SOHC.co.uk Forums > CB750

Help Cb750

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gazadi:
Firstly i have had my cb750 for about three years and have only just found this forum.

Mine is a chopper and it has a electric starter on it but i want to wire this up so i can use this is this a simple job ?
As at present it can be a b%*%*%d to start with a kick start.

How can i find out what model it is as all i have is the engine number B750GE 1003238.
If anyone has a photo of the stating motor with wires that would be very helpful.
And could it be possible to use this on a button start??

Seamus:
Is it a single cam or double cam model?

hector2800:
thats a cb750 f2 sohc engine. I think.

gazadi:
Yah it is a SOHC.
But what i want to do is connect the starting motor up so i cantstart off the button as it is difficult to start with the kick start.
The starting motor is fitted and there is one wire to it that is live but there is no earth so is this require or will the starting motor earth out on the engine?.and how can i wire a button in to it??

SteveD CB500K0:
The starter motor draws BIG amps from the battery and has a thick wire connected to it.

This thick wire goes to the battery via the starter solenoid which switches the power when you press the button on the 'bars. The motor is earthed via the engine cases.

You can test the starter motor without a solenoid by simply connecting the thick wire to the +ve battery terminal while the motor is fitted (don't try this without the motor screwed down!)

The wire from the starter switch grounds the contact on the solenoid which then closes the high current circuit.

Hope this is clear - can't draw on here! (where's the "back of an envelope" feature when you need it?)

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