Which Rotax engines are fuel injected?

Rotax-Owner wrote:

It can be confusing, but here it goes!

The "iS" in the engine designation stands for Injected Series. However, in the case of the 912ULS, the "S" represents the 100hp version, while "UL" stands for Ultralight. The 912F is certified according to the FARs (Federal Aviation Regulations), and the 912A holds the European JAR certification.

Below is the breakdown:

• 912UL: Uncertified 80 hp (Carbureted)
• 912 A: Certified to JAR 22, 80 hp (Carbureted).
• 912 F: Certified to FAR 33, 80 hp (Carbureted).

• 912 S: Certified to FAR 33, 100 hp (Carbureted).
• 912 ULS: Uncertified, 100 hp (Carbureted).
• 912 ULSFR: Uncertified French Authority specification (90 hp). Same as the 912ULS, but with limited maximum RPM and blue valve covers.

• 914 UL: Uncertified, 115 hp (Carbureted).
• 914 F: Certified to FAR 33 (Carbureted).

• 912 iS: Uncertified, 100 hp (75 kW) with direct fuel injection and an electronic engine management unit.
• 912 iSc: Certified, 100 hp (75 kW) with direct fuel injection and an electronic engine management unit.
• 912 iS Sport: Uncertified, with larger aluminum airbox, longer intake runners, and eco-mode when operated below 97% power setting, with direct fuel injection and an electronic engine management unit.

• 915 iS A: Non-certified, with direct fuel injection and an electronic engine management unit.
• 915 iSC A: Certified, with direct fuel injection and an electronic engine management unit.
• 915 iS C24: Non-certified with 24-Volt system, with direct fuel injection and an electronic engine management unit.
• 915 iSC C24: Certified with 24-Volt system, with direct fuel injection and an electronic engine management unit.

• 916 iS A: Non-certified, with direct fuel injection and an electronic engine management unit.
• 916 iSC A: Certified, with direct fuel injection and an electronic engine management unit.
• 916 iS C24: Non-certified with 24-Volt system, with direct fuel injection and an electronic engine management unit.
• 916 iSC C24: Certified with 24-Volt system, with direct fuel injection and an electronic engine management unit.

Wow!!! That's wild. Thank you for sharing!

I hate to get technical, but then again, this IS a technical Forum ...  ?
It would be more proper to describe the Rotax fuel injected Engines as "Multi Port Injected (MPI) " and NOT as "Direct Injected"

MPI systems inject the fuel into the intake manifold just before the Intake Valves.  The Most common system used today.
Direct Injection systems inject the fuel directly into the Cylinder, usually late in the compression stroke. Most commonly used in Diesel Engines.

A third method usually seen as a retrofit method to replace carburetors, is Throttle Body Injection (TBI) where the fuel is injected well upstream of the intake valves at a single point common to all cylinders.  This is also known as Single Point Injection (SPI).

Bill Hertzel, you are absolutely right, and we have rectified the error. We appreciate your ongoing support and consider you a valuable member of the Rotax Owner forum. Thank you!