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/127222
Yamaha BWBO List Price •.••..........•• $1 099 Displacement ...........•. 79cc Engine type .....•.. •. Air-cooled. single cylinder. two-stroke Bore x Stroke .•..... 47x45.6mm Compression ratio 6 .6:1 Carburetion . . • . (1)15mm Mikuni Ignition . . . . . . .• . . . . . . . . " _COl .. Transmission speeds . •. . ... ... 3 Starting system •.....•..... Kick Fuel capacity . . . . . . . . . .. 1.1 gal. Wheelbase 42.9 in . Rake/trail 26.2°/2.13 in. Seat height . •........... 24.8 in. Fronttire ..........•... 19x7-10 Rear tire ......•......... 19x9-7 Front wheel travel • . •.. . .. 4.4 in . Rear wheel travel . . . _•• . . . 4.4 in . Front brake . . . . . • . . . . . . .. . Drum Rear brake .. . .. .. . .. . .. . •Drum Final drive .. ....•........ Cha in Claimed dry weight •... . 146 Ibs . Yamaha DT LIC List Price $1449 Displacement ...... ..•.. 49.3i:c Engine type . . • • • •. Liquid-cooled. single cylinder. two-stroke Bore x Stroke 40x39.2mm Compression ratio 6.5:1 Carburetion .... (1)16mm Mikuni Ignition ... • •. • . . ••.•...... COl Transmission speeds .... . .. • . •6 Starting system Kick Fuel capacity ... ..... . •2 .25 gal. Wheelbase 48.6 in . Rake/trail 28.33°/3.86 in. Seat height 30.9 in . Front tire ... ... .... ... •2 .50x19 Rear tire 3 .00x17 Front wheel travel 6.69 in. Rear wheel travel . •. ... . 5.91 in. Front brake Drum Rear brake . .. .. • .. . ...... Drum Final drive ... •.. .. . ...... Chain Claimed dry weight . .. . . 165 Ibs. Yamaha YSR50 ListPrice $1499 Displacement 49cc Engine type . .•. .. . ... Air-cooled. single cylinder. two-stroke Bore x Stroke 40x39 .2mm Compression ratio 7 .4:1 Carburetion . . . •(1)16mm Mikuni Ignition : •. • • .• . . . . •COl Transmission speeds • . .•••.• . . 5 Starting system Kick Fuel capacity •.•.. .... • . 2.1 gal. Wheelbase . . . • • . •• . . . . . 41.5in. Rake/trail .. . • .• • .". 2 6 ° / 2 .64 in . Seat height . . . .. . . .. • • .. 26.0 in. Front tire 3 .50x12 Rear tire 4 .00x12 Front wheel travel • .. . . . • . 6.5 in . Rear wheel travel . . . . . ... •3.0 in. Front brake Disc Rear brake Drum Final drive Chain Claimed dry weight 165 Ibs. Yamaha Y-Zinger List Price . . . • . .. ... . .. .. .. $799 Displacement 49cc Engine type . .. . . . • . . . Air-cooled. single cylinder. two-stroke Bore Stroke 40x39.2mm Compression ratio 6 :1 Carburetion . •.. (1) 12mm Mikuni Ignition COI Transmission speeds Automatic Starting system Kick Fuel capacity 0 .5 gal. x Wheelbase . . . . . • .. •.. . . 33.7 in . Rake/trail .• .. .. . 25 .5 ° i 1 .97 in . Seat height 19.1 in. "Front tire ; 2.50x1 0 Rear tire . •. . . . . . . . • .• . 2.50x1 0 Front wheel travel 2.4 in . Rear wheel travel 2.0 in. Front brake -Drum Rear brake Drum Final drive Chain Claimed dry weight 82 Ibs. 1111I1 Eastern distributor Tryals Shop "Western distributor Section One Trials Products 6106 Land O' Lakes Blvd. Land O' Lakes. FL 34639 445-B Prado Rd. San Luis Obispo. CA 93401 813/996-3754 805/543-7358 Fantic Trial 307 List Price $4295 Displacement 249.4cc Engine type Air-cooled. single cylinder. two-stroke Bore x Stroke 74x58mm Compression ratio 10.4:1 Carburetion (1) 26mm Dell'orto Ignition COl Transmission speeds . .. . . . •.. . 6 Starting system .... ... . . • .. Kick Fuel capacity .9 1 gal. Wheelbase •. . ...... .. . . .. " N / A . Rake/trail •. .. .. .. . . . ... . . N / A Seat height N /A Front tire 2 .75x21 Rear tire 4 .00x18 Front wheel travel . • . . . . .. 6.8 in. Rear wheel travel 7.2 in. Front brake Discs Rear brake Disc Final drive Chain Claimed d ~y weight 175 lbs,