Guys, last night when I was out for a ride on the 998 and the rev counter now and again dropped to 0 when the bike was running fine! Anyone else had this or know of any reasons why? Cheers in advance
Stolen via google: Electronic tachometers give erratic readings when their base voltage is low, usually caused by a loose or corroded electrical connection. Usual suspects: Most likely - Intermittent power or earth connection Next likely - Intermittent rpm signal connection Least likely - Tachometer internal problems Since the bike is running OK, the RPM sensor gap, the sensor itself, and wiring back to the computer are not the problem. So, you need to check all the connectors between the computer and the tach. Check for a loose or corroded electrical connection at the battery, the fuse, and any in-line connector. Remove, clean and tighten the two battery connections first, next the connector at the instrument cluster, then at the fuse, and lastly at the wiring harness connections. If you fail to find a problem, try to borrow a tach to verify that it’s actually the problem, before buying a replacement. *************** http://www.ducatisportingclub.com/archive/index.php/t-13248.html
Hi lads. Haven't personally had the problem with the tacho. Just the temp gauge dropping low which was probably caused by an air lock. Haven't had time to dig any deeper into the problem and engine's coming out over the winter anyway... Cheers, ian
I had this on my 916 many many yrs ago, but Im damned if I can remember why or how I resolved it. One shall have to do a deep mind search...good luck. I'll post if I can recall.
I had same problem with electronic tacho on my SSie. The socket for the plug worked loose on the pcb inside and needed resoldering. Theyre a sealed unit, I had to cut casing in half to repair it.
I have a rev counter light set in a carbon dashboard on my 998, and this causes the rev counter to fluctuate when the battery gets slightly low on power. If you have anything connected to the rev counter which takes current away then this can cause problems. Most of the more obvious points have been covered but any drain on the tacho could be worth a check along with the points mentioned above. It could be something as simple as earth\connection problems but if nesessary look beyond the immediately obvious to eliminate other possibilities. The rev counter is quite susceptible to fluctuating levels of power from what I have witnessed.
Had a similar problem on mine quite a few years ago, rev counter just stopped working quite randomly and I seem to recall the indicators also (not totally sure as it was quite a long time ago) and it was all down to one of the two small black relays down by the clutch. They're well known to just stop working and it's a cheap. and easy replacement to try before going deeper into things. I always carry a couple of spares on the bike having had problems with them on more than one occasion.
