Starter Motor Failure

Mar 2015
18
2
Australia
Hi,

Seems the starter motor has failed, has 12.5v at the starter when you push the starter switch, so all good with the battery etc, was slowly cranking but now nothing unless you give it a tap. (The starter was also replaced under warranty for the slow cranking/hard starting issue) Anyway, any recommendations what type/where to purchase a new one? Any experiences of what not to buy? Nothing in Australia except genuine from what I can see, some listed on ebay from OS but not sure if any good.

Thanks,

WH
 
Sep 2017
290
3
Lansing Mi
Buy a Denso unit. The one that came on the bike was mostlikely an inferior starter as they switched supplier. There are many threads taking about slow cranking and starter failure and they all recomend making sure you install a genuine Denso starter .
 
Mar 2015
18
2
Australia
Thanks, it was replaced with the Denso unit under warranty.....I think i just have bad luck with this bike, its just been nothing but trouble...but great to ride. Quoted $750 for the starter and $140 for the starter clutch, nil stock from the local dealer. Has to come from Italy.
 
Jul 2019
1
0
Germany
When the starter is allrady replaced, check the connecting points for resistance, dirt or damage. Maybe a mechanics failure.
 
Mar 2013
2,348
6
Naples, IT
Unfortunately, it's a tough job if you're hesitant about cracking open the left side of the engine...I rank the starter servicing steps just under their design theory about having to remove the fuel tank to replace the air filter. Also, plus one about the lead and points. The lead wire sits exposed right behind the front tire and mine was heavily corroded. I imagine they would have cleaned this up when replaced under warranty, however.

But it's not worth $1000. If you have a weekend to spare and it's not your sole mode of transportation, buy the Denso (be sure it has new bolts and check for new gasket included) in the "slow cranking" thread and give it a shot. It's not fun and I had the worst case scenario with a gear spline falling out when I pulled the case apart, but definitely DIY if you've ever maybe replaced a clutch or transmission on a car.
 
Mar 2015
18
2
Australia
Thanks for the reply's, your right its not worth paying $1000, so.....

Pulled the side engine cover off and starter out and apart, engine oil has leaked past the seal and contaminated the brushes and commutator. Have ordered new brushes (From a different model Ducati with Denso starter, looks the same & a new seal, still tracking one down) A good clean up of all the black goo in there and it works on the bench, so after new brushes I think it will be ok.

WH
 
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Oct 2017
50
2
japan
I noticed mine starting to go around 15,xxx kms. So I replaced it with a used Denso off ebay. The motor had about 11k on it already so it was cheap. The seller was a Ducati dealer in EU. I noticed right away the starts were way better and it has been working good ever since. Following the mechanics manual the job wasnt too hard. You will need the crank case puller tool. Everything is straight forward, undo all the bolts on the case, Use the puller tool to pop the case off. When I popped my case off, a small metal spacer out. I wasnt sure where it fell from but later found out it was off the back of the gear that attaches to the starter motor. (see pics). This spindle+gear has a lot of play and moves quite a bit after the case is off, which is normal. But its why the spacer fell out.

On this spindle behind the gear.
 
Mar 2015
18
2
Australia
Saken,

Thanks for the info on the spacer, I'll check and see if its in place. Its been replaced under warranty by the dealer previously so who knows.
 
Mar 2013
2,348
6
Naples, IT
My spacer fell out. Wrote it up with pics in the starter replacement thread. It sucked giant donkey.
 
Mar 2015
18
2
Australia
Checked the spacer, it had fallen out as well, thanks for the heads up. Just as a matter of interest, has anyone else found the starter contaminated with oil, or is just a one off?

Still waiting for the new brushes for the starter motor.

Thanks,

WH