19-20 SERVICE DATA
SPECIFICATIONS
DIMENSIONS AND DRY MASS
Overall length....................................................... 2 175 mm (86.5 in)
Overall width ........................................................ 840 mm (33.1 in)
Overall height ...................................................... 1 280 mm (50.4 in)
Wheelbase........................................................... 1 470 mm (57.9 in)
Ground clearance ................................................ 350 mm (13.8 in)
Seat height........................................................... 950 mm (37.4 in)
Dry mass.............................................................. 96 kg (212 lbs)
ENGINE
Type ..................................................................... Two-stroke, liquid-cooled
Intake system....................................................... Piston reed valve
Number of cylinders............................................. 1
Bore ..................................................................... 66.4 mm (2.614 in)
Stroke................................................................... 72.0 mm (2.834 in)
Piston displacement............................................. 249 cm
3
(15.2 cu. in)
Corrected compression ratio................................ 8.8 : 1 (EX VALVE OPEN) and 10.6 : 1
(EX VALVE CLOSE)
Carburetor............................................................ KEIHIN PWK38PWJ/TPS, single
Air cleaner............................................................ Polyurethane foam element
Starter system...................................................... Primary kick
Lubrication system............................................... Fuel/oil premixture of 30 : 1
TRANSMISSION
Clutch................................................................... Wet multi-plate type
Transmission ........................................................ 5-speed constant mesh
Gearshift pattern.................................................. 1-down, 4-up
Primary reduction................................................. 3.000 (63/21)
Final reduction ..................................................... 3.846 (50/13)
Gear ratios, Low.................................................. 1.800 (27/15)
2nd................................................... 1.470 (25/17)
3rd ................................................... 1.210 (23/19)
4th.................................................... 1.000 (21/21)
or 5th ............................................... 0.869 (20/23)
Drive chain........................................................... D.I.D. 520DM, 114 links
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