speedo fixes?

O

OB_robh

Registered
Hey folks, I can't believe this technology has been around since the GSXR750 and nobody has come up with a remedy - short of the Ausie recalibration plugin I've seen a few posts on...
Has anyone heard/have any setups for correcting the speedo after a gear change? I haven't pulled the front sprocket cover off mine yet so I don't know what lies behind but I've been told that the 750 sensors may fit. You could use the older models sensor setup and stock gear that I think is a 16/43 gear. It's rear tire diameter is pretty close to ours and though I think that choice of gearing is a little steep for me I'm curious if anyone tried this setup too.
 
Hi Robh, yes the problem has been around for a while, and no, no-one has a solution that I know of. That is why my firm have spent a lot of time and money over the last few months developing a product to fix the problem.

With some luck the units will be available for sale within a number of weeks, check our half finished web page at
www.ezy.net.au/~fastvid
for the latest news.

Part of reason modern bikes have this problem is that the speedo instrument (gauge) is made in batch quantity to manufacturer's spec for each batch of new bikes.

With the electronics manufacturing nowadays, they can order the speedo instruments "set" to a certain ratio to suit each bike. Often by the time the bike gets approval and hits the road in each country it has different tyres or gearing, so the speedos are all out from 2% to 6% typical. The Suzuki speedos are excellent quality and accuracy - they are all out by the same amount - probably due to a last minute "executive decision" regarding tyre make and size...

Here's the crunch. Because they are made with a "set" ratio, the internals of the instrument have very little adjuctment, if any. Some models have a small "trimpot" screw but will only give maybe 2% adjust.

If you have a Suzuki with lowered gearing your speedo error could be as much as 10% fast or more. My '99 model TL1000R (current test bike) measured at 9.75% fast.

There is no easy fix involving the sensor or sprockets, as the Suzuki system uses a countershaft (front sprocket) rotor with four poles - gives four pulses per revolution. Your suggestion of using a sensor off a GSXR750 would not work, unless you use the speedo off the '750 which is calibrated for that gearing. Remember the '750 speedo is about 5% out with the stock sprockets and tyres anyway!

Our unit adjusts +/- 25% ratio, in very fine steps (1/40th percent).

In case you were wondering, rear tyre wear from new to bald can be as much as 2% speedo error also. On our test unit I am adjusting the ratio as the rear tyre wears, and keeping the accuracy within 0.2%.
 
99TRL,

Thanks for the insight. How does initial calibration get done - is there a ratio/adjustment guideline is it done by or trial and error? Please email me as soon as you have something shippable.

rob.halsted@sterling.com

Rob
 
99trl, was it your firm that notified me and said they would be sending info to include me on there list of people they wanted to use on there survey? if so, i'm still waiting.
 
Yes Frank, that was us. We are very busy at the moment with the last stages of production, and will notify the tester applicants of the final selection shortly.

Just hang in there! The demand for this product has been good, and we want to make sure the final production is not rushed.
 
Sorry Robh, somehow missed your question!

The adjustment is made by setting switches on the unit, which then compensates by ratio.

If your speedo is 10.3% fast, you set the switches to 10.3% and it does the rest.

As for a guideline, you can calculate speedo error that has been added by changing sprocket sizes, see the calculator on our web page (address in post above) - BUT you will find that tyres affect the ratio too, or maybe your stock speedo is different to other 'Busas so what works for them might be different for you.

The best way is to measure it. I like to do it on a freeway with measured 5 miles (for instance), just stop at the first sign, set your trip meter back to zero, ride at a normal speed (without wheel spinning!) and stop and check your trip meter at the 5 miles signpost. You can even gently roll past the signpost until the tripmeter clicks the next 0.1mile, I do this for fine accuracy testing.

If your trip meter reads 5.5 miles, your speedo is 10% fast. Not hard to calculate. Hope this answers your question.
 
99TLR,

I have no less then 4 people wanting these and a dealer that wants several as well, lemme know.

Rob
 
Sorry guys, I know everyone wants to see them for sale as soon as I do!

The design work is finished, the prototypes have been tested well and work great, now we are waiting on the first batch to be finished manufacturing - of which close to 50 will be shipped out to the people who have applied to test them on their own bikes.

We DO have enough 'Busa testers!

There is a price on our half-finished web page (see post above) and believe me, as soon as they are ready for sale I will contact "bigdog" who runs this board and discuss a special price deal for the 'Busa owners.

Please be patient guys, will be a few weeks tops. Even harder for me, I have spent the last six months of my life working hard on this project - you can imagine how keen I am to see the units on all your bikes!
 
