Acwell Speedo Tacho Installation

[BrettS]

Thought I had it ?
Earthed back to the battery and found either the orange or grey/blue wire heading into each coil worked very well. It was all calm(no jumping around) and was reading very well. Went for a ride around town and I was very impressed at how well it all worked. Took it out on the high way and at first it was great but then the shift light started coming on at strange times and the rpm needle kept dropping lower and lower no matter what the rpm was
Switched the unit to show the revs on the digital meter as well and it was giving a different readout to the analoge gauge, but maybe acurate reading?
Hmmm. Turned the unit on and off and it went back to normal for a bit before playing up again.
Starting to think the unit is a dud, It did have some indications that not the most experienced put the unit together so I might organise a swap.
I could try it without the resistor now but when it is working then not I doubt it would be that? 

[BrettS]

I wondered when some one would say something about that. It was my first mounting option and yep I did remember to tighten it up before going back on the road, just.
Earthed it back to the battery now and it seems I am getting some interference wrapping the rpm wire around the plug lead. Need to try the other option so have to find the positive to the coil from TCI unit 

[Jonesy]

Hey Brett
I hope your going to tighten up the loose axle clamp nut at the bottom of the forks. I just noticed it in your speedo reed switch photo

[BrettS]

Thanks again Jeff,

I had fitted a new engine earth as you advised. I did then find the original engine earth and it was loose so after tightning that I have two confidents earths on the motor.
This acwell unit has a group of earthing wires which i figure may need to be earthed better, I will check the battery leads and such again as well.
Cheers 

[excess.11]

There s always that possibility of a fault within the unit.
If you have used a ground point other than what i have previously described...........reattach it to one of the areas as mentioned.
Check your earth points on the regulator/rectifier unit..remove the screw and clean the thread and contact points and cables from the main wiring loom.....also the neg lead from the battery to the frame.......and the frame to the engine......clean/scrape all these points and threads to ensure  good continuity.

[BrettS]

Thanks Jeff

"The oil and neutral indicators are negative or ground switched" Whatever that means I guess the XS has that as standard because they seem to be working?

"CDI=TCI"
So I figure if I find the positive wire to the TCI unit I just jack into that?

Edit: I have tried a few different wraps and starting to think it is something else. Others have tried all soughts of different wire setups resistors and the soughts but all seem to have found a fundamental issue such as earth.
My main concern at the moment is the unit looks a little like an apprentice put it together so I hope I don't have a dud. Or it is unsuitable for the bike?

[excess.11]

Try increasing the number of turns of the  wire wrapped around the plug lead.
Any ground or negative points should be done to the main frame.....battery......or to a neg wire already run into the headlight shell from the main wiring loom. These are "permanent "ground points i m talking about....as opposed to "switched" ground points..
Don t ground any wire to the front end / fork area

[BrettS]

Ok Thanks Jeff, that means it should be at the 1.0 setting I believe. That is were I started but was getting very high readings.
It seems others that have had this trouble found moving the earth helped alot. Although it seemed the earth i did on the forks was working very well on a night time ride I see oil and neutral light flickering lightly when they are off so it seems I do have a weak earth. I will get it onto the frame in the morning.
Another solution seems to be attaching the tacho wire directly to the coil (instead of wrapping around plug lead) but I still have not worked out how that is done.

Thanks Jonesy, I had wondered if it could replace the sump plug but had not thought of that 

[Jonesy]

I think this is meant to be water temp but I may have read or figure it could be oil temp if I could find a place to bolt it into the motor?
Hey  Brett
you could drill and tap the sump plug to take the sensor you photo'd

[excess.11]

Brett .............Once per revolution.

 CDI=TCI

The oil and neutral indicators are negative or ground switched.

[BrettS]

Thanks Jeff I had that and that is why I was wondering how many sparks per revolution the xs has.
Ie. does it have a spark on the exaust stroke as well as the ignition stroke ?

[excess.11]

Does this help ?

 How to set engine RPM specifications (numbers of turn per signal)? (Only for models with Tachometer function)  2007-03-21 
1.　Push and hold both MODE & RESET buttons for 2 seconds to go into the unit- setting screen.
2.　It displays KM/H or M/H; press MODE button many times until the tachometer specifications setting screen “RPM SPC-X.X” appears. 　　It means the engine rotates how many turns to output a signal.
3.　There are 4 options: 0.5, 1.0, 2.0 and 3.0. Each press of RESET button changes the 4 numbers in a loop sequence. 4.　Press RESET button until desired number then press MODE button 2 seconds to complete the setting and return to main screen.
5.　Automatic reversion to main screen if no button operation for 20 seconds.

[BrettS]

I just can't get the rev counter to work consistently. Does the XS have two sparks per revolution?
Otherwise all works well. Think I have the speedo pretty close but need to check it.

[BrettS]

Getting close, I found the wire I used for the clock was better suited as the "switch key" wire. This is the one that gives the unit power when you turn the key and that lite the unit up with everything firing now. The clock power needs a wire that is "always on" I haven't found one for that yet and maybe the xs does not even have one and I will need to create it ?
I got the tacho going but it was reading high and unstable so as per instructions when this happens I incorporated a 1 ohm resistor into the line. This seemed better but still seems unstable?
Time to fix all the joins. Put it back together and take it for a run and see what we have.
I think this is meant to be water temp but I may have read or figure it could be oil temp if I could find a place to bolt it into the motor?

[BrettS]

I know Jonesy otherwise I would have been asking for a section of the shed to park my bum  Thanks for the input though.

just how far out of your comfort zone are you in the dark arts of auto electricity.

Hey Fred It is kinda like parachuting for the couch I am so far away from my comfort zone. I have A great auto lecky here but I figure If i want to play with the wires and hide them all just as. Then I better learn to do it myself.
Not going too bad so far, I have indicators high beam and clock going. Need speedo and rpm and I am almost home. I blew a headlight fuse while using the digital meter, not sure how that happened?