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Old 11-01-12, 06:44 PM   #1
squirrel_hunter
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Join Date: Apr 2005
Location: Sunny Swindon
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Default Starter Clutch Failure

The below picture is from mackemforever's 2000 SV650 (c.20,000 miles, restricted, standard except end can, recently reframed). Looks like we are missing 5 teeth from the starter clutch:



The symptoms were described as bad starting which is suspected as the usual reg/ rec problem as it needed to be bumped and boosted to and from the MOT station. But also unhealthy sounding bangs which would stop once the engine started almost as if the exhaust had a hole in it. Battery charged, the starter motor was removed and earthed on the frame, it span freely. So the process of elimination while wondering if the starter motor may require attention was to take the alternator cover off to have a quick look at the starter clutch. This is the image I was emailed.

So obviously the starter clutch (at the very least) requires replacement. I have advised not to attempt to start the engine again until all bits of the clutch have been recovered, that is if the teeth are still whole. However I think mackemforever would like to avoid splitting the engine to do this though I've not ruled this out yet. He should be sifting the drained oil for bits plus I've told him to take the oil gallery bolt out as I've found bits of engine in there before.

Is there any further advise to give and what might have caused this starter clutch to fail?
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