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Old 07-23-2013, 03:28 AM   #1
4Skins OP
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Location: Wellington, New Zealand
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990 Adv Starter just spins

Gidday from down under.

I have an '07 990 Adventure. The other day when I got home I stopped the bike, opened my garage door then went to start it again. The starter motor ran but it did not engage with the engine, it just whirred away and would not engage.

Knowing all the impossible places I have taken this machine and this happens outside my garage was stunning.

Anyway the next day it started as per normal but I am scared to take the bike off my property in case it happens again and strands me far from home.

Has anybody heard of this before or do you have any suggestions on where to start. I don't think it is the starter motor itself. I have removed the L/H side cover and can see a one-way clutch mechanism behind the flywheel. Do these give problems?


Thanks

Johnny Forsyth aka 4Skins
Wellington NZ
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Old 07-23-2013, 04:41 AM   #2
Peanuts
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I have had problems with the freewheel on smaller engines, so it could be that. Another potential is the torque limiter, there is an update kit available for early bikes which includes a new cover. But your 07 should not need the complete kit, just the torque limiter itself and a gasket.
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Old 07-23-2013, 04:59 AM   #3
gefr
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Quote:
Originally Posted by 4Skins View Post
I have removed the L/H side cover and can see a one-way clutch mechanism behind the flywheel. Do these give problems?
Exactly, the sprag failed. You can buy one from a 640 motor and cannibalize the "beans" and the spring. These are the same. The flywheel doesn't really need replacement.
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Old 07-23-2013, 09:18 AM   #4
Motomedic
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FWIW, I just dropped the whole 640 sprag assembly into the back of my 950 rotor. No need to remove beans/spring, etc.

DO remember to use RED Loctite on the bolts for the retainer though.
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Old 03-30-2014, 05:12 PM   #5
keener
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I'm having exact Sam problem, except I'm 1200km from home in a motel parking lot.

Any idea what can be done without needing new parts?

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Old 03-30-2014, 05:31 PM   #6
gearheadE30
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Probably bump start it until you get back...

Out of curiosity, does the torque limiter update kit come with a new sprag?
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Old 03-30-2014, 05:33 PM   #7
keener
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From my research it looks like it's starter sprag . Need parts:(



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Old 03-30-2014, 05:33 PM   #8
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http://www.advrider.com/forums/showt...=504913&page=2

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