Zenith Aircraft Builders and Flyers
Online Community of Zenith Builders and Flyers
UL Power Forum (121)
| Discussions | Replies | Latest Activity |
|---|---|---|
Anyone have a UL 520IS or T on a 750 SD ?We are building a 750SD. We looked into buying a Titan x-370 for it but delivery is at least a year out. The UL 520 delivery is supposedly… Started by Joe Bates |
6 |
Jan 31 Reply by David J. Beaulieu |
Run in speedI am planning on putting a UL 350iS in my CH601. The manual says to maintain 80% power for the first 15 hours. Could someone with a UL 350i… Started by Mark Hubelbank |
4 |
Nov 18, 2022 Reply by Michael Shewan |
Power DropFolks, I have a head scratcher type puzzle. On climb out my 350i occasionally has an unscheduled power drop of around a hundred rpm. Not e… Started by Ralph Powell |
18 |
Nov 3, 2022 Reply by Ralph Powell |
Fuel pump optionsHas anybody had to replace their fuel pumps? I have had recurring leak issues on the copper washers (against the pump houssing), annealing… Started by John Bell |
5 |
Oct 27, 2022 Reply by Jean Christian Mikellides |
Zipper Big Bore KitHi to anyone who has information about the Zipper Big Bore Kit for the 912S Rotax engine. I am interested in increasing the HP of my 912S… Started by Allen Buckley |
1 |
Oct 6, 2022 Reply by Mel Asberry |
Securing the Oil Drain PlugThis site has addressed what to do for securing the oil filter, any suggestions with regard to the oil drain plug? Drilling the bolt head… Started by Joe Stephens |
3 |
Oct 1, 2022 Reply by David J. Beaulieu |
Throttle spring on UL350I'm not a fan of throttle spring to wide open. Has anyone removed this feature? Will removing it affect warranty? Started by Mel Asberry |
9 |
Sep 17, 2022 Reply by John Bell |
Spark Plug CarbonI have had a problem with my number 3 cylinder for awhile now. Both spark plugs carbon up quickly and I am not sure what is causing it. A… Started by Scott Miller |
4 |
Aug 31, 2022 Reply by Ralph Powell |
ULPower 15 hr engine serviceJust finishing the 15 hr service after rebuild on my UL350iS. Required a torque check on the cylinder head bolts. If torque has loosened… Started by David J. Beaulieu |
17 |
Aug 29, 2022 Reply by Scott Miller |
Alternator Stator Bolt ThreadThe part number/description for the three bolts are: F0706040 Hexagon head screw - M6x40 - 8.8 Steel – Zinc plated Ar… Started by Joe Stephens |
1 |
Aug 23, 2022 Reply by Joe Stephens |
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