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Service bulletin SB-M-1220

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10032652
Published by NHTSA2010-04-23
Manufacturer's numberSB-M-1220
Manufacturer's date2008-12-08
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

HARLEY DAVIDSON: ENGINE IDLE TEMPERATURE MANAGEMENT SYSTEM. THE CALIBRATION OFFERS LIMITED REAR CYLINDER COOLING WITH THE MOTORCYCLE STOPPED WHILE THE ENGINE IS LEFT AT IDLE ONCE THE TEMPERATURE THRESHOLD IS EXCEEDED. MODELS 2007-08 DYNA AND SOFTAIL (FXD, FXDC, FXDL, FXDWG, FXDB, FXDF, FXDSE, FXDSE, FXST, FSXTB, FXSTC, FXSTD, FXCW, FXCWC, FLST, FLSTC, FLSTF, FLSTN, FLSTSB, FLSTSC, FXSTSSE AND FXSTSSE); 2009 DYNA AND SOFTAIL (FLST, FLSTC, FLSTF, FLSTN, FLSTSB, FXCW, FXCWC, FXST, FXSTB, FXSTC, FXD, FXDB, FXDC, FXDF, AND FXDL). *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
HARLEY-DAVIDSON DYNA2007
HARLEY-DAVIDSON FLST
HARLEY-DAVIDSON FLST2007
HARLEY-DAVIDSON FLSTC
HARLEY-DAVIDSON FLSTC2007
HARLEY-DAVIDSON FLSTF2007
HARLEY-DAVIDSON FLSTN2007
HARLEY-DAVIDSON FLSTSC2007
HARLEY-DAVIDSON FXCW2007
HARLEY-DAVIDSON FXD2007 to 2008
HARLEY-DAVIDSON FXDB2007 to 2009
HARLEY-DAVIDSON FXDC2007 to 2009
HARLEY-DAVIDSON FXDF2009
HARLEY-DAVIDSON FXDL2007 to 2009
HARLEY-DAVIDSON FXST2007
HARLEY-DAVIDSON FXSTB2007
HARLEY-DAVIDSON FXSTC
HARLEY-DAVIDSON FXSTC2007
HARLEY-DAVIDSON FXSTSSE2007
HARLEY-DAVIDSON SOFTAIL2007

Listing a model year does not mean every vehicle of it is concerned: the document says which.