Dirt Motorcycle Engine Parts

This VintCo piston kit is designed for 1983-1987 Yamaha YZ250 models and is intended for vintage 2-stroke engine rebuilds requiring a 69 mm piston in +1.0 mm oversize. The kit includes the piston, rings, pin and clips, providing the core components needed for piston replacement, while the wrist pin bearing is available separately.Features Complete piston kit with piston, rings, pin and clips Suitable for vintage 2-stroke Yamaha YZ250 engine rebuilds Wrist pin bearing sold separately Additional size options available MoS2 coating supports running-in Specifications VintCo Part Number: PSY27-1.0 Bore size: 69 mm Oversize: +1.0 mm Piston size: 68.94 mm Clearance: 0.06 mm Forged piston Made in Germany Vehicle Fitments 1983 Yamaha YZ250 1984 Yamaha YZ250 1985 Yamaha YZ250 1986 Yamaha YZ250 1987 Yamaha YZ250

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Standard-size piston kit for 1983-1987 Yamaha YZ250 models. This VintCo kit includes the piston, rings, pin and clips, and features a forged piston with an MoS2 coating to support initial running-in. The wrist pin bearing is sold separately, and the piston is manufactured in Germany.Features Includes piston, rings, pin and clips Suitable for standard-bore rebuilds Forged piston design Supports initial running-in Wrist pin bearing sold separately Specifications VintCo Part Number: PSY27-00 Bore size: 68 mm Piston size: Standard Piston diameter: 67.94 mm Recommended clearance: 0.06 mm Coating: MoS2 Country of manufacture: Germany Vehicle Fitments 1983 Yamaha YZ250 1984 Yamaha YZ250 1985 Yamaha YZ250 1986 Yamaha YZ250 1987 Yamaha YZ250

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This VintCo piston kit is designed for 1983-1987 Yamaha YZ250 models and provides a replacement piston assembly for vintage 2-stroke engines. Produced using modern materials and manufacturing techniques for OEM-equivalent fitment and performance, the kit includes the piston, rings, pin and clips. A wrist pin bearing is available separately, and additional size options are also available.Features Replacement piston kit for vintage 2-stroke engines Includes piston, rings, pin and clips Wrist pin bearing sold separately MoS2 coated for running-in Additional size options available Specifications VintCo Part Number: PSY27-0.5 Piston size: 68.5 mm Oversize: +0.5 mm Piston measurement: 68.44 mm Clearance: 0.06 mm Forged piston Made in Germany Vehicle Fitments 1983 Yamaha YZ250 1984 Yamaha YZ250 1985 Yamaha YZ250 1986 Yamaha YZ250 1987 Yamaha YZ250

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VintCo piston kit for 1988-1992 Yamaha YZ80 models, intended for vintage 2-stroke engine rebuilds. The kit includes the piston, rings, pin and clips, and is manufactured using modern materials and production methods for OEM-equivalent fitment and performance. The piston is forged, made in Germany, and MoS2 coated for running-in. A wrist pin bearing is available separately.Features Complete piston kit with piston, rings, pin and clips For vintage 2-stroke engine rebuilds Intended to provide OEM-equivalent fitment and performance Forged piston MoS2 coated for running-in Wrist pin bearing sold separately Additional size options available Specifications VintCo Part Number: PSY26-1.5 Piston size: 49.5 mm Oversize: +1.5 mm Piston measurement: 49.45 mm Clearance: 0.05 mm Country of manufacture: Germany Vehicle Fitments 1988 Yamaha YZ80 1989 Yamaha YZ80 1990 Yamaha YZ80 1991 Yamaha YZ80 1992 Yamaha YZ80

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This VintCo piston kit is designed for 1988-1992 Yamaha YZ80 models and provides a 49mm piston in +1.0mm oversize for vintage 2-stroke engine rebuilds. The kit includes the piston, rings, pin and clips, and is produced using modern materials and manufacturing techniques for OEM-equivalent fitment and performance. The piston is forged, made in Germany, and MoS2 coated for break-in. A wrist pin bearing is available separately, and additional size options are also available.Features Complete piston kit including piston, rings, pin and clips Suitable for vintage 2-stroke engine rebuilds Designed for OEM-equivalent fitment and performance MoS2 coating for break-in Wrist pin bearing sold separately Additional size options available Specifications VintCo Part Number: PSY26-1.0 Piston diameter: 49mm Oversize: +1.0mm Piston size: 48.95mm Clearance: 0.05mm Piston construction: Forged Country of manufacture: Germany Vehicle Fitments 1988 Yamaha YZ80 1989 Yamaha YZ80 1990 Yamaha YZ80 1991 Yamaha YZ80 1992 Yamaha YZ80

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This VintCo piston kit is a standard-size replacement for 1988–1992 Yamaha YZ80 models. It includes the piston, rings, pin and clips, and uses a forged piston manufactured in Germany with a MoS2 coating to support running-in. Wrist pin bearing is sold separately.Features Standard replacement piston kit Includes rings, pin and clips Wrist pin bearing sold separately MoS2 coated for running-in Specifications VintCo Part Number: PSY26-00 Piston size: 48.00 mm Piston measurement: 47.95 mm Clearance: 0.05 mm Forged piston Made in Germany Vehicle Fitments 1988 Yamaha YZ80 1989 Yamaha YZ80 1990 Yamaha YZ80 1991 Yamaha YZ80 1992 Yamaha YZ80

