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YB6EI alternator replacement

 
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arnie2



Joined: 02 Sep 2019
Posts: 9
Location: Gorae Victoria Australia

PostPosted: Mon Feb 17, 2020 11:41 am    Post subject: YB6EI alternator replacement Reply with quote

My YB6EI has stopped charging. The alternator rotor coil windings seem to be open circuit. I have purchased a replacement alternator on its way from eBay supposedly rebuilt in the states with rebuilt stator and rotor and new regulator and rectifier.
My current issue is removing the old alternator. I thought it might be a bit tight but was hoping that when the mounting bolts were removed there would be just enough room to get it out. I have wiggled it about quite a bit but can't seem to get it in the right position to get it out. I may not have been searching properly bit haven't been able to find anything on the forum. Can anyone enlighten me or do I have to move / remove other items. Has anyone else had experience with replacing alternators on similar YB series? Can you let me know what is the least that needs to be done to get the alternator out, any particular order and any tips.
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1972 Honda CB350 (sold). 1974 Ducati 750 GT (sold), 1975 Honda CB750 (sold), 1975 Suzuki GT750 (sold), 1972 Suzuki T500, 1979 Egli Honda 836, 1986 Suzuki GSXR750 (ex Eddie Kattenberg WSBK), 1988 Bimota YB6EI, 1993 Honda RS125, 2007 MV Agusta F4 1000 312R.
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arnie2



Joined: 02 Sep 2019
Posts: 9
Location: Gorae Victoria Australia

PostPosted: Sun Mar 15, 2020 2:19 pm    Post subject: Reply with quote

Removed clutch slave cylinder and front sprocket cover and was able to slip alternator out.
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1972 Honda CB350 (sold). 1974 Ducati 750 GT (sold), 1975 Honda CB750 (sold), 1975 Suzuki GT750 (sold), 1972 Suzuki T500, 1979 Egli Honda 836, 1986 Suzuki GSXR750 (ex Eddie Kattenberg WSBK), 1988 Bimota YB6EI, 1993 Honda RS125, 2007 MV Agusta F4 1000 312R.
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Evilchicken0



Joined: 12 May 2010
Posts: 2965
Location: London

PostPosted: Mon Mar 16, 2020 11:53 am    Post subject: Reply with quote

I thought the alternator was bolted into the cover, maybe there's an issue with the Bimota frame that I'm not aware of (I know the engine from the ThunderCat
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arnie2



Joined: 02 Sep 2019
Posts: 9
Location: Gorae Victoria Australia

PostPosted: Tue Mar 24, 2020 1:35 pm    Post subject: Reply with quote

Evilchicken0 wrote:
I thought the alternator was bolted into the cover, maybe there's an issue with the Bimota frame that I'm not aware of (I know the engine from the ThunderCat

My YB6EI is fitted with the 1988 original 989 cc "Genesis" pre EXUP motor.
_________________
1972 Honda CB350 (sold). 1974 Ducati 750 GT (sold), 1975 Honda CB750 (sold), 1975 Suzuki GT750 (sold), 1972 Suzuki T500, 1979 Egli Honda 836, 1986 Suzuki GSXR750 (ex Eddie Kattenberg WSBK), 1988 Bimota YB6EI, 1993 Honda RS125, 2007 MV Agusta F4 1000 312R.
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