I don't know if it's just me, but very rarely when I go for a ride, the entire time the engine feels lumpy, or loaded with more vibration than normal. This happened yesterday on a 50-60 mile ride. Power seemed there but seemed almost like the throttle body sync was off or something. Best I can describe it is a lumpiness similar to trying to use too high a gear for the rpm's. Rode it again this morning to work and all was just fine again.
I can't recall or not if I started it and let it warm up for a bit when it demonstrated these symptoms, but I am sure this morning I did. I was wondering if maybe the ecu got a funny reading when starting and taking off right away. Almost like the tps sensor was misread at startup or the lambda fuel mixture was horked.
Anyone else seem to experience this?
Yes I experience this regularly and yes it drives me crazy.
The symptoms as I interpret them are that the firing order of the two cylinders is a little out of sync, or timing is retarded, making for that "lumpy" feeling.
It definately makes the bike harder to ride - more gear changes, less usable torque, lots more vibration, although fine at high rpm.
Then, next morning, with nothing different, it purrs like a pussy cat
I've been working on it for a couple of months now and have only the following insights to offer:
* It's more likely to occur in cold wheather.
* It's more likely to occur if ride away without a good warm up.
* It's VERY likely to occur if the DTC kicks in while cold.
* Disconnecting the battery and/or resetting to factory defaults makes no difference.
The DTC point is the most interesting as that's where it all started.
Went into a corner one day with good lean, added some throttle, DTC starts flashing, bike splutters along somewhat exagerated for the bit of juice I gave it - bingo bike shows same symptoms all the way home.
Switching off DTC does nothing to help.
Took it to the dealer who said Ducati refuse to look at DTC issues if the tyres are not original geometry, and unfortunately my rear tyre is 190/50 instead of 195/50.
Now I ride without DTC at all, but still have the random lumpy performance, and I'm not even sure if the two problems are related