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Lyle Persels
Joined: 10 Jan 2006
Posts: 34
Location: Osceola, IA
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 Posted: Tue Sep 19, 2006 9:35 am Post subject: 912 ULS Ignition installation |
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I'm replacing the Rotax 912UL in my KF-IV 1200 with a 912ULS.
Several of the 912 listers have experienced wire breakage and other
ignition problems on their 912UL thought to be related to vibration
that is common at startup and shutdown or at lower rpm. Some have
sought (and found) relief by relocating their ignition modules/coil
assemblies from the engine to the firewall or engine mount on the
firewall side of the donuts. I was one of these.
I'm wondering if these problems have have followed the 912 into the
912S engines. Are 912S operators experiencing similar problems with
the engine-mounted installations? I need to decide whether to leave
the ignition unit on the engine or move it to a more vibration-
isolated location. I'd appreciate thoughts and recommendations.
New subject: I've also bought a set of King Fox (I think that's their
name) 21X12-8 tires to install on my Matco wheels and brakes. They're
great looking tires and John M says they've been well received in the
field (pun?), but mine won't fit. The wide side of the tire contacts
the rear fairing on my tube gear installation. Have others had this
problem? Again, I'd appreciate thoughts and recommendations.
Thanks,
Lyle Persels
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dcsfoto
Joined: 24 Aug 2006
Posts: 120
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| Posted: Tue Sep 19, 2006 10:24 am Post subject: Re: 912 ULS Ignition installation |
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I have the old ignition installed behind firewall and been told by two Rotax service centers that off eng mounting is best ,they see almost no problems with the old system. The black boxes now cost $900.00 +.
Just mounted my new tires, they fit fine.John advised me that Matco wheels may need a 1" spacer between wheel haves.I have ATV wheels an they work fine.
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