Question about 2003 Ducati ST4
From the solenoid to the battery. And also connected a new ground. I left the original ground cable in place and connected the new one to one of the bolts in the clutch cover. After measuring with a multimeter this was the best one I found. I used 16 mm thick power cable that's normally applied in cars. Twice as big as the stock wiring with huge connections for maximum contact. When I tried to start the bike it fired up like never before. Waaauw. Measured the battery voltage at 3000 rpm and read 13.7 V on the multimeter must be enough. I didn't bother to measure the regulator, cause the charging system seems to be working just fine. Took the bike for a spin around the block, stopped, shut it off and started right up again. Before the cable transplant , even getting it started with a warm engine was a hassle. Now you can really hear the starter click without effort. Also tested at high speed/revs, the rev needle doesn't jump up and down anymore. The dashboard light doesn't flicker anymore. Well, juuuust a little bit, but not more than it should. The clock didn't jump to 00:00 anymore. So I guess the faulty ground, corroded connections and the original wires were causing most of my problems. Luckily I have a week off from work next week, so I got all the time to test the bike. I even think I'll put the fairing right back on tomorrow morning, if the bike starts at first attempt after a cold night in the garage. It's sure a good test to build my confidence back up. Quite important if my bike should get me to work every morning. Thanks again for all the advice guys. I hope I'll still have good news in 3 or 4 days, after I properly tested my red fury. For everyone else who has read this thread. Keep your connections clean and change your stock wiring to bigger wires even if you don't have starting problems (yet)!,It does sound like the battery may not be holding it's charge very well. If it's not very recent it may be due for replacing. A 10W40 oils should be ok for both winter and summer and is what is specified by Ducati for temperatures down to -10C. Although a 5w40 might give the starter an easier time, I suspect that the real culprit is the battery.,,,
Posted on Nov 10, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 10, 2008 | 2005 Hartford Legion HD-150L
Nov 10, 2008 | 1999 Ducati ST 2
Nov 10, 2008 | 2002 Ducati 998 S Bostrom
Nov 10, 2008 | 2002 Ducati 998 S Bayliss
Nov 10, 2008 | 2002 Ducati 998 R
Nov 10, 2008 | 2002 Ducati 900 Sport
Nov 10, 2008 | 1990 Ducati 750 Sport
Nov 10, 2008 | 1985 Ducati 750 F1
Nov 10, 2008 | 2006 Aprilia Leonardo 300
344 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: