Request for Engine config tech data for a serial number?

4425662 was built 07-Jul-1999

The factory does not have configuration records for engines of that vintage, so I can't say whether or not it originally had a slipper clutch ( one may have been installed later, you can check it *)

To generate a checklist of all applicable service bulletins, go to the SERVICE BULLETINS link ( Under SUPPORT/BULLETINS menu) and then click on the button "By Engine Model".

Select 'ALL Type 912 ULS Engines" from the 'Engine Model' Dropdown, and tick the checkbox  Select Date Range.

Fill in the blanks 

From: 07/1999

To:      09/2019

then press the Search button.

* ( to check for slipper clutch, refer to https://www.rotax-owner.com/en/videos-topmenu/expanded-video-instructions/449-sb914050 )

Can you help me on the following two serial numbers, too?

#4409887

#4401786

I am specifically interested if there is any information available on the carbs that were used when manufactured.

Both engines run nicely with virtually no difference in performance or „behavior“.

Many thanks

Peter

4409887 was manufactured 20-may-2010

Engine Type: ROTAX 912 UL

Engine Version: 912 UL2

Model Number: 30912001 

Original Factory Configuration:

• without fuel lines
• UL2 I=2,27 with clutch
• for fixed pitch propeller
• without vacuum pump
• without mech. tachom. pick up
• without air box
• without external generator
• without engine truss
• without air guide baffle
• with std. temperatur sensors
• with nipple conn. for oil pump
• with expansion tank
• starter standard

original carb serial numbers:  

4401786 was produced 14-Apr-1997

Engine Type: ROTAX 912 UL

Model Number: 309120010

(no additional information is found in the factory database...)