Tach-twitching and going out completely

fouramdesigns · November 04, 2009, 04:27:31 AM

In the low 50's this morning in Nashville, on my ride in to the city, my take starts twitching, and going out all together. Sensor? Roll those suggestions out this morning gentleman.

fouramdesigns · November 06, 2009, 05:02:53 AM

weird, my horn/lights are effecting the twitch. Noticed on the ride in the

Howie · November 06, 2009, 05:41:17 AM

My guess would be either the main relay (called the ignition relay in your owner's manual, #4 on the wiring diagram in back of your manual) or a bad connection at terminal 30 where the relay plugs in, which delivers power to the fuses that power the two circuits in question.

fouramdesigns · November 06, 2009, 05:48:44 AM

multimeter? How much is a main relay?

Duckintime · November 07, 2009, 06:33:29 AM

Id check all the connections, make sure they are tight... esp on the back of the inst cluster

Howie · November 07, 2009, 10:08:12 AM

I don't understand the question "multimeter?", but, yes, one would be helpful and you should have one in your tool box anyway. A cheap Radio Shack digital is fine. I just reread your post. Since the bike does not cut out the relay is not the culprit. I think I had two poste mixed up in my head

darkduc7 · November 08, 2009, 05:22:09 PM

could be a weak battery/charging system. the tach will be one of the first things to go when things start losing adequate power.

fouramdesigns · November 09, 2009, 05:01:25 AM

yeah the battery did lose charge while in the shop, we recharged, but she has been acting a bit goofy. May be time for a new Yusa. Is this the model for my bike:
http://fatbikez.com/yuasa-maintenance-free-motorcycle-battery-yt12b-bs-fits-ducati-motorcycles-except-1098.html

Speeddog · November 09, 2009, 08:18:09 AM

That is the correct battery

fouramdesigns · November 09, 2009, 08:43:32 AM

good deal too heh? Cheapest I've found

fouramdesigns · December 31, 2009, 06:55:44 AM

Replaced battery, better. But tach is still not working at lower RPM's, I hit about 2K, and it's working. The twitching when I use the turn signals is gone. So I guess it's a bad sensor, relay.

Speeddog · December 31, 2009, 06:58:33 AM

Any condensation in the gauges?

fouramdesigns · December 31, 2009, 08:44:55 AM

A little.

fouramdesigns · January 04, 2010, 04:32:45 AM

I take it back, tach is out almost always now, and it still twitches with the turn signals.

junior varsity · January 04, 2010, 10:00:26 AM

Go see Alain at Corse.

News:

Tach-twitching and going out completely