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2017moto_en

984 WISECO PISTONS Model Years Compression Ratio Stock Engine Bore x Stroke Bore Size Piston Type and Coatings Cylinder and Machining Requirements Top End Kit MTV # Single Piston MTV # Ring Set MTV # Piston Pin MTV # Circlip MTV # Top End Bearing MTV # Yamaha 4-Stroke (cont.) YZ250F YZ250FX WR250F 14-15 15-16 15-16 14:1 77.0 77.0 ArmorGlide Deglaze / Hone PK1911 316-3944 40127M07700 316-0765 7700YC 316-4750 S677 316-3199 CW16 316-1903 x 53.6 YZ250F YZ250FX WR250F 14-15 15-16 15-16 14:1 77.0 77.0 Racers Choice Deglaze / Hone RC903M07700 316-0806 7700YCA 316-3861 S677C 316-0669 CW16 316-1903 x ArmorGlide 53.6 ArmorPlating DLC Piston Pin Titanium Nitride coat ed rings YZ250F 2016 13.5:1 77.0 77.0 Deglaze / Hone 40151M07700 316-8292 7700YC 316-4750 S677 316-3199 W6883 316-3866 x 53.6 YZ250F 2016 14:1 77.0 77.0 Deglaze / Hone 40155M07700 316-8288 7700YC 316-4750 S677 316-3199 CW16 316-1903 x 53.6 TT350 XT350 85-98 85-00 9:1 86.0 86.0 Deglaze / Hone 4674M08600 379-5546 3386XC 316-3046 S475 316-3194 CW19 316-1911 x 87.0 Bore & Hone 4674M08700 379-5547 3425XC 316-3034 59.6 87.5 Bore & Hone 4674M08750 379-5548 3445XC 316-3035 YZ400F WR400F 98-99 98-00 12.5:1 92.0 92.0 Deglaze / Hone 4649M09200 316-1946 3622XR 316-2616 S560 379-5472 CW18 316-1905 x 94.0 Bore / Replate 4649M09400 316-1948 3701XR 316-8022 60.1 YZ400F WR400F 98-99 98-00 13.5:1 92.0 92.0 Deglaze / Hone 4650M09200 316-1949 3622XR 316-2616 S560 379-5472 CW18 316-1905 x 94.0 Bore / Replate 4650M09400 316-1950 3701XR 316-8022 60.1 YZ426F WR426F 00-02 01-02 12.5:1 95.0 95.0 Deglaze / Hone PK1810 316-3816 4693M09500 316-1957 3741XS 316-3517 S615 316-3180 CW19 316-1911 x 96.5 Bore / Replate 4693M09650 316-1958 9650XS 316-3506 60.1 97.0 Bore / Replate 4693M09700 316-1959 3819XS 316-3518 YZ426F WR426F 00-02 01-02 13.5:1 95.0 95.0 Deglaze / Hone 4694M09500 316-1955 3741XS 316-3517 S615 316-3180 CW19 316-1911 x 97.0 Bore / Replate 4694M09650 316-3961 9650XS 316-3506 60.1 Bore / Replate 4694M09700 316-1956 3819XS 316-3518 YZ450F WR450F 03-05 03-06 12.5:1 95.0 95.0 ArmorGlide Deglaze / Hone PK1357 316-3097 4785M09500 316-0419 3741XS 316-3517 S600 316-3193 CW18 316-1905 X 97.0 Bore / Replate PK1358 316-3098 4785M09700 316-0420 3819XS 316-3518 63.4 YZ450F WR450F 03-05 03-06 13:1 95.0 95.0 ArmorGlide Deglaze / Hone PK1361 316-3387 4786M09500 316-0421 3741XS 316-3517 S600 316-3193 CW18 316-1905 X 97.0 Bore / Replate 4786M09700 316-0422 3819XS 316-3518 63.4 YZ450F WR450F 06-09 07-15 12.5:1 95.0 95.0 ArmorGlide Deglaze / Hone PK1359 316-3099 4785M09500 316-0419 3741XS 316-3517 S600 316-3193 CW18 316-1905 X 97.0 Bore / Replate PK1360 316-3386 4785M09700 316-0420 3819XS 316-3518 63.4 YZ450F WR450F 06-09 07-15 13:1 95.0 95.0 ArmorGlide Deglaze / Hone PK1363 316-3389 4786M09500 316-0421 3741XS 316-3517 S600 316-3193 CW18 316-1905 X 97.0 Bore / Replate 4786M09700 316-0422 3819XS 316-3518 63.4 YZ450F 10-13 12.5:1 97.0 97.0 ArmorGlide Deglaze / Hone PK1872 316-0173 40001M09700 379-5675 3819XS 316-3518 S759 379-5674 CW18 316-1905 X Boxed Forging 60.8 YZ450F 10-13 13:1 97.0 97.0 ArmorGlide Deglaze / Hone PK1873 316-0190 40002M09700 379-5537 3819XS 316-3518 S759 379-5674 CW18 316-1905 X Boxed Forging 60.8


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