Benelli sei 750
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Thread: Benelli sei 750

  1. #1
    Junior Member
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    Benelli sei 750

    Went out for a run and the charging light came on, started to misfire as well, the light will go off if the revs are high, any ideas?

  2. #2
    Senior Member
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    Cam Douglas
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    Yes. I reckon it's not charging properly.

    I have a 900 Sei. Other than the alternator being in a different location, I think the charging system is similar to the 750.

    Seems your alternator output is reduced, but not failed altogether. A total failure is preferable in some ways because it's usually caused by something simple such as a blown fuse or disconnected wire.

    Partial failure is not so simple. Possibilities include a shorted alternator winding, blown diode in the rectifier, bad regulator, or something I haven't thought of.
    Only way to find out is to dismantle and test everything.

    The regulator rectifier (on my bike at least) is an old fashioned looking device that's not housed in a finned aluminium case like modern units. You can actually get at its innards and test components (like diodes) individually.

    Only link I can make between a charging issue and a misfire is the battery getting too flat to maintain an adequate spark.
    Last edited by Sprocket; 06-22-2019 at 11:51 PM.

  3. #3
    Junior Member
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    Wiring diagram for 750 Sei

    Hi thanks for that info, does any one have a link to a wiring diagram for my 75’ 750 Sei?. Cheers.Mick

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  5. #4
    King of the Group-Buys Laurencewhite's Avatar
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    Laurence White
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    ron d likes this.
    Laurence

    Benelli Tornado 900 LE No. 49
    Benelli 1130 TNT Titainium
    Benelli 1130 TRE-K
    Benelli 750 SEI
    Benelli 250 2c
    Benelli Motorella



  6. #5
    Member
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    I believe I still have the service manual and parts manual for the 750 sei if you cannot location anything.

    I’d like to have another 750 someday- so I’m keeping that stuff.

  7. #6
    Junior Member
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    Jul 2019
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    750 Sei headlight bezel

    I am looking for a 750 Sei headlight bezel. any help would be great! Thx

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