just ordered yamaha 150fi engine

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millerperf

Member
Joined
Oct 7, 2010
Messages
19
Location
st cloud florida
hi all new here looking for guru help!any information on psru drive install will be helpfull.or phone number thanks looking forwaed to this adventure thank mark 321 624 3387
 

Dana

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CT, USA
I've never heard of this engine. Are people using them on aircraft? Do you have ay details, performance, specs?

-Dana

Dullard: someone who can open an encyclopedia or dictionary and only read what they'd planned to.
 

millerperf

Member
Joined
Oct 7, 2010
Messages
19
Location
st cloud florida
150hp snow mobile engine alot of people are using the 3 cylinder engine the 150fi is 4 cylinders hoping someone on here has allready built adapters thank mark
 

GTX_Engines

Member
Joined
May 17, 2013
Messages
16
Location
Atlanta, GA
Ernie at RFD won't sell his Yamaha 4 cylinder (YG4) conversion, it's pretty much a static display. He ran into too many issues which impact safety, including electrical glitches resulting in sudden engine power reductions to idle, and failed clutches. He beefed up the clutch, but I don't think he ever eliminated the electrical gremlin completely. He decided that too much time was involved in making the conversion and that he couldnt' make any money doing it. Bottom line, forget Ernie and RFD, they have abandoned the Yamaha conversions for the time being. I am going to change his mind on that very shortly, however, and sell him ours.

The Yamaha 3 cylinder (YG3) conversion that Todd does out of Colorado has also suffered numerous problems since inception - including catastrophic clutch failures and cracked/broken exhausts, problems all related to the design. They build a complete box frame outside of, and surrounding, the engine, which introduces all kinds of strange vibration combination possibilities which can easily result in migraine headaches. Supposedly they have the problems sorted out, but the design is still not very good for several reasons: it is complex, difficult to install, unnecessarily heavy, and very expensive.

These issues led us to abandon both concepts completely and start from scratch with a next gen design which avoided all of the mistakes and missteps both of these shops suffered. We have successfully engineered, fabricated and fully tested a unique, lightweight, durable YG4 conversion for a fraction of the cost of the Colorado shop.

The Colorado Yamaha 120 HP, YG3 engine kit installed weight is 175 lbs and costs $3000. Installed weight here includes cooling system, electrical, oil tank, and exhaust w/o muffler. Price includes the box frame to mount the PSRU and the complicated engine mounts, with no supports to attach from the engine mounts to the airframe - in our case a gyroplane.

The GTX Yamaha 120/150 HP, YG4 engine kit installed weight is 175 lbs and costs $1900. Same ancillaries as above, and includes all supporting framework to the keel and mast of a gyrocopter.

Please contact us for more info at GT Mills Co.

404-22-2856
gtmills@hotmail.com
 
Last edited:

GTX_Engines

Member
Joined
May 17, 2013
Messages
16
Location
Atlanta, GA
BTW: What exactly did you mean by "Just ordered.."??? DId you buy a sled? How did that turn out, this thread is very old? I found this thread on a google-type search engine on the net.
 
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