Sluggish starter

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Crumpati
Posts: 31
Joined: Mon Nov 28, 2011 8:50 am
model: 907 I.E.
year: 1993
Location: idsvold QLD Australia

Sluggish starter

Post by Crumpati »

Bike I am reassembling at the moment has a sluggish starter. Its always been the case for the past 5 years or so since I purchased it.It always starts, but as you push the button, its almost like the battery is flat as nothing happens and then it cranks over and fires. Its not the battery as I have tried several other known good batteries, with the same result, its more like the starter isn't getting the juice. Any ideas or known issues? thanks.
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Thebenelliman
Posts: 91
Joined: Sun Jan 10, 2016 4:13 pm
model: 907 I.E.
year: 1992
Location: Aston Abbotts,Aylesbury,Bucks

Re: Sluggish starter

Post by Thebenelliman »

It could be a sluggish starter soliniod mine was playing up recently and it was a corroded connection which when cleaned cured the problem. You can also upgrade the large supply cables to the starter as they are undersized and have difficulty delivering the power to the starter!
The Benelliman
1992 907ie
1981 Benelli 900 Sei
1989 Benelli 900 Sei
1976 Benelli 125 Enduro
1981 Benelli 250 2c
1976 Benelli 250 Quattro
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Derek
paso grand pooh-bah
Posts: 769
Joined: Thu Nov 03, 2011 10:13 am
model: 907 I.E.
year: 1994
Location: Scotland

Re: Sluggish starter

Post by Derek »

Mine was always sluggish too. I took it off, cleaned the commutator and replaced the brushes. It made no difference. A few months later the brushes stuck. I had to remove the starter again to free the brushes and make sure they were moving freely. The next year it did it again :mad:
This time the brush on the earthing side had more or less welded itself to the brush holder. So bugger it. I went out and bought a new starter from Electrex. With it fitted the bike has never turned over so quickly, seems like twice as quick.
I came to the conclusion that the original starter must have an internal short in the armature windings causing it to draw too much current and reduce its power.
1994 907ie
2017 Supersport 939
2015 Scrambler Classic
1982 Pantah 500SL (now sold)


Scotland
Crumpati
Posts: 31
Joined: Mon Nov 28, 2011 8:50 am
model: 907 I.E.
year: 1993
Location: idsvold QLD Australia

Re: Sluggish starter

Post by Crumpati »

Good news story, I pulled the positive wire from the battery to the solenoid and the one from the solenoid to the starter. The connections didn't look obviously bad, just a little scaly. Got stuck into them while I was there with a file and wire brush anyway, not expecting anything much to have changed. WooHoo, she cranks like mad thing now, never started like this ever, just touch the button and she is away. Happy days. :thumbup:
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Derek
paso grand pooh-bah
Posts: 769
Joined: Thu Nov 03, 2011 10:13 am
model: 907 I.E.
year: 1994
Location: Scotland

Re: Sluggish starter

Post by Derek »

Good news. It pays to check all the connections first.
1994 907ie
2017 Supersport 939
2015 Scrambler Classic
1982 Pantah 500SL (now sold)


Scotland
User avatar
Thebenelliman
Posts: 91
Joined: Sun Jan 10, 2016 4:13 pm
model: 907 I.E.
year: 1992
Location: Aston Abbotts,Aylesbury,Bucks

Re: Sluggish starter

Post by Thebenelliman »

The wonders of the internet, how people in the Uk can help bikers on the other side of the world. Always glad to help a fellow motorcyclist!
The Benelliman
1992 907ie
1981 Benelli 900 Sei
1989 Benelli 900 Sei
1976 Benelli 125 Enduro
1981 Benelli 250 2c
1976 Benelli 250 Quattro
User avatar
du907
Posts: 337
Joined: Fri Jul 08, 2005 12:00 am
model: 907 I.E.
year: 1992
Location: Winston-Salem, N.C. USA

Re: Sluggish starter

Post by du907 »

I recommend updating your wires. I installed this kit and man what a difference. Bikes kicks off twice as quick as it use to. Saves on the sprag starter clutch and the battery.

https://motolectric.com/
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