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Main Fuse Blowing

Steve P

CB750 Member
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Nottingham, UK
My restoration of a CB750KZ progresses well, however after fitting a new battery i turn the ignition key and the main 30A fuse blows. Obviously a short but everything looks ok to me, i've disconnected all i can, ie left and right handlebar switches, all the lights, starter motor, rectifier etc but still it blows.
Anyone got any ideas where to look - and could the solenoid itself be faulty?
 
After much head scratching i replaced the rectifier and hey presto - all is now ok! There was obviously an internal fault in the unit.
 
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