crimpers=this tool is a must and must be capable of crimping compact connectors=PLIERS WILL NOT WORK WHEN DOING THE 6 AND 9( PIN CONNECTORS)=unless you have super talent
wire cutters
electrical tape
soldering iron=you need at least a 40 watt iron to make sure the solder flows into the joint and not just sit on the surface.These are $5 to $10 at Radio Shack
solder= needle thin rosin core solder=can't remember the exact diameter
1/4 inch rachet=for removing sprocket cover
extension for rachet=3 inch is fine
8mm for rachet/extension
#2 phillips screw driver
You will also need tools to remove the fairings,headlight and/or gauges=my gauges and headlight fastners have been changed so I don't know what the factory sizes are
hack saw/file/sandpaper=if you're planning to make a mounting plate for the gear indicator
drill
bits to drill holes for potentiometer and lights=size is dependent on which lights and potentiometer you choose and this varies greatly
dielectric grease for connectors

DISCONNECT THE NEGATIVE BATTERY TERMINAL BEFORE DOING ANY ELECTRICAL WORK ON ANY VEHICLE.

From my understanding the wire inside the headlight,that will power the gear indicator,has a fuse to protect it.If you hard wire straight to the battery use a 3amp blade fuse.The glass tube fusses will not hold up to the vibration and will blow frequently.Remember every time you change gears,the shift drum rotates,grounding a different contact on the neutral/gear position switch,triggering a different light.


I will be building complete systems as soon as I get this first one sorted out.I'm waiting on my neutral/gear position switch from http://www.ridenow.com  I can get most of the parts in bulk from a friend.I don't know if it will be any cheaper.

It cost a LOT more in parts than I thought.This is how it breaks down,if I do it at my cost.This is using off the shelf,full cost parts.I still have to contact my friend about buying in bulk.ridenow.com had the switch priced the cheapest but their lowest shipping rate is almost $9.

$100 with neutral/gear position switch and dimmer= I am going to try to do a bulk buy on the gear switch and other parts
$50 without neutral/gear position switch but includes dimmer
$47 without neutral/gear position switch and without dimmer=dimmer switch is only $2.99
$15 for mount kind like the one in the pic below.
These prices are subject to change if I can get parts in bulk.In other words the price will go down.I hope.I should know Monday.If you would like one of these units please contact me at ben_2_go@yahoo.com Please include GSTwins or shift indicator in the subject and I will make it a priority to read.

you people are 

don't you know the bike well enough to tell the gear from the ratio of speed to RPM?
i.e. "i'm doing 50mph at 5000rpm, i must be in 3rd" or something like that   my guesses are generally correct after riding it for 7 months.

It's good to see someone take this and improve on it. 

Here's a suggestion, I found that if you just arbitrarily take six leds they won't match in light intensity.
So it's best to power them up and match them before building the assembly.

Also the brightness control is a must.  The intensity needed for daytime is way too much for nighttime.



John