ENGINE body accessories handlebar & grips cables & levers electrical & ignition engine fuel & intake clutch brakes drive steering & suspension bearings tires exhaust chemicals tools & shop 478 www.autodist.com | 207-942-6769 WISECO FORGED POWERSPORTS PISTONS CONTINUED PRICING AT THE END OF APPLICATION YEAR BORE X STROKE BORE SIZE TOP END KIT SINGLE PISTON RING SET PISTON PIN CIRCLIP TOP END GASKET KIT TOP END BEARING SLEEVE YAMAHA (2-STROKE) CONTINUED YZ 250 76-1979 70.0 70.00 ----- 103871 2756CD S343 CW18 ----- B1003 ----- IT 250 78-1980 x 70.50 103872 2776CD DT 250 74-1979 64.0 71.00 103873 2795CD MX 250 73-1975 71.50 102269 2815CD 72.00 102270 2835CD YZ 250 80-1982 70.0 70.00 ----- 101293 2756CD S343 CW18 ----- B1003 ----- IT 250 81-1982 x 70.25 101294 2776CD 64.0 70.50 101295 2795CD 70.75 102820 2815CD 71.00 102821 2835CD IT 250 1983 68.0 68.00 ----- 515M06800 2677CD S511 CW18 ----- B1014 ----- x 68.50 515M06850 2697CD 68.0 69.00 ----- 2717CD 69.50 515M06950 2736CD 70.00 515M07000 2756CD YZ 250 83-1987 68.0 68.00 ----- 560M06800 2677CD S511 CW18 100362 B1014 ----- * Power Valve must be x 68.50 560M06850 2697CD 1986-1987 modified for 69mm and larger 68.0 69.00 560M06900 2717CD 69.50 103358 2736CD 70.00 103359 2756CD YZ 250 88-1991 68.0 68.00 103949 605M06800 2677CD S508 CW18 W5168 B1014 ----- WR 250 1991 x 68.50 103950 605M06850 2697CD * Power Valve must be 68.0 69.00 103951 605M06900 2717CD modified for 69mm and larger * 1991 model is Nikasil bore 69.50 102830 2736CD 70.00 103308 102831 2756CD YZ 250 92-1998 68.0 68.00 ----- 736M06800 2677CS S508 CW18 W5168 B1014 ----- x 1988-1994 68.0 W5467 1995-1998 YZ 250 92-1994 68.0 68.00 101624 677M06800 2677CD S508 CW18 W5168 B1014 ----- WR 250 92-1994 x 68.50 101625 677M06850 2697CD 68.0 69.00 101626 677M06900 2717CD 70.00 102062 103107 2756CD YZ 250 95-1998 68.0 68.00 103334 677M06800 2677CD S508 CW18 W5467 B1014 ----- WR 250 95-1998 x 68.50 103335 677M06850 2697CD 68.0 69.00 103336 677M06900 2717CD 70.00 103578 103107 2756CD YZ 250 99-2001 66.4 66.40 101398 804M06640 2614CD S508 CW18 W5744 B1003 102644 x 68.50 102731 804M06850 2697CD 72.0 YZ 250 02-2022 66.4 66.40 101267 804M06640 2614CD S508 CW18 W5978 B1003 102644 YZ 250 X 16-2022 x 67.00 101268 804M06700 2638CD YZ 250 72.0 67.50 101269 804M06750 2658CD 68.50 101964 804M06850 2697CD YZ 250 02-2022 66.4 66.40 102662 808M06640 2614CS S508 CW18 W5978 B1003 102644 YZ 250 X 16-2022 x YZ 250 72.0 YZ 250 99-2022 66.4 72.00 ----- 112196 2835CD S508 CW18 ----- B1003 ----- * Note: Cylinder, cylinder head, x and powervalve 72.0 modifications required DT 400 75-1978 85.0 85.00 ----- 102825 104345 S277 CW18 ----- B1003 ----- MX 400 75-1976 x 85.50 102826 104346 70.0 86.00 102827 3386TD 86.50 101532 3405TD IT 400 77-1978 85.0 85.00 ----- 112104 104345 S277 CW18 ----- B1003 ----- YZ 400 77-1978 x 85.50 101519 104346 70.0 86.00 101520 3386TD 86.50 103190 3405TD 87.00 112106 3425TD IT 465 81-1982 85.0 85.50 ----- 101182 104346 S277 CW18 ----- B1014 ----- YZ 465 80-1981 X 86.00 101183 3386TD 82.0 86.50 103361 3405TD IT 490 83-1984 87.0 87.00 ----- 103858 3425TD S277 CW18 W4055 B1014 ----- YZ 490 82-1983 x 87.50 103859 3445TD 1983 82.0 88.00 103860 3465TD 88.50 102411 104352 89.00 102412 3504TD YZ 490 84-1990 87.0 87.00 103061 546M08700 3425TD S277 CW18 W5286 B1014 ----- WR 500 92-1993 x 87.50 103062 546M08750 3445TD 82.0 88.00 103063 546M08800 3465TD 88.50 102657 101228 104352 89.00 102658 101229 3504TD
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