Author Topic: Starter interruptus redux  (Read 3245 times)

Offline herrdrpepper

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Starter interruptus redux
« on: October 11, 2015, 10:21:30 AM »
Took a beautiful fall ride through the Hocking Hills in central Ohio yesterday morning.  After breakfast,  the 2008 Norge would not start...classic starter interruptus symptoms.
I did the repair a couple of years ago...no problems until yesterday.  Did my diagnostics and found the 15 amp fuse in the repair wiring had blown.  Replaced it with a 20 amp fuse. [thanks for the spare, Luigi].  All is well now, however,  I am unclear if it's safe to leave the 20 amp fuse in the circuit or should I replace it with the 15amp?  Your thoughts and advice appreciated.
Tom
'74 V7 Sport
'74 Norton, John Player
'98 Ducati ST2
2008 Norge

Offline Wayne Orwig

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Re: Starter interruptus redux
« Reply #1 on: October 11, 2015, 10:30:18 AM »
Leave to 20 in there.

What did you do years ago for the repair?

If you have a good 'repair', and the solenoid power is going directly from the battery, through the fuse, to a relay, to the starter; then you may need to pull the starter and clean the solenoid. I think that they sometimes get clutch dust in them gumming them up.

Scientist have discovered that people will believe anything, if you first say "Scientists have discovered...."

Offline herrdrpepper

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Re: Starter interruptus redux
« Reply #2 on: October 11, 2015, 11:27:47 AM »
Thanks, Wayne.
Will leave the 20 amp fuse alone.
Repaired just as you described.
Will do a "dusting"
Tom :thumb:
'74 V7 Sport
'74 Norton, John Player
'98 Ducati ST2
2008 Norge

dan407

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Re: Starter interruptus redux
« Reply #3 on: October 11, 2015, 04:24:34 PM »
Leave to 20 in there.

What did you do years ago for the repair?

If you have a good 'repair', and the solenoid power is going directly from the battery, through the fuse, to a relay, to the starter; then you may need to pull the starter and clean the solenoid. I think that they sometimes get clutch dust in them gumming them up.

Looks like I may be in need of some dusting myself.
I installed the SI  kit a year ago when I was experiencing the no start situation on a 2007 Griso.
Everything was going fine.
Lately I have been blowing the 15 amp fuse about every month or so.
The last time I tried using a 20 amp fuse after reading about it here.
Well the 20 amp fuse ilasted about  a month or so before blowing.
Other than the dusting mentioned here is there anything else that could be causing the problem?

Thanks





« Last Edit: October 11, 2015, 04:27:19 PM by dan407 »

Offline Kiwi Dave

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Re: Starter interruptus redux
« Reply #4 on: October 11, 2015, 05:40:14 PM »
Other than the dusting mentioned here is there anything else that could be causing the problem?

Make sure your battery leads on the battery are clean and tight, plus check the earth strap.  It seems strange, but reduced current capacity going to the starter and solenoid increases the time the solenoid pulls in which in turn gives the fuse a better chance to blow.

Offline Wayne Orwig

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Re: Starter interruptus redux
« Reply #5 on: October 11, 2015, 08:36:18 PM »
Make sure your battery leads on the battery are clean and tight, plus check the earth strap.  It seems strange, but reduced current capacity going to the starter and solenoid increases the time the solenoid pulls in which in turn gives the fuse a better chance to blow.

Just a +1 to this.

It is all about time. If the solenoid does not pull in fast enough, it will blow the fuse. Even a 20 amp may pop. A 30 amp may not, but then the wire would likely start to melt.
So you may need to clean the solenoid, or you may just need to fix a poor battery or battery connection that isn't providing enough power to pull the solenoid.
Scientist have discovered that people will believe anything, if you first say "Scientists have discovered...."

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