912 ULS cut-off on landing roll

Hi Sean,

No problem. Just chit chating back and forth. Great way to learn from different  points of view.

It would be nice if someone let me know which are the best gauges to buy and layman's directions on how to balance the carbs. I think I could grasp the technique. It's not rocket science......

Detailed instructions for syncing the carbs are in the Line Maintenance Manual, Chapter 12-20-00 (Scheduled Maintenance) under Fuel System.  All you really need for the pneumatic sync are a couple of vacuum gauges and rubber hoses to attach them to each carb (the manual gives four options for attaching them).  You will probably want to add a restrictor valve in each hose to stop the gauge needles bouncing around too much.

Lockwood used to sell a nice little vacuum-gauge kit for just this purpose, but they don't seem to have it anymore...?

Just buy 2 liquid filled 0 - 30 (inches of water) vacuum gauges. Don’t buy ones that are crowded with lots of different info. Keep the dial face simple and plain. It’s just easier to read.  Then go to the hardware store and buy some vacuum tubing and brass fittings. Then mount the gauges on a small fiber board. Cost is about $70

I purchase mine from a motor bike shop - cheap dial gauges, came as pair mounted in a bracket. They work vey well - use two little taps/valves to "smooth" out the vacuum pulses. 

After you purchase the gauges, you will need to purchase a long enough hose/vacuum tubing (x2) so that you can read the gauges in the cockpit.

Adjusting the carburettors is "fiddley"  - You can read the Rotax instructions & work your way through it or get help from an experienced person (mentor) and vastly reduce the time taken. Its a bit like plastering - it looks so easy, everyone understands how to do it but when you try, it  turns out to be hard to do a good job.