OS Engine Chart


OS 2-Stroke Engines
Engine Disp.(c.c.) Bore (mm) Stroke (mm) Output (PS or BHP/r.p.m.) Practical Range (r.p.m.) Weight (g)
Max-BGX-1Ring 34.97 37.3 32.0 4.1 / 10,000 1,500-10,000 1,340
Max-108 FSR Ring (BX-1) 17.83 29.0 27.0 3.0 / 16,000 2,000-16,000 750
Max-61 RF ABC-P 9.97 23.0 24.0 2.0 / 16,000 2,000-17,000 580
Max-61 RF ABC 9.97 23.0 24.0 1.85 / 16,000 2,000-17,000 540
Max-61 SF ABC-P 9.97 23.0 24.0 2.0 / 16,000 2,000-17,000 580
Max-61 SF Ring-P 9.97 23.0 24.0 2.0 / 16,000 2,000-17,000 575
Max-61 SF ABC 9.97 23.0 24.0 1.85 / 16,000 2,000-17,000 540
Max-61 SF Ring 9.97 23.0 24.0 1.85 / 16,000 2,000-17,000 535
Max-60 FP 9.97 23.0 24.0 1.6 / 15,000 2,000-16,000 510
Max-46 VF ABC-P 7.45 22.0 19.6 1.55 / 16,000 2,000-17,000 366
MAX-46 VF ABC 7.45 22.0 19.6 1.43 / 16,000 2,000-17,000 362
MAX-46 FX 7.45 22.0 19.6 1.62 / 16,000 2,000-17,000 375
MAX-46 SF ABC-P 7.45 22.0 19.6 1.55 / 16,000 2,000-17,000 346
MAX-46 SF Ring-P 7.45 22.0 19.6 1.55 / 16,000 2,000-17,000 344
MAX-46 SF ABC-R 7.45 22.0 19.6 1.43 / 16,000 2,000-17,000 342
MAX-46 SF ABC 7.45 22.0 19.6 1.43 / 16,000 2,000-17,000 342
MAX-46 SF Ring 7.45 22.0 19.6 1.43 / 16,000 2,000-17,000 340
MAX-40 FX 6.47 22.5 19.6 1.36 / 16,000 2,000-17,000 386
MAX-40 SF ABC 6.47 22.5 19.6 1.22 / 16,000 2,000-17,000 360
MAX-40 SF Ring 6.47 22.5 19.6 1.22 / 16,000 2,000-17,000 358
MAX-40 FP 6.49 21.2 18.4 1.00 / 15,000 2,000-16,000 248
MAX-35 FP 5.90 20.2 18.4 0.8 / 14,000 2,000-16,000 256
MAX-32 SX 5.23 19.5 17.5 1.2 / 18,000 2,000-22,000 270
MAX-32 F ABC 5.23 19.5 17.5 1.02 / 16,000 2,000-17,000 235
Max-25 VF ABC 4.07 18.0 16.0 0.85 / 18,000 2,500-19,000 230
Max-25 FX 4.07 18.0 16.0 0.84 / 18,000 2,500-19,000 248
Max-25 SF ABC 4.07 18.0 16.0 0.8 / 18,000 2,500-19,000 218
Max-25 SF 4.07 18.0 16.0 0.7 / 16,000 2,500-17,500 215
Max-25 FP 4.07 18.0 16.0 0.6 / 15,000 2,500-16,000 185
Max-20 FP 3.46 16.6 16.0 0.5 / 15,000 2,500-16,000 193
Max-15 FP 2.49 15.2 13.7 0.41 / 17,000 2,500-18,000 142
Max-10 FP 1.76 13.44 12.4 0.27 / 17,000 2,500-18,000 119
Max-40 PS 6.49 21.2 18.4 24,000-30,000 380
Max-CZ-11PS 1.79 13.44 12.65 0.6 / 30,000 20,000-32,000 139
OS 4-Stroke Engines
Engine Disp.(c.c.) Bore (mm) Stroke (mm) Output (PS or BHP/r.p.m.) Practical Range (r.p.m.) Weight (g)
FR5-300 (Sirius) 9.95 x 5 24.0 22.0   1,800-8,500 2,670
FF-320 (Pegasus-320) 13.26 x 4 27.7 22.0   1,800-9,000 2,190
FT-300 (Super Gemini-300) 24.38 x 2 33.6 27.5   1,800-9,000 1,828
FT-160 (Gemini-160) 13.26 x 2 27.7 22.0   2,000-10,000 1,100
FT-120II (GiminiII) 9.95 x 2 24.0 22.0   2,000-10,000 1,090
FS-120S-SP 19.96 30.4 27.5 2.5 / 10,000 2,000-11,000 1,030
FS-120SII 19.96 30.4 27.5 2.1 / 12,000 2,000-12,000 980
FS-120S-E 19.96 30.4 27.5 1.9 / 11,000 2,000-11,000 864
FS-91S 14.95 27.7 24.8 1.6 / 11,000 2,000-12,000 630
FS-70S 11.50 25.8 22.0 1.1 / 11,000 2,000-12,000 570
FS-52S 8.56 23.0 20.6 0.9 / 12,000 2,300-13,000 402
FS-48S 7.89 23.0 19.0 0.8 / 12,000 2,200-12,000 412
FS-40S 6.49 21.2 18.4 0.65 / 12,000 2,200-12,000 355
FS-26S 4.41 18.5 16.4 0.41 / 11,000 2,200-12,000 260