 |
| HOME | SPECIFICATION | MODEL HISTORY | R1 GALLERY |
| MY BIKES | GUESTS GALLERY | FUN STUFF | LINKS |
 |
|
ENGINE
|
 |
|
|
ONE-PIECE
CYLINDER/CRANKCASE
|
|
| Utilising the most advanced casting techniques, the one-piece cylinder and upper crankcase make for immense engine rigidity together with reduced weight. While chrome-composite plated bores ensure higher durability and improved heat dispersion. | |
 |
 |
|
|
TRANSMISSION/CRANKSHAFT
LAYOUT
|
|
| Large-capacity outer-pull clutch handles the R1's awesome power, and ultra short engine dimensions are achieved by the use of an innovtive 3-axis transmission featuring a vertically stacked mainshaft and driveshaft. | |
|
|
 |
|
|
PISTON/CONROD
CRANK ASSEMBLY
|
|
| Racing specification engine internals include drop-forged low-friction pistons with lightweight pins. carburised con-rods and small diameter crankshaft which work together to deliver remarkable throttle response and bullet-proof high rpm durability. | |
|
|
 |
|
|
NARROW ANGLE
5 VALVE HEAD
|
|
| Featuring extremely narrow valve angles, Yamaha's highly efficient 5-valve head and compact combustion chamber design give superior combustion for stronger power right through the rpm range. | |
|
|
 |
|
|
EXUP
|
|
| Monitering four engine variables, the latest generation 'intelligent' EXUP system delivers a massive power boost between 5,000 rpm and 7,500 rpm by constantly adjusting the exhaust pipe's internal aperture. | |
|
|
 |
|
|
CARBURETTORS/AIR
CLEANER
|
|
| Sucking cool, fresh air through a large-capacity dual-intake airbox, the big bore BDSR 40 mm TPS-equipped carburettors feed a precisely metered explosive mixture via 12 inlet valves for opitimal performance at all speeds. | |
|
|
 |
|
|
5-VALVE HEAD/SIDE
DRIVE DOHC CAMS
|
|
| Side-drive DOHC system keeps engine width to a minimum and allows use of equally spaced cylinders and straight inlet tracts for improved performance. And for reduced weight there's a magnesium valve cover. | |
|
|
 |
|
|
OIL COOLER/OIL
FILTER/WATER PUMP
|
|
| Another space-saving design is the built in water pump which helps make this motor the most compact in its class. And for consistently high performance an easily accessible oil filter and oil cooler is fitted. | |
|
|
| HOME | SPECIFICATION | MODEL HISTORY | R1 GALLERY |
| MY BIKES | GUESTS GALLERY | FUN STUFF | LINKS |