Harley Davidson FLSTF Softail Fat Boy 2017 Service Manual

Motoplanete's own review captures the cultural weight this exact model carries: "this is certainly the bike that most epitomizes the Harley spirit. Introduced in the 90s, the 'big' bike is a hymn to the rebellious post-war era... the cinema has made it legendary: it's nothing less than Schwarzenegger's mount in Terminator 2." Autoevolution's own confirmed history nails down exactly why this model year matters for identification: "the bike... was known as the FLSTF from 1990 to 2017, while from 2018, it was known as FLFB and FLFBS" — making this 2017 model the genuine last year of a code that had run continuously for 27 years.

Power comes from the High Output Twin Cam 103B, a 1,690cc (103.1 cu.in) air-cooled V-twin, a 3.87-inch bore and 4.374-inch stroke, a 9.6:1 compression ratio, delivering a claimed 132 Nm (97 lb-ft) of torque at 3,000-3,250 rpm, run through Electronic Sequential Port Fuel Injection and a 6-speed transmission with chain primary drive (34/46 ratio). Autoevolution's own confirmed account describes the exact 2017 styling: a black frame, black front and rear fenders, a chromed fork and headlight housing, a black powder-coated engine with chromed head covers and fins, and a dual chromed exhaust.

Ventura Harley's own confirmed factory sheet lists genuinely precise gear ratios across all six speeds and mirror chrome aluminum bullet-hole disc wheels front and rear — the Fat Boy's signature solid-disc look since 1990. Autoevolution's own confirmed account notes the only genuine changes for this exact model year were a new battery tender harness and fresh color options.

A range-topping Fat Boy S variant sold alongside it that year ran a larger 1,803cc (110ci) engine badged FLSTFBS, sharing the standard bike's frame and styling with a genuine performance-tuned engine upgrade. This 2017 configuration closed out the original FLSTF code before Harley's 2018 Softail redesign renamed the model FLFB (107ci) and FLFBS (114ci) on the new single-shock chassis.

This factory service manual covers the procedures, torque specs, and diagrams needed to keep a 2017 Softail Fat Boy FLSTF running the way it was built to.