SOHC.co.uk Forums > CB750
Starter Motor
kettle738:
The starter motor on my K0 is a bit sluggish, it will start it when warm but it always feels like it's struggling even though the battery is good. (The compression does feel surprisingly strong on the kick start)
I would like to find a nice clean starter from a low miler and just substitute it rather than fettle the existing one.....and there are loads for sale.
Problem is, most are from much later models. Were any changes made to the starter motor which would prevent a K2 to K7 starter from slotting straight into a K0 crankcase? Are the later ones better?.......were they improved over the years of production? Are there better starters from different bikes that fit? anyone got any knowledge of these please?
Mick..........kettle738
UK Pete:
mick think i have one with the lead cut off you can have if you want, i will see if its still there, if so its yours to have
pete
kettle738:
Hi Pete, thank you, that's very kind of you.......zero urgency though, next time I see you would be great.
If it gets urgent I'll ride over to yours.
I notice we have a new CB750 (sandcast IIRC) owner in Dover......we should take a ride over there some time.
Best.............Mick.
K2-K6:
Worth making sure that your earth lead and conections are up to the job as they can significantly slow the motor down when not conducting properly.
I've often doubled car earth straps to the engine and it makes a surprising difference, try putting your hand onto the main earth when the starter is struggling and if the lead is warm that'll tell you it could be limiting the starter current.
UK Pete:
--- Quote from: kettle738 on April 04, 2014, 07:40:01 AM ---
Hi Pete, thank you, that's very kind of you.......zero urgency though, next time I see you would be great.
If it gets urgent I'll ride over to yours.
I notice we have a new CB750 (sandcast IIRC) owner in Dover......we should take a ride over there some time.
Best.............Mick.
--- End quote ---
Its that time of year i drag out some of my classics and put them back on the road, i might do the K1 next then i will bring up the starter motor to you, that is if i can find it
Yes i see his sandcast it was in wills van when they dropped off the K0 engine to me , he was on his way to dover to drop it off
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