S4 Won't Start with New Battery

[NapoliMonster]

I'm new to this forum and Ducati's in general so if someone could point me in the right direction that would be awesome

I have a 2002 Monster S4 that I park in a storage unit. As a result the battery died so I bought a Ballistics lithium ion battery. Hooked it up and the bike won't start. I hear the bike trying to start and I can see the clutch rocking back and forth but it just won't start. I've tried every combination of clutch/kickstand/neutral I can think of. The shop I bought the battery at said it was over 13 volts. What am I doing wrong?

[AndyB]

Sounds like a fuel problem if the bike is turning over.


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[tripod]

Do you hear the fuel pump prime?

Have you checked all your fuses?

Is your run button on?

[NapoliMonster]

I think so...is that like the high pitched noise I hear? How do I locate the fuses? Run button is on.

Here is a video of what is happening, hopefully this will help:

You Tube

You Tube

[tripod]

OK, this is basic, but you do know you only have 15-20 seconds to hit the start button after you turn the key on, right? Otherwise the ecu shuts down.

[NapoliMonster]

Originally Posted by tripod

OK, this is basic, but you do know you only have 15-20 seconds to hit the start button after you turn the key on, right? Otherwise the ecu shuts down.

Actually I didn't know that. But I'm pretty much trying to start the bike immediately after turning the key on. Also, I figured out how to check the fuses and I don't see anything blown.

[MashBill]

After watching your video, it looks as if the engine is not turning over. Are you "pulsing" the starter switch? When I hit the starters on my bikes, the clutches spin, they don't rock back and forth.

[NapoliMonster]

Originally Posted by MashBill

After watching your video, it looks as if the engine is not turning over. Are you "pulsing" the starter switch? When I hit the starters on my bikes, the clutches spin, they don't rock back and forth.

No, I'm holding down the starter button and it's doing the pulsing on its own

[tripod]

get a multi meter and check voltage yourself.

both at rest, and while cranking.

[LoBuk]

You have one of two problems.
a. The new battery, although new does not have enough power to crank the engine over.
2. The spring in the starter sprag clutch is shot and as a result is not allowing the starter to properly engage the crank and turn the engine over.

I'm going to go with this option because the video you are showing is nearly identical to what mine was doing this past fall. The well documented inexpensive repair is to pull the alternator cover, remove the sprag clutch and replace the spring that holds the weights in with the spring out of the following oil seal, CR 19778. The procedure is covered on other Ducati forums and the actual procdure for replacing the spring is also covered on Triumph forums as well as they have this issue too.

Z