| Electrics have improved as the years have gone on, main thing is service history, mileage shouldn't be an issue as seems to be the case the more the bikes is used the less chance of certain problems as the motor is being run more often.
Alternator/flywheel nut etc cannot easily be checked although you can/should b able to hear a knocking noise, which I never did when mine went years ago, not over the clutch jangle, and termi's, saying that retorquing of this is done as part of the service schedule, so check to see if it has been listed on the service history. | 
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