1969 Triumph TR25W Parts Book

I . ' \ ·. ' .. I • ,r. . .f.,,,, . ' . . ' TROPHY 250 TECHNICAL DATA Bore and strok e ... . .. 67 x 70 mm . Capacit y . . . .. . . . . . .. 249 c.c . . . -~ Comp res sion ra t io ":' I I I .. . .. . .. 9.6 : 1 ' ., Spar king plug . .. .. . . . . .. . .. .. . . .. Champion N3 • ' . , Ca rbur ett or • I I I .. . . . .. . • •• . . . .. . . .. . Amal Concentric .92ij. . \ Choke size 28 mm. . . . ' - - Main Jet . .. . .. . .. • •• 1'60 c Needle jet ... . . .106 . . . Needle Standard .. . ... Thrott le valve No. 3 ' . Gearb ox spr ocket - 15 teeth . .. . . . .. i ,· Final Driv e Sprocket 1" 1 I 52 teeth East Coast ., 49 teeth West Coast· ) Chains Front ~ in. x 372 .In. Duplex x 70 links t Rear· ... . . . . .. : In. x ! In. x 1 01 J ln ks East Coast : in. x ! in. x 99 links Wesf ·coast' Cap aciti es ... . .. Fuel tank ... . .. .. . 3.916 galls. U.S . Oil tank .... ... .. . 6 pints Gearbox ... .. . .. . . . ~ pint ' Primary chalncase ! pint . .. Front forks (each leg) ... . . ~ pint i:'' ' Brakes ... .. . .. Front and rear diameter . . . .. . 7 in. Tyre size Front Rear .. 3.25 x 18 4.00 x 18 , 4 ' J. J 1 l . . l ';' I I I l . . ., I