A reliable 961 starter motor? Calling all Hog Jockeys.

Good news Clive, but that's interesting as you'd think the resistance of any brushes would be negligible. I know yours were cracked (weird) but surely they were still passing current?
the one was split wider than normal and not moving well in the carrier and the other was split in half where it meets the commutator. The brushes are actually wider than each sector on the commutator so I think they should create current in more than one winding on the armature. That is my guess but it now turns over like the starter on a proper motorbike!
 
the one was split wider than normal and not moving well in the carrier and the other was split in half where it meets the commutator. The brushes are actually wider than each sector on the commutator so I think they should create current in more than one winding on the armature. That is my guess but it now turns over like the starter on a proper motorbike!
Wow, that's a pretty elementary mistake. Glad it's sorted anyway. I guess you don't need a replacement now?
 
Got my replacement brushes machined up and soldered in which, was a bit tricky trying to get a soldering iron with enough capacity to do the job and be small enough to fit in, but put it all together and it spun up and started the bike like never before. If I didn't have a replacement on order I'd make it a bit more permanent and be quite confident about the fix. So a nice ride into work this morning (as good as it can be for Birmingham) Yeahh!
You can't argue with great results !
 
Well DB Electrical in the USA came up trumps! Worked out just a bit over £200 including postage, took ONE WEEK! and came with a test report sheet. Still debating whether to at least paint the end silver but there again if it comes out a slightly different shade of silver it might as well be black. I suppose it kind of fits with my modded intake look.

Current starter with my fettled brushes still starts it first time no stalling even when hot. Is this what it feels like to own a proper motorbike?

A reliable 961 starter motor? Calling all Hog Jockeys.
 
Well DB Electrical in the USA came up trumps! Worked out just a bit over £200 including postage, took ONE WEEK! and came with a test report sheet. Still debating whether to at least paint the end silver but there again if it comes out a slightly different shade of silver it might as well be black. I suppose it kind of fits with my modded intake look.

Current starter with my fettled brushes still starts it first time no stalling even when hot. Is this what it feels like to own a proper motorbike?

View attachment 80509
Black should look good.
 
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