x X X X X 903 AUDIO / VIDEO / NAVIGATION EXHAUST BODY / FRAME GRAPHICS / SEATS OFFROAD LUGGAGE SNOW BIKE SECURITY HANDLEBARS / CONTROLS LEVERS CABLES FOOTPEGS / FOOT CONTROLS INTAKE / FUEL SYSTEMS AIR FILTERS OIL FILTERS LIGHTING / GAUGES BATTERIES / CHARGERS ELECTRICAL SPARK PLUGS ENGINE PISTONS CLUTCH / DRIVE SUSPENSION / BEARINGS CHAIN SPROCKETS BRAKES PIT BIKE CHINESE VEHICLE PARTS GAS CANS STANDS TRANSPORT / RAMPS PROMOTIONAL REFERENCE INDEX Application Bore x Stroke mm Disp. (cc) Bore Size mm Sizes In. WPS# List Repl. Ring Set Repl. Circlips Wrist Pin Top End Bearing YAMAHA 2 CYCLE (CONT’D...) 250YZ,G,H,J 80-82; IT250, `81-82 70 x 64 246 70 STD 452PS $180.74 2756CD Circlips CW-18 IT250 `81-82 70.5 0.020 2776CD Wrist pin S-343 B1003 71 0.040 452P4 $180.74 2795CD YZ250 `80-81 71.5 0.060 452P6 $202.78 2815CD B1003 72 0.080 452P8 $202.78 2835CD YZ250 `82 B1014 IT250, `83 PRO-LITE 68 x 68 246.8 68 STD 515PS $182.52 2677CD Circlips CW-18 B1014 68.5 0.020 515P2 $182.52 2697CD Wrist pin S-511 69 0.040 515P4 $182.52 2717CD YZ250, `83-87 PRO-LITE 68 x 68 246.8 68 STD 560PS $180.74 2677CD Circlips CW-18 B1014 Power Valve must be modified 68.5 0.020 560P2 $180.74 2697CD Wrist pin S-511 for .040 and larger 69 0.040 560P4 $180.74 2717CD 69.5 0.060 560P6 $202.78 2736CD 70 0.080 560P8 $202.78 2756CD YZ250, WR250 `88-91 68 x 68 246.8 68 STD 605PS $180.74 2677CD Circlips CW-18 B1014 PRO-LITE 68.5 0.020 605P2 $180.74 2697CD Wrist pin S-508 Power Valve must be modified for 69 0.040 605P4 $180.74 2717CD .040 and larger. 91 model is 69.25 0.050 2727CD Ceramic Composite. 69.5 0.060 605P6 $202.78 2736CD Cylinder sleeving for oversizes 70 0.080 605P8 $202.78 2756CD YZ250, `92-98; WR250, `92-98 PRO-LITE 68 x 68 246.8 68 STD 677PS $180.74 2677CD Circlips CW-18 B1014 Cylinder sleeving required for oversizes. Double ring 68.5 0.020 677P2 $180.74 2697CD Wrist pin S-508 69 0.040 677P4 $180.74 2717CD 70 0.080 677P8 $202.78 2756CD YZ250,`92-98 PRO-LITE, 68 x 68 246.8 68 STD 736PS $180.74 2677CS Circlips CW-18 B1014 Cylinder sleeving required for oversizes. Single ring Wrist pin S-508 YZ250, `99-22 PRO-LITE 66.4 x 72 249 66.4 STD 804PS $142.17 2614CD Circlips CW-18 B1003 YZ250X, `16-22 67 0.024 804P2 $169.72 2638CD Wrist pin S-508 Ceramic Composite, Cylinder sleeving required for oversizes 67.5 0.043 804P4 $169.72 2658CD 68.5 0.082 804P8 $202.78 2697CD YZ250, `99-22, Racers Choice 66.4 x 72 249 66.4 STD 808PS $191.76 2614CS Circlips CW-18 B1003 YZ250X, `16-22 Wrist pin S-508 Single ring, Electra coated YZ250, `02-22, Racer Elite 66.4 x 72 249 66.4 STD RE902PS $224.82 2614CS Circlips CW-18 B1003 YZ250X, `16-22 Wrist pin S-508 ArmorPlating, ArmorFit YZ250, `99-22 (300cc Big Bore) 72 x 72 293 72 0.224 878PS $224.82 2835CD Circlips CW-18 B1022 Cylinder, cylinder head, and powervalve modifications required Wrist pin S-508 ArmorGlide skirt coated; Titanium Nitride rings 400 DT, MX `75-78 85 x 70 397 85 STD 3347TD Circlips CW-18 B1003 Reed Cutaway 85.5 0.020 232P2 $191.76 3366TD Wrist pin S-277 86 0.040 232P4 $191.76 3386TD YZ400 C,D,E,IT `76-78 85 x 70 397 85 STD 3347TD Circlips CW-18 B1003 Reed Cutaway 85.5 0.020 394P2 $191.76 3366TD Wrist pin S-277 86 0.040 3386TD 86.5 0.060 394P6 $202.78 3405TD 87 0.080 3425TD YZ465 G,H,IT `80-81 85 x 82 465 85 STD 3347TD Circlips CW-18 B1014 Reed Cutaway 85.5 0.020 451P2 $213.81 3366TD Wrist pin S-277 86 0.040 3386TD 86.5 0.060 451P6 $224.82 3405TD YZ490 J,K `82-83; IT490, `83-84 87 x 82 487 87 STD 478PS $213.81 3425TD Circlips CW-18 B1014 87.5 0.020 478P2 $213.81 3445TD Wrist pin S-277 12-1413 88 0.040 478P4 $213.81 3465TD 89 0.080 478P8 $224.82 3504TD YZ490N, `84-90; WR500, `91-93 87 x 82 487 87 STD 546PS $213.81 3425TD Circlips CW-18 B1014 PRO-LITE 87.5 0.020 546P2 $213.81 3445TD Wrist pin S-277 12-1413 Not supplied with Wrist Pin 88 0.040 546P4 $213.81 3465TD 88.5 0.060 546P6 $224.82 3484TD 89 0.080 546P8 $224.82 3504TD All kits come with pistons, rings and circlips. Wrist Pin is included, except when noted. For replacement ring pricing, see page 909 PISTONS
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