Specifications; Dimensions And Dry Mass; Engine; Transmission - Suzuki RM125 Owner's Service Manual

18-20 SERVICING INFORMATION

SPECIFICATIONS

DIMENSIONS AND DRY MASS

Overall length ....................................................... 2 145 mm (84.4 in)
Overall width ........................................................
Overall height ...................................................... 1 275 mm (50.2 in)
Wheelbase ........................................................... 1 450 mm (57.1 in)
Ground clearance ................................................
Seat height...........................................................
Dry mass..............................................................

ENGINE

Type ..................................................................... Two-stroke, liquid-cooled
Intake system....................................................... Crankcase reed valve
Number of cylinders ............................................. 1
Bore ..................................................................... 54.0 mm (2.126 in)
Stroke................................................................... 54.5 mm (2.146 in)
Piston displacement............................................. 124 cm
Corrected compression ratio................................ 8.3/9.9 : 1 (Ex valve open/Ex valve close)
Carburetor............................................................ MIKUNI TMX38SS 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 ........................................................ 6-speed constant mesh
Gearshift pattern .................................................. 1-down, 5-up
Primary reduction ratio......................................... 3.368 (64/19)
Final reduction ..................................................... 4.250 (51/12)
Gear ratios, Low ................................................... 2.071 (29/14)
2nd.................................................... 1.687 (27/16)
3rd .................................................... 1.444 (26/18)
4th..................................................... 1.200 (24/20)
5th..................................................... 1.052 (20/19)
Top.................................................... 0.950 (19/20)
Drive chain ........................................................... D.I.D 520DMA2, 114 links
830 mm (32.7 in)
350 mm (13.8 in)
950 mm (37.4 in)
87 kg (192 lbs)
(7.6 cu. in)
3