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Starter Motor Rebuild

Posted: Wed Dec 01, 2021 8:16 pm
by Miles
Hello folks,

Excuse my ignorance but after searching around on the forum for abit I couldn’t find any information about taking the starter motor apart.

I remember years ago coming across a guide for it but no such luck.

Much appreciated if anyone could send me in the right direction

Thanms

Re: Starter Motor Rebuild

Posted: Thu Dec 02, 2021 2:42 pm
by banner001
I know of the same guide, think the pictures are long gone.

I've done it before, and it was a giraffe, as you have to get all 4 carbon brushes past the commutator.

You can use toothpicks or thin crocodile clips to hold them back on reassembly, but it's very difficult still.

Word to the wise, when I did mine it never worked properly afterwards, had to buy another one

Re: Starter Motor Rebuild

Posted: Fri Dec 03, 2021 8:07 pm
by Miles
Not a problem, thanks for the reply Banner.

Did you get a new motor from somewhere or was it 2nd hand?

Obv Kwak don’t do them anymore (along with original coil packs, hence my other posts about changing to stick coils but I think stick coils will fry the Igniter due to their secondary resistance and feeding a pulse back into the igniter)

Re: Starter Motor Rebuild

Posted: Sun Dec 05, 2021 9:34 pm
by banner001
2nd hand one from ebay.

I was trying to sort out my starting issues, and thought it might be the motor...turns out that new battery leads and a much higher cranking battery (175cca!) fixed it...

Re: Starter Motor Rebuild

Posted: Mon Dec 06, 2021 8:24 pm
by Miles
Ah yes I happen to own a set of you’re much improved battery leads.

Maybe a higher cranking battery will help as well

Re: Starter Motor Rebuild

Posted: Tue Dec 07, 2021 2:59 pm
by banner001
Standard battery is YTX9-BS, which is 135CCA

Motabat battery is MB9U, which is 140CCA

Yuasa YT12A-BS battery is awesome, and 175CCA - this is what i have on my bike, and its awesome!

Re: Starter Motor Rebuild

Posted: Tue Dec 07, 2021 8:04 pm
by Miles
Is the YT12A-BS a straight swap banner or did you need to lift the battery up to reach the cables etc?

Re: Starter Motor Rebuild

Posted: Wed Dec 08, 2021 1:24 pm
by banner001
Straight swap, it's the same dimensions as the oem, and the terminals are in the same place