Join Date: Apr 2009
Location: Normal, IL, USA
MTS1200 Running Rough
Good morning all. I threw a leg over my still new-to-me '12 MTS1200 yesterday for what I hoped would be an awesome Sunday afternoon ride...
All was good for about 10 minutes. I was riding through town to pick up a friend and when the Multi started riding rough. It was like it was misfiring. Slow speeds were extremely rough and power deliver was way down. When I gave it more gas it would correct itself temporarily. I rode on a little more to see if the problem would correct itself. But after a few blocks that didn't work anymore either. I got on the open road and cracked the throttle and it "tried" to fix itself. It would "surge" for a couple seconds then go back to running poorly. Fuel consumption was way up - I could actually see the gauge moving it seemed. Temps were OK though.
I rode it back home and began diagnosing... The header for the horizontal cylinder was WAY cooler than the vertical one, but I wasn't sure if that was indicative of anything or not, since that header does get way more airflow. I expected it to be hot though. Anyway, I pulled the spark plug and it was very dirty and reeked of gas. I cleaned it up real good and reinstalled it, but the bike was still running poorly.
For some reason, I don't think the horizontal cylinder is firing properly. I'm not an expert mechanic, but I think this points to a bad coil pack. This would explain the rough running, dirty spark plug, and cooler header temps. The bike has right about 10K miles, so it really shouldn't be falling apart...
I found the resistance level in my shop manual for testing the coil pack. I'll bust out the multi-meter tonight and see if that points to the problem.
My main questions: Do you guys think I'm on the right track? Has anyone else had issues with the coil packs on their Multi or other Ducati?
2012 Ducati MTS Pikes Peak - 2012 Yamaha Super Tenere - 2008 Yamaha WR250R