Yamaha YZF-R6T / YZF-R6TC Supplementary Service Manual (2005)

Yamaha substantially revised the YZF-R6 for the 2005 model year while retaining the platform introduced in 2003. Yamaha presented the 2005 machine at INTERMOT in September 2004 and described the changes as going well beyond a normal minor revision. The development focus was improved circuit performance without abandoning the R6's established road-going supersport character. Yamaha's official 2005 YZF-R6 launch release identifies the main changes as improved intake efficiency, revised frame rigidity, an upside-down front fork and radial-mount front brakes.

The 2005 YZF-R6 retained the 600 cm³ liquid-cooled DOHC inline-four's 65.5 × 44.5 mm bore and stroke and 12.4:1 compression ratio, but Yamaha revised the intake and fuel-injection system. Throttle-body diameter increased from 38 mm to 40 mm, fuel pressure and injection mapping were revised, and the intake funnels were reshaped. Yamaha stated that these changes increased maximum output while improving high-rpm response and maintaining usable torque across the rev range. The supplementary manual identifies four Mikuni 40EIS throttle bodies for the 5SLR and 5SLS variants.

Chassis development was equally significant. Yamaha revised the Deltabox III frame's rigidity balance, fitted a 41 mm inverted front fork with preload, compression and rebound adjustment, changed the front tire to a 120/70 ZR17 profile and introduced dual 310 mm front brake discs with radial-mount calipers and a radial-pump master cylinder. The supplement records these changes directly, including revised suspension specifications, braking procedures, wheel service data and cable routing. Together they define the 2005 model as a revised fuel-injected 600cc supersport motorcycle rather than an unchanged carry-over from 2004.

The 2005 specification was the final major evolution of this R6 platform before Yamaha introduced an all-new 2006 generation. That successor added a new high-revving engine, twin-injector fuel injection, a slipper clutch and YCC-T electronic throttle control. Yamaha's official 2006 YZF-R6 release marks that next major generation break. Related publications are available in the Yamaha YZF-R6 service manual catalog.

This listing is specifically for factory publication LIT-11616-18-45 / 5SL-28197-12, first edition September 2004, covering the 2005 YZF-R6T and YZF-R6TC with model codes 5SLR and 5SLS. Yamaha states that this 64-page supplement must be used together with the 2003 base service manual LIT-11616-16-45 and the YZF-R6S/YZF-R6SC supplement LIT-11616-17-46. It is therefore not a standalone workshop manual.