Re: [St] 2000 sprint ST wont start.

[Neil Lindsey <Neil.Lindsey@xxxxxxx>]

the really bad news is that, unless someone knows for sure that I am wrong,
it seems to me that the only way to fix a duff sprag clutch is to pull the
motor and split the cases :-(

I do know that was the case on my old Yamaha 750 Maxim anyway

----- Original Message -----
From: "Frederic NIZERY" <frederic.nizery@xxxxxxxxxxxxxxxxx>
To: "ST" <ST@xxxxxxxxxxxxxx>
Sent: Tuesday, April 22, 2008 1:12 AM
Subject: Re: [St] 2000 sprint ST wont start.


> As far as I can tell from my experience is that the principle of bike
> starter
> is different from the one on cages.
> I attach the schematic for a 2002 on model. I can't remember if between
> 2001 and 2002
> only the alternator moved or also the starter. But I think the principle
> remains.
>
> So there is no translation movement but a kind of drum on which three
> rolls pushed by
> three springs (I say three but could be four). When the starter turns, it
> tends to
> stuck the rolls on the drum which in turn engage the crank. When its the
> cranks that is spining
> it tends to retract the rolls. On the schematic, you can't see the detail.
> You just see the drum
> from which the outside surface is used. The tolls plus springs are
> included in big part that goes on it.
>
> When I had quite some time ago a similar problem (honda 750 four), the
> drum surface was damaged from
> repetitive use (pretty old bike) then the rolls didn't stuck anymore.
> Check out the state of the
> journal-like outer drum surface. I don't think that removing the cover let
> the oil going.
>
> I send to your personal email the picture.
>
> fred ST 02 BRG
>
>>2000 Sprint ST 955
>
>>I hear the fule pump turn on, when hitting the ignitation switch the
>>starter
>>begins to turn over. Before the engine makes it first revolution I hear
>>a
>>clank, and the starter motor just spins.
>
>
>
>>It seems to me that when the starter motor gets pressure on it somthing
>>get
>>thrown out causeing the starter motor to just spin while not engaging
>>the
>>engine.
>
>
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