Specifications - Suzuki RM250 Owner's Service Manual

SPECIFICA nONS
DIMENSIONS AND DRY MASS
Overall length ............. . .. . .•...
Overall width . . . . . . . . . . . . . . . . . . . • ...
Overall height . . . . . . . . . . . . . . . . ..... .
Wheelbase . ...... . . . . . . .. .. . . . .. . . .
Ground clearance . ..... . . . .. . . . .. . .. .
Seat height ...... ...... . .......... .
Dry mass . . .... . ........ . ... . ..... .
ENGINE
Type ...... . . . . . . . . . . . . . . . ....... .
2 165 mm (85.2 in)
835 mm (32 .9 in)
1 250 mm (49 .2 in)
1 465 mm (57 .7 in)
360
mm
114.2
in)
960 mm (37 .8 in)
98 kg (2 16Ibs)
Two -stroke water-cooled
Intake system. .. . . . .... . .... . . . .... Crankcase reed valve
Number of cylinder. . . . . . . . . . . . . . . . .. ,
Bore , .. .. ... .. ....... . .. . .... . ... 67.0 mm (2 .638 in)
Stroke . .... . . . . . . . . . . . . . . . . . . . . . . . 70.8 mm (2 . 787 in)
Piston displacement ......... . ........ 249 em] (15 . 2 cu . in)
SPECifiCATIONS 20·1
Corrected compression ratio ............ 8 . 7 : 1 (EX VALVE OPEN) and 10.4: 1
Carburetor . ... .. . . ....... . .... . .... KEIHIN PJ38 , single
Air cleaner . . . . . . . . . . . . . . . . . . . . . . . . . Polyurethane foam element
Starter system. . . . . . . . . . • . . . . . . . . . . . Primary kick
Lubrication system . ......•.... • ...... Fuel/oil premixture of 32 : 1
TRAN SMISSION
Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . .. Wet multi-plate type
Transmission . . . . . . . . . . . . . . . . . . . . . . . 5-speed constant mesh
Gearshift pattern . . . . . . . . . . . . . . . . . . .. l -down. 4 -up
Primary reduction . . . . . . . . . . . . . . . . . . . 2. 652
(61 / 23)
Final reduction . .. . ........ . ......... 3. 769 (49 / 13)
Gear rati os, Low . . ... . .... . . . .. . .... 2 . 153 (28 / 13)
2nd. . . . . . . . . . . • . • . • . . .. 1.705 (29 / 17)
3rd . . . . . . . • . . . . . . . . . . .. 1.41 1 (24117)
4th . . . . . . . • . . . . • . . . . . .. 1. 157 (22119)
Top .... . ............... 1.000
(23 /23)
Drive cha in ........ . .. . .. . . . . . . .... OAIDO: 0 .1.0. 520055 112 links