The Yamaha R1 motorcyle introduced in 1998 as undergone a series of updates and modifications in its relatively long production run, we have highlighted some of the more significnt engine changes.

in 1998 performance figures showed 0-60 time of 2.96 seconds and standing quarter time of 10.19 seconds @ 131.40mph with a top speed of 168mph.

Model Year:  1998-1999
Engine type:  998 cc, liquid-cooled, 20-valve, DOHC, inline four-cylinder
Fuel delivery:  Carburetor
Bore x stroke:  74 × 58 mm (2.9 × 2.3 in)
Compresion Ratio:  11.8:1
Power:  129.4 hp (96.5 kW), 129.3 hp (96.4 kW) @ 10550 rpm
Torque:  72.7 lb·ft (98.6 N·m), 72.0 lb·ft (97.6 N·m) @ 8250 rpm[6]
Transmission:  6-speed w/multi-plate clutch

Model Year:  2000-2001
Engine type:  998 cc, liquid-cooled, 20-valve, DOHC, inline four-cylinder
Fuel delivery        BDSR40 with TPS system (Carburetor)
Bore x stroke        74 × 58 mm (2.9 × 2.3 in)
Compresion Ratio    11.8:1
Power            130 hp (97 kW), 129.3 hp (96.4 kW) @ 10550 rpm
Torque            72.7 lb·ft (98.6 N·m), 72.0 lb·ft (97.6 N·m) @ 8250 rpm[6]
Transmission        6-speed w/multi-plate clutch

Model Year:  2002-2003
Engine type:  998 cc, liquid-cooled, 20-valve, DOHC, inline four-cylinder
Fuel delivery:  Mikuni Fuel injection
Bore x stroke:  74 × 58 mm (2.9 × 2.3 in)
Compresion Ratio:  11.8:1
Power:  127.2 hp (94.9 kW), 134.1 hp (100.0 kW) @10800 rpm
Torque:  70.4 lb·ft (95.4 N·m)
Transmission:  6-speed w/multi-plate clutch

Model Year:  2004-2005
Engine type:  998 cc, liquid-cooled, 20-valve, DOHC, inline four-cylinder
Fuel delivery:  Fuel injection, motor-driven secondary throttle valves
Bore x stroke:  77 × 53.6 mm (3.0 × 2.11 in)
Compresion Ratio:  12.4:1
Power:  132 hp (98 kW)
Torque:  70.4 lb·ft (95.4 N·m)
Transmission:  6-speed w/multi-plate clutch

Model Year:  2006
Engine type:  998 cc, liquid-cooled, 20-valve, DOHC, inline four-cylinder
Fuel delivery:  Fuel injection, dual-valve throttle bodies with motor-driven secondary valves
Bore x stroke:  77 × 53.6 mm (3.0 × 2.11 in)
Compresion Ratio:  12.4:1
Power:  134 hp (100 kW)
Torque: 70.4 lb·ft (95.4 N·m)
Transmission:  6-speed w/multi-plate clutch later 2006LE 6-speed w/multi-plate slipper clutch

Model Year:  2007-2008
Engine type:  998 cc, liquid-cooled, 16-valve, DOHC, inline four-cylinder
Fuel delivery:  Fuel Injection with YCC-T and YCC-I
Bore x stroke:  77 × 53.6 mm (3.0 × 2.11 in)
Compresion Ratio:  12.7:1
Power:  152.9 hp (114.0 kW) @ 10160 rpm, 156.7 hp (116.9 kW)
Torque:  75.5 lb·ft (102.4 N·m), 73.6 lb·ft (99.8 N·m) @ 8150 rpm
Transmission:  6-speed w/multi-plate slipper clutch


Model Year:  2009-2010
Engine type:  998 cc, liquid-cooled, 16-valve (titanium valves), DOHC, in-line four-cylinder engine with “crossplane” style crankshaft
Fuel delivery:  Fuel Injection with YCC-T and YCC-I
Bore x stroke:  78 × 52.2 mm (3.1 × 2.06 in)
Compresion Ratio:  12.7:1
Power:  146.2 hp (109.0 kW) @11500
Torque:  72.6 lb·ft (98.4 N·m)
Transmission:  6-speed w/multi-plate slipper clutch

Second hand Yamaha R1 engines can commonly be picked from around £500.00 -£1000.00