info request about my 912 uls

Serial Number: 5643105

Model: ROTAX 912 ULS-2

Manufacturing Date: 21.08.2003

TBO: 1500 hours

This generation of the Rotax 912 ULS-2 engine is known for two common issues:

Crankcase Fretting:

• This issue occurs due to the lighter-duty crankcase design used before Rotax updated it in 2007 when transitioning to a 2000-hour TBO.

Premature Sprag Clutch Wear Due to Ignition Kickback:

• This issue was resolved around 2012 when Rotax introduced updated ignition modules with advanced timing to reduce kickback during startup.

Engine Configuration:

• Without fuel lines
• UL2 I=2.43 with clutch
• Without vacuum pump
• With green valve covers
• Without mechanical tachometer pickup
• Without external generator
• Without air guide baffle
• With standard temperature sensors
• With nipple connection for oil pump
• With expansion tank
• Without airbox
• Without engine truss
• Large starter