Hello New here,
Purchased my first Ducati past February. A fine 06' S2R1000 (yes the amazing swollen plastic tank bike). Well after a couple months of romantic riding. My gauge developed a weird issue. ONLY when i "gun it" or go for a hard pull does the tach offer a false reading once i come back to a stop. So lets say i hit an on ramp for the freeway. Give it a good pull to blow every one away thats out to kill me then exit and come to a stop light. My tach would be a solid 2K off. Idle will be 0 and doing about 40mph will read like 2K. Bike runs fine still and speedo seems to be fine. Cleaned a few connectors. Battery tested 12.5 resting and 14.48 idle with little variation when revved. Tonight i took my dash off. Took the face plate off and just lightly blew it out and dusted it with electronics cleaner in a few place. Put it back on and test road it. Problem is still there but after coming to a stop the tach now reads above. so idle is reading 2-3K. What demon is afflicting my S2R?! Its only after really getting on it. warmed up or not. Thanks for any and all help.
In the automotive world I would look at an RPM pick-up (Distributor, cam sensor, crank sensor ect ect), can anyone shed any light how the S2R's or any Duc for that matter pick up the rpm signal?
If you turn the key off, then back on, does the needle reset to zero, or is it still off?
we i reset the dash after turning the bike off then back on it zeros back out and returns to normality. but im not convinced its a needle issue since it only happens when i give the bike a strong pull.
Quote from: 2WheelsFTW on May 20, 2016, 02:30:35 PM
In the automotive world I would look at an RPM pick-up (Distributor, cam sensor, crank sensor ect ect), can anyone shed any light how the S2R's or any Duc for that matter pick up the rpm signal?
In Magneti Marelli managed Ducati-land, the tach signal sent to the gauge is "filtered" through the ECU. If the ECU had a bad tach signal, the bike would likely exhibit strange running behavior... but it's pretty simple to test. Swap the RPM pick-up with the speedo sensor. If strange gauge behavior switches... there's a problem with the sensor (in my opinion this is highly unlikely).
There are some potential pitfalls in the wiring... check ground wires for resistance/looseness.