fbpx

 

Thursday, 03 December 2020 09:13

ROTAX Carburetor Floats Identification

Written by

A new version of carburetor floats (Part number 861189) has been introduced for Rotax® Engine Type 912, 914 and 2-stroke (Series).

MANDATORY Service Bulletin has been issued which applies to a limited range of 912, 914, and 2-stroke engines, as well as any engines which have been equipped with ROTAX part number 861185 or 861188 floats during engine repair, maintenance or general overhaul.

Due to a deviation in the manufacturing process some floats of part no. 861185 and part no. 861188 might 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 in 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.

 

For warranty replacement you should immediately contact your ROTAX distributor or their independent Service Center .

 

(You may be required to fill out a CSIR and submit it to your local distributor or independent service center.)

 

Replaced parts must be returned to your ROTAX distributor or their independent Service Center for scrapping.
Alternatively you can sign a form or supply an electronic acknowledgment that you have destroyed the old parts, including a clear statement that you will be liable if you fail to do so as the old parts are no longer suitable for use. - (example form)

 

 


(part number 861189)

The service bulletins 
SB-912-074/ SB-914-056 – EXCHANGE OF FLOATS (PAIR) ON ROTAX® ENGINE TYPE 912 AND 914 (SERIES)
and
SB-912-074 UL/ SB-914-056 UL/ SB-2ST-004 – EXCHANGE OF FLOATS (PAIR) ON ROTAX® ENGINE TYPE 912, 914 AND 2-STROKE (SERIES)
provide full details about the float replacement, and these bulletins list the serial number ranges of affected engines and affected carburetors.

NOTE: the SB-912-074 / SB-914-056 certified bulletin contains an appendix with a complete list of affected carburetor serial numbers. The appendix contains an additional 137 pages, so please consider this before printing a paper copy!


REVIEW OF THE DIFFERENT CARBURETOR FLOATS:


P/N 861184
refer to bulletin SB-912-065

 


P/N 861184
refer to bulletin SB-912-065

 


P/N 861184 'one dot'
refer to bulletin SB-912-067

 


P/N 861184 '2 dots'
refer to bulletin SB-912-067

 


P/N 861185 '3 dots'
refer to bulletin ASB-912-069

 


P/N 861188 'small brass guide'
refer to bulletin SI-912-029

 


P/N 861189 'marked with R'
refer to bulletin SB-912-074

 

 

Read 14984 times