UL Power Forum (77)

Discussions Replies Latest Activity

Black Sooty Exhaust

I don't understand why the exhaust on my 350is continues to be black and sooty. Was like that when I uncrated it and hasn't improved after…

Started by Tom Sullivan

3 Sep 22
Reply by Tom Sullivan

Hall/RPM Sensor Oil Leak

Has anyone else experienced small amounts of oil leaking around the Hall/RPM sensors on the back of the engine block?

Started by Scott Miller

3 Sep 17
Reply by Fred Williams

UL Power Cowl Plugs

Need cowl plugs for your UL Power cowl? I wanted them mostly for looks, but if you keep your plane outside they obviously can help keep awa…

Started by Mark Pensenstadler

3 Sep 15
Reply by John Austin

Viking Steel bungee with UL Power 350 series engine

When I built my 650, I installed the Viking steel bungee suspension.  The ground handling seems to be ok but in flight the rudder will not…

Started by Larry Ward

2 Sep 12
Reply by Larry Ward


FYI,  UL mufflers (at least for the 350iS) now come from the factory with a reinforcing gusset to the exhaust pipe flange.  I repaired my o…

Started by David J. Beaulieu

23 Sep 8
Reply by wmahon@mahon-cpa.ca

Regulator/Rectifier connector

Hey Guys, take a look at your plastic connector to the R/R.  I found a bit of overheated wire on one of the three phase wires coming from t…

Started by David J. Beaulieu

6 Sep 1
Reply by Ken Ryan

Regulator/Rectifier Replacement

My R/R connector burned last week and I have been doing a lot of research on this topic.  Has anyone changed their R/R from the factory sup…

Started by Scott Miller

2 Sep 1
Reply by Scott Miller

Static thrust

Does anyone have any idea about the max static thrust of the 350is? 

Started by Alexander Ehrnrooth

0 Sep 1

Tannis engine preheat for ULPower 350

Has anybody had success with installing a Tannis engine preheating system on a UL-350 series engine?  I don't see kits that is specific for…

Started by Timothy Aanerud

4 Aug 23
Reply by Jerold Ebke

No, no, no!!!

This UL is starting to make me lose "the love" just a bit.  20 hours on the rebuild and postflight inspection discovered this!  (Sigh) - go…

Started by David J. Beaulieu

12 Aug 21
Reply by David J. Beaulieu


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