BRP ROTAX 912 Series Service Bulletin

d06856.fm
03 December 2020 73-00-00
Initial Issue Page 2 of 12
Copyright - BRP-Rotax GmbH & Co KG. All rights reserved.
SB-912-074 / SB-914-056
SERVICE BULLETIN
* For easier carburetor serial number (location on carburetor see Fig. 1) search within the
Chapter 4) Appendix of this pdf document make use of the search function normally integrated in
your PDF reader software. This function normally should be found in one of the menu bars or most
common press the “Ctrl + F” buttons simultaneously to reveal a pop-up menu.
The menu will feature a search box where you can enter the serial number to be searched for in
this document.
Use this search box to enter the serial number in the 6-digit format as shown in Chapter 4) Appen-
dix and click on the “Next” button to proceed with the search.
NOTE: The part numbers and serial numbers of the carburetors mentioned in Chapter 4)
Appendix comprise all the carburetors delivered installed on engines as mentioned in
Criterion A) and all carburetors delivered as a spare part.
Criterion C) Spare parts:
Further all engines are affected, which have been equipped with carburetors with part number and
serial number listed within Criterion B) above during engine repair, maintenance or general over-
haul or any other exchange action.
Further all engines are affected, which have been equipped since June 01
st
2015 with floats part
no. 861185 and 861188 as a spare part or provided within a service kit carburetor, maintenance
kit carburetor and overhaul kits during engine repair, maintenance or general overhaul or any
other exchange action.
NOTE: The Service Instruction SI-912-029/SI-914-029 is not affected.
NOTE: The carburetor and/or the float may have been removed from the initial engine and
used on another one.
Engines and/or carburetors with serial numbers higher than in Criterion A or B have
already been equipped with these types of floats.
For relevant information, see the maintenance records and/or the logbook.
1.2) Concurrent ASB/SB/SI and SL
In addition to this Service Bulletin the following Service Instructions must be observed and com-
plied with:
- Alert Service Bulletin-ASB-912-069/ASB-914-051, “Exchange of floats on ROTAX
®
engine type
912 and 914 (Series)“, current issue
- Alert Service Bulletin-ASB-912-069UL/ASB-914-051UL, “Exchange of floats on ROTAX
®
engine type 912 and 914 and 2-stroke (Series)“, current issue
- Service Bulletin-SB-912-067/SB-914-048, “Exchange of floats on ROTAX
®
engine type 912
and 914 (Series)”, current issue
- Service Bulletin-SB-912-067UL/SB-914-048UL, “Exchange of floats on ROTAX
®
engine type
912 and 914 (Series)”, current issue
- Service Instruction-SI-04-1995, “Floats with a new shape, engine series type 912”, current
issue
- Service Instruction-SI-912-021/SI-914-023/SI-2ST-009, “Inspection of carburetors”, current
issue.
1.3) Reason
Due to a deviation in the manufacturing process some floats of part no. 861185 and part no.
861188 could gain more weight. This leads to a loss of float buoyancy and wrong regulation of the
fuel in the float chamber. Possible effects may be a rough running engine, especially at low
speeds and under some circumstances loss of performance and/or fuel leakage in the area of the
carburetor. Above mentioned floats must be replaced with floats part no. 861189.

BRP ROTAX 912 Series Specifications

General

Brand	BRP
Model	ROTAX 912 Series
Category	Engine
Language	English