Hey 99TLR, looks like you need someone to do a web page for you guys.....right now your page sucks..... Be more than happy to help with a page, or become a USA mirror for your site once you get it up and running.

I think I may go back to stock gearing just to have a speedo, it's either that or put my Garmin GPS on the bike.... it works great.
 
99tlr:
if i remember right you ask for about four busa owners from differant regions to test your product. you said that you guys would be sending out proto types in the near days.
i think that was close to two months ago.
i know that somebody from your firm e-mailed me to say that i would be one of the four people to do this test. i ask you about it over a month ago and you said that the rest of the info would be coming shortly. i'm not putting you or your firm down (if you think i'am then i'm sorry) i just figured that when somebodies asking for help they would be a little more prompt....
 
To Frank Adams - I appreciate a healthy amount of scepticism, but I assure you that nobody is getting their leg pulled. I have been posting on the TLR message board for around a year now, and I have helped many people there with technical problems regarding the on-board electronics of the TLR. Our firm has never offered a motorcycle related electronic product to date, we own three stores that specialise in service to electronics equipment, ranging from VCRs to high-tech industrial control equipment, and our manufacturing has been strictly one-off specialised test gear and such.

I have a speedo converter test unit working in my bike, which has been run tested now for many weeks. The hold up at the moment is related to the manufacturing of the circuit boards for this project. The unit is miniaturised to 3x2 inches, and since it contains an on board microprocessor the board is a complex mass of extremely fine wiring. There are only a handful of board manufacturers that can make boards of this type and size for a reasonable price and we are currently waiting to receive the boards.
We have good access to componenet supply so I do not anticipate any major delays there.

Frank, I know you are a respected and regular member of this forum, if there are any technical questions you would like answered about our product please don't hesitate to email me.

To Jeffw, thanks for the constructive criticism(!) ha ha. Obviously our field of expertise is in electronics, not web page programming! Thank you for your offer, email me with more information and I will put it before the partners. Things here are quite hectic, we have our existing successful line of work with specialised electronics, and no end of interest in this new speedo converter project. Just answering email and occasionally checking forums takes up too much of my time as it is. I agree our web page needs much refinement, but the main focus of our energies is in the completion of manufacturing.

As again, any technical questions regarding our product please post here or email me.
 
99TLR, I did put it blunt, just stating the facts about the web page. I'll send you e-mail on a mirror site. No offense intended
 
i'm sorry for all the confusion...
i just assumed that when you went public, you had proto types ready in hand to use for testing.

maybe i'm wrong but now it looks like your waiting for the actual product to come from the ones that are already in production.

so what i don't understand is why would you want to test something that your already in the production stages to sale to the aftermarket.

i was led to believe that you wanted to test proto types and make it the best before it went into production to be supplied to the aftermarket.

i'm just here to help and all i've got to go on is what you've printed in the past.
nobody has kept in contact with me to let me know what the status was on any part of the prodject.

thats why i posted what i did.
i just wanted to know where are you at?
whats up? are you still wanting help?...and those kinds of things.

nothing meant to go out in a bad way.
sorry for the misunderstanding.

......frank adams....
suzukinos@aol.com
 
Thanks guys, there was never any offense taken, Jeffw, and I will pass-on any suggestion you might have about how to improve our page.

Frank, if I originally emailed you to tell you that we would send a unit, you are still on the list. It seems everything takes longer than expected when manufacturing a new product, but let's hope our product is out before the ZX-12! (joke!)

Seriously, I did post that the test units would be ready in September, but I am now worried it might even be early October. Nobody here is slack, Frank, maybe just a little optimistic when believing our suppliers...
 
I'm sure they have selected the 4 busa owners, the rest of us will be waiting for the next couple of months no doubt.
 
How many of us waited for our bikes, and then we waited for Yoshimura pipes, and then Power Commanders, exhaust gaskets, gel seats, corbin seats, Micron pipes, Akrapovic pipes, replacement BT56J's, higher windscreens, No2 kits, carbon fiber goodies, replacement wheels, and the truth is we still are waiting for some of these products.

Owning a Hayabusa in 1999 is an excercise in patience.
For the new owners of the Y2K Busa's, we have plowed the fields and by the time those owners recieve their bikes the aftermarket should be a great harvest.

TLR99 you just do what you do and we will still be there, I'm sure. Your generous offer is still good as you just posted, so we will just wait.

Has anyone seen a ZX12 aftermarket pipe yet, Y2K will be a lot more fun than you think.
 
well thanks for the info....makes me feel better. have something to go on now....

i'm going to have two differant engine combo's with my bike. will that make a differance with your product? one will have efi and the other will have carb's and a ignition box.
 
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