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912ULS sprag clutch problems ?

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alnanarthur(at)sbcglobal.
Guest

Posted: Sat Mar 17, 2007 9:51 am Post subject: 912ULS sprag clutch problems ?

List,



Has any Rotax 912  series engine users had sprag clutch problems?



I am having starting  problems and am  beginning to suspect the sprag  

clutch.



I would appreciate any insight  on  this  problem.



I expect  that  the 912ULS would  stress this part more than the 80  

hp 912.

I had early problems shaking off the carbs on start-up and shut-down  

with this

engine until I added  side springs  to each carb and had the the  

gearbox modified

to add the  30 deg. slipper clutch.



I  got one of the first  912ULS engines from Skystar.  I hope that I'm

not breaking new ground with this problem.



Allan Arthur

Kitfox 5, N40AA

Rotax 912ULS, Warpdrive 3 blade

Byron Airport, CA  (C83)  Hanger C8

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clint_bazzill(at)hotmail.
Guest

Posted: Sat Mar 17, 2007 1:11 pm Post subject: 912ULS sprag clutch problems ?

Allan,



Contact me off line, will give you some free good advise about 912ULS 

engines.  Had mine since 2000.  Clint  (650) 712-1802

From: alnanarthur <alnanarthur(at)sbcglobal.net>

Reply-To: kitfox-list(at)matronics.com

To: kitfox-list(at)matronics.com

Subject: 912ULS sprag clutch problems ?

Date: Sat, 17 Mar 2007 10:51:59 -0700






List,



Has any Rotax 912  series engine users had sprag clutch problems?



I am having starting  problems and am  beginning to suspect the sprag  

clutch.



I would appreciate any insight  on  this  problem.



I expect  that  the 912ULS would  stress this part more than the 80  hp 912.

I had early problems shaking off the carbs on start-up and shut-down  with 

this

engine until I added  side springs  to each carb and had the the  gearbox 

modified

to add the  30 deg. slipper clutch.



I  got one of the first  912ULS engines from Skystar.  I hope that I'm

not breaking new ground with this problem.



Allan Arthur

Kitfox 5, N40AA

Rotax 912ULS, Warpdrive 3 blade

Byron Airport, CA  (C83)  Hanger C8

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mlpaton2000(at)yahoo.com
Guest

Posted: Sun Mar 18, 2007 1:25 am Post subject: 912ULS sprag clutch problems ?

YES

I have the same problem , got a 912 s , shudders on start and shut down , checked the cluch springs but fine , our local rotax agent advised slipper cluch , i have got it now but not installed , glad to hear i was not only prob,

michael



---

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