HELP: Baron Tachometer Needle jumping issue

[johny125]

Hi all,
I put a Baron aftermarket tachometer on my dual fire 03 Husky and am having a problem with the needle bouncing at all RPM's. It also appears the tach is not accurate over 3000 rpm's. I have hooked the tach directly up to the coil, and directly to the BD tach pigtail. The tach still bounces. I tried it with the tach adapter and that didnt work either. I searched the internet and tried to add a resistor to the line (10k and 100k), add a diode, and add a capaciter all to the tach line. Nothing worked. Baron tech dept was no help either, they said huh, we never tested the tach on BD's, it must be incompatible with your ignition system.

Does anybody have any ideas what the problem might be? Does anyone think a tach filter might help? I am at wits end and hate to send the tach back since the mount is so well designed. Thanks in advance. John

 

[pknowles]

Google baron tachometer and you will find out that you aren't the only one having this problem.

 

[francoblay1]

OMG

http://www.bigdogbiker.com/forums/search.php?searchid=2076213

Sorry Mate... I would suggest you get in touch with some of the Techs in here, PM them if you don´t get a reply in this Thread (they are pretty busy and do not read everything posted) :up:

 

[bearman]

first, do you have resistor plug wires? in not, then you need them.
Second, if you already have resistor plug wires make sure you have a good 12.8 volts to the tach and it should work connected directly to the negative side of the coil.

All a tach does is count how many times the coil fires, so there should be no comaptbility issues.

 

[BigDogBro1]

Run your ground directly back to the battery post.

 

[Sven]

Here we go back to some off the wall, throw this at it. Theory says the coil is a constant, right? Every coil has a said resistance, said volts shot out the spark wire, etc. It's a wave of electricity and there are a lots of communications down the line kind of things that get bumped in the way, still are in an electrical balance, right?

Try to upset the wave or clean up the wave by running another wave at the tach. A ferrite bead kind of inline with the wave and send a cleaner wave to the tach. That's watt it's looking for. Coil sends out what kind of wave out the wire? The tach works with a set wave so the needle doesn't bounce. So the tack works, no shorts, the coil works, the wave is the problem, right?