DUCATI 748 Electric Start Problems! ! Please HELP - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 12 (permalink) Old 03-05-2008, 02:22 PM Thread Starter
 
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DUCATI 748 Electric Start Problems! ! Please HELP

Hi,

If you can help, or tell me what you think i should do i would be very great full, Thanks

I have a Ducati 748 and i am having problems with the Electric starter. It seems ok the first time i use it each day, For example i got it out of the garage today and i started first time, i had a little ride around town, went to a friend's of mine turned it off, then went to turn it on 5 mins later and it didn't start. I have checked the battery that is all fine and the alternator is all working correctly. The alarm and immobiliser are all working correctly to, as i can still bump start the bike when they are disarmed.
The bike has not been used much in the last year, The previous owner said he has never had a problem like this before.
It has only been doing this for the last couple of days. Seems not to start when it is warm?
Any ideas? would really appreciate a reply.

Thanks very much


Lewis
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post #2 of 12 (permalink) Old 03-05-2008, 02:30 PM
 
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check your sidestand safety switch. If you can, find the connector from the switch to the harness. Jumper the pins on the harness and see if the bike starts.
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post #3 of 12 (permalink) Old 03-05-2008, 04:16 PM
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You say you checked the battery. How did you do so? Did you check the voltage? It should be about 12.8 with the bike off and high 14's to low 15's with it running at RPM.

You say alarm. What alarm? Can you completely disable it to ensure its not causing anyproblems. Especially so if it taps into the ignition.

As Warped said... I would check the safety pieces... kickstand and clutch switchs.

Then I would also look at the starter solonoid. Depending on your location it could have corrosion on it.

The last option could be something like your crank sensor or other sensor the ignition uses. Sometimes when they get warm they have problems when they are failing.




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post #4 of 12 (permalink) Old 03-06-2008, 12:06 PM Thread Starter
 
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Hi, Me again got it sorted thanks for the help.

On the back of the starter relay there is a 2 pin conection plug, all that had happened is it had come loose, so i smpliy plugged it back in. It is a hard one to spot as you have to take the started relay out o acutally have a look.
Hope this helps someone in the furture.

Cheers
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post #5 of 12 (permalink) Old 04-01-2008, 06:41 PM
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fyi, I have a friend who bought a ducati monster, he tried to jump start at the dealer it and fried some major electronics, it's been in the shop all winter. Fortunately for him the dealer is covering it. I don't know if the jap bikes are the same, but I wouldn't chance it.

I'm ok, the world's all wrong
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post #6 of 12 (permalink) Old 04-14-2008, 01:11 AM
 
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Get your battery load tested it may well be cactus.
The 748's don't charge at idle actually most bikes don't so if you are making a lot of stop start trips with headlights etc etc on you are probally drawing down the battery faster than you are charging it up ie needs to be ridden longer and further at higher rpm.
Check all the leads are tight and in good condition and that the case of the regulator has good metal to metal contact with the frame as this is its primary earth.
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post #7 of 12 (permalink) Old 04-14-2008, 04:43 PM
 
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I had the very same problem. It's an easy fix.

PM me with a phone number and I will walk you through it. It takes all but 10 minutes to fix. It's just easier to explain over the phone than it is to type it out.
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post #8 of 12 (permalink) Old 04-14-2008, 04:44 PM
 
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Never mind. You figured it out.
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post #9 of 12 (permalink) Old 05-19-2008, 11:42 AM
 
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I think I'm having the same problem you were...after driving around for a good part of that day, I parked my 748 for 10 minutes and came out and it wouldnt start. I tried it again like 5 or 6 times and then presto it worked. But then this morning it wouldn't start for the life of it! I'm praying it's something easy like a lose wire...can anyone explain how to take the starter relay out to check the wires?

Thanks,

Sam

I'm having the same problem. After riding for most of the day, I parked my 748 for 10 minutes and it wouldn't start. After 6 or 7 tries to start it, it worked thankfully. But then the next morning I had the same issue, and I haven't gotten it to start since then. Hopefully it's just a loose wire. I'll check when I get home today, but I don't know how to open the start relay...could anyone give me some pointers?

Thanks,

Sam

Last edited by indianaroadracer; 05-21-2008 at 08:16 AM.
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post #10 of 12 (permalink) Old 06-05-2009, 05:55 PM
 
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weird

hi come odd my ducati 748 and it wont start i have put the key in all lightes work but nothing when i press the electric start i have checked all conections of wires all fuses changed the stand safty switch,,,,

the alarm works fine gess the imobilisor does too but how would i find out if it was not onlt thing i can thing of making it not start???
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post #11 of 12 (permalink) Old 05-04-2011, 12:07 PM
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Quote:
Originally Posted by belseyboy View Post
Hi, Me again got it sorted thanks for the help.

On the back of the starter relay there is a 2 pin conection plug, all that had happened is it had come loose, so i smpliy plugged it back in. It is a hard one to spot as you have to take the started relay out o acutally have a look.
Hope this helps someone in the furture.

Cheers
I seem to be having the same problem as you, so I wanted to check my "starter relay" as well... Is this referring to the "alternator"/"regulator" (I'm pretty sure all 3 are synonymous right?)

I've tried checking my owners manual to figure out how to configure these adjustments as you mentioned, but can't seem to find it!
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post #12 of 12 (permalink) Old 05-04-2011, 05:05 PM
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Quote:
Originally Posted by belseyboy View Post
Hi, Me again got it sorted thanks for the help.

On the back of the starter relay there is a 2 pin conection plug, all that had happened is it had come loose, so i smpliy plugged it back in. It is a hard one to spot as you have to take the started relay out o acutally have a look.
Hope this helps someone in the furture.

Cheers
Hey belseyboy, I have the same issue as you, but I wanted to make sure I have the language correct. Is the "starter relay" the same thing as the "alternator"/"regulator"?

I also looked over my owner's manual to figure out how to configure/adjust my bike as you mentioned, but I can't wrap my head around it... Is there any way someone can help me with trying to tweak my 748 like this?

I really appreciate the help!
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