Cycle News is a weekly magazine that covers all aspects of motorcycling including Supercross, Motocross and MotoGP as well as new motorcycles
Issue link: https://magazine.cyclenews.com/i/127801
Suzuki RM2S0V Ust price NI A Displacement 249.3cc Engine type liquid-cooled, single..... , , , ,cylinder two-stroke Bore x stroke 66.4 x 72mm Compression ratio , .9.0-10.9: 1 Carburetion Keihin PWK38 Ignition Electronic Transmission , 6-speed Starting system Kick Fuel capacity .. , . , .. , .2,2 gal. Wheelbase 58,3 Ibs. Seat height _ 37.4 in. Front tire ,, 80/100-21 Reartire " , .. 110/90-19 Front-wheel travel .. , .11.4 in, Rear-wheel travel 12,6 in. Front brake .Disc Rear brake .Disc Claimed dry weight 213Ibs. Suzuki RM2SOV cha.....s for 1997 • Went to black radiator shrouds with new graphics. • Received a new exhaust valve CAETC/PCJ which provides a three-stage (low, middle, and high-rpm) transition for more smooth and linear power. • Revised cylinder head, combustion chamber. port timing. and exhaust system for improved power output. • New Keihin PWK38 carburetor with· fins· for improved throltle response. • Revised friction and steel drive plates in clutch reduce play and improve the feel and durability. • Crankcase rigidity has been improved and the transmission reduction ratio went from 49/13 to 50113 for smoother power delivery. • Revised rake angle, and the frame downtube diameter was increased for more rigidity. • Strengthened front hub. _ • Conventional twin chamber cartridge fork's below-axle extension is shortened by 20mm for less underhang by slightlY reducing suspension stroke, and larger volume cartridges were used for better overall performance. • Revised shock linkage for progressive action and increased wheel travel (3mmJ, Yamaha YZ125 list price Displacement Engine type, . , Yamaha YZ125 changes for 1997 • Went to blue front fender, number plate and Team Yamaha graphics. • Reduced piston and piston-pin weight for belter high-speed response and perfor- Yamaha Motor Corp. USA 6555 Kat.lla Ave., Cypress, CA 90630, (714) 761·7617 Yamaha YZ80 list price . , $3149 Displacement 82.9cc Engine type . . . . .. . ..liquid-cooled, single.....cylinder two-stroke Bore x stroke .47 x 47.8mm Compression ratio 8.2: 1 Carburetion Mikuni VM26SS Ignition .. , ,COl Transmission 6-speed 1.32 gal. Fuel capacity, . , Wheelbase _: .. .49.5 in. Seat height , __ ,33.6 in. Fronttire .. , , . .70/100- 17 Reartire 90/100-14 Front-wheel travel 10.8 in. Rear-wheel travel 11.1 in. Front brake . . . . . . .. 220mm disc ", 190mm disc Rear brake ., Claimed dry weight ,146 lbs. Yamaha YZ80 changes for 1997 • Went to blue front fender, number plate and Team Yamaha graphics. • Port timing, compression ratio and combustion-chamber volume were changed for greater reliability. • Ignition timing was changed to improve lowspeed performance. • Strengthened first and second gear, and the shift fork was redesigned for increased performance and durability. • Front·brake master cylinder is now the same as YZ125/250. • Uses 1996 YZ125/250's larger footpegs. • Material of rear sprocket was changed for longer wear. $4 799 124cc liquid-cooled, single....cylinder two-stroke Bore x stroke ... . ..54 x 54.5mm Compression ratio .... ,8.5-10.4: 1 Carburetion , . . . . .. ,Mikuni TMX36SS Ignition .. . CDI Transmission 6-speed Starting system Kick Fuel capacity 2.11 gal. Wheelbase 56.9 in. Seat height, 38.7 in. Front tire 80/100-21 Rear tire .. . 100/90-19 Front-wheel travel 11.8 in. Rear-wheel travel , 12.4 in. Front brake .. . 245mm disc Rear brake , ..220mm disc Claimed dry weight 193 Ibs. Yamaha YZ250 list price . . . . . . . Displacement Engine type cylinder two-stroke Bore x stroke Compression 'ratio Carburetion Ignition Transmission . . . . Starting system Fuel Capacity Wheelbase Seat height Front tire Reartire Front-wheel travel Rear-wheel travel-12-.4 Front brake Rear brake Claimed dry weight $5599 249cc liquid-cooled, single68 x 68.8mm 9.0-10.4: 1 Keihin PWM38 . .CDI . .5-speed Kick 2.11 gal. 58.6 in. 38.5 in. ,80/100-21 110/90-19 11.8 in. in. 245mm disc 220mm disc 214 Ibs. Yamaha YZ250 changes for 1997 • Went to blue front fender, number plate and Team Yamaha graphics. • New combustion chamber design and porting specifications increase power at all lev· els. • Went from a six-petal reed valve to a fourpetal design for greater throttle response. • The dog angle of the transmission gears was changed for smoother operation. • Wall tubing thickness in the frame was increased and the headtube gusset was strengthened. • New larger and stronger footpegs, • Weight-reduction holes in the front disc are changed in shape for greater braking perfor- mance. • Front forks now utilize a non-circulating system and the mid-valves were changed to keep the bike riding higher in the stroke. • Front and rear spring rates are stiffer. • New straighter and taller bend handlebars. mance. • Gap between YPVS valve and piston was shortened for belter performance in the low to mid power range. • First and second gear in the transmission were strengthened for durability. • Exhaust pipe was shortened to boost power across the board. • New larger and stronger footpegs. • Weight-reduction holes in the front disc are changed in shape for greater braking performance. • Front forks now utilize a non-circulating system and the mid-valves were changed to keep the bike riding higher in the stroke. • Front and rear spring rates are stiffer. • New straighter and taller bend handlebars.