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This VintCo piston kit is intended for 1988-1992 Yamaha YZ80 models and is supplied as a 0.5 mm oversize replacement piston assembly. The kit includes the piston, rings, pin and clips, with the wrist pin bearing sold separately. It is a forged piston manufactured in Germany and is finished with a MoS2 coating to aid break-in.Features Supplied with rings, pin and clips Wrist pin bearing sold separately Forged piston construction Coated to aid break-in Specifications VintCo Part Number: PSY26-0.5 Nominal size: 48.5 mm Oversize: 0.5 mm over Listed piston size: 48.45 mm Clearance: 0.05 mm Coating: MoS2 Country of manufacture: Germany Vehicle Fitments 1988 Yamaha YZ80 1989 Yamaha YZ80 1990 Yamaha YZ80 1991 Yamaha YZ80 1992 Yamaha YZ80

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This VintCo piston kit is designed for 1985-1987 Yamaha YZ80 models and suits vintage 2-stroke engine rebuilds. The kit includes the piston, rings, pin and clips, with the wrist pin bearing available separately. It is manufactured in Germany using modern production methods for OEM-style fitment and performance.Features Complete piston kit with piston, rings, pin and clips Suitable for vintage 2-stroke engine rebuilds Wrist pin bearing sold separately Additional size options available MoS2 coating to assist running-in Specifications VintCo Part Number: PSY25-1.5 Piston diameter: 49.5 mm Oversize: +1.5 mm Clearance: 0.05 mm Forged piston Country of manufacture: Germany Vehicle Fitments 1985 Yamaha YZ80 1986 Yamaha YZ80 1987 Yamaha YZ80

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This VintCo piston kit is designed for 1985-1987 Yamaha YZ80 models and provides a replacement piston assembly for vintage 2-stroke engine rebuilds. Manufactured in Germany using modern materials and manufacturing techniques for OEM-comparable fit and performance, the kit includes the piston, rings, pin and clips. The piston is forged and MoS2 coated for break-in, while a wrist pin bearing is available separately.Features Complete piston kit with piston, rings, pin and clips Suitable for vintage 2-stroke engine rebuilds Forged piston construction MoS2 coated for break-in Wrist pin bearing sold separately Additional size options available Specifications VintCo Part Number: PSY25-1.0 Piston size: 49mm Oversize: +1.0mm Piston measurement: 48.95mm Clearance: 0.05mm Country of manufacture: Germany Vehicle Fitments 1985 Yamaha YZ80 1986 Yamaha YZ80 1987 Yamaha YZ80

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VintCo piston kit PSY25-00 is a standard-size replacement piston kit for 1985-1987 Yamaha YZ80 models. This kit is supplied with rings, pin and clips, while the wrist pin bearing is sold separately. It is a forged piston manufactured in Germany and finished with a MoS2 coating for running-in.Features Supplied with rings, pin and clips Wrist pin bearing sold separately Standard-size replacement piston kit Specifications VintCo Part Number: PSY25-00 Bore size: 48.00 mm Piston size: 47.95 mm Clearance: 0.05 mm Forged piston MoS2 coated Made in Germany Vehicle Fitments 1985 Yamaha YZ80 1986 Yamaha YZ80 1987 Yamaha YZ80

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This VintCo piston kit is designed for 1985-1987 Yamaha YZ80 models and provides a replacement piston assembly for vintage 2-stroke engine maintenance. Manufactured using modern materials and production methods for OEM-equivalent fit and performance, the kit includes the piston, rings, pin and clips. It is supplied in a 48.5 mm size with a +0.5 mm oversize; a wrist pin bearing is available separately, and additional size options are also available.Features Complete piston kit for vintage 2-stroke engine service Includes piston, rings, pin and clips Suitable for OEM-equivalent fit and performance Wrist pin bearing sold separately Additional size options available MoS2 coating supports running-in Specifications VintCo Part Number: PSY25-0.5 Piston size: 48.5 mm Oversize: +0.5 mm Piston measurement: 48.45 mm Clearance: 0.05 mm Forged piston Made in Germany Vehicle Fitments 1985 Yamaha YZ80 1986 Yamaha YZ80 1987 Yamaha YZ80

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VintCo piston kit PSY24-1.5 is a replacement forged piston assembly for the 1984 Yamaha YZ80 vintage 2-stroke. It is manufactured in Germany using modern materials and manufacturing techniques for OEM-equivalent fitment and performance, and is supplied with the piston, rings, pin and clips. The piston is MoS2 coated for running-in, while the wrist pin bearing is available separately. Additional size options are also available.Features Complete piston kit for vintage 2-stroke engine service Includes piston, rings, pin and clips Forged piston construction MoS2 coated for running-in Wrist pin bearing sold separately Additional size options available Specifications VintCo Part Number: PSY24-1.5 Piston size: 49.5 mm Oversize: +1.5 mm Piston measurement: 49.45 mm Clearance: 0.05 mm Country of manufacture: Germany Vehicle Fitments1984 Yamaha YZ80

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VintCo PSY24-1.0 is a piston kit for the 1984 Yamaha YZ80 vintage 2-stroke, supplied in 49mm with a +1.0mm oversize. The kit includes the piston, rings, pin and clips, and is produced using modern materials and manufacturing methods to provide OEM-level fit and performance for continued service of older machines. A wrist pin bearing is available separately, and additional size options are also available.Features Complete piston kit with piston, rings, pin and clips Suitable for vintage 2-stroke engine rebuilds Forged piston design MoS2 coated to assist running-in Wrist pin bearing sold separately Additional size options available Specifications VintCo Part Number: PSY24-1.0 Piston size: 49mm Oversize: +1.0mm Piston measurement: 48.95mm Clearance: 0.05mm Country of manufacture: Germany Vehicle Fitments1984 Yamaha YZ80

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VintCo PSY24-00 is a standard piston kit for the 1984 Yamaha YZ80, supplied with rings, pin and clips. It uses a forged piston, is manufactured in Germany, and has a MoS2 coating for break-in. The wrist pin bearing is sold separately.Features Piston kit includes rings, pin and clips Forged piston MoS2 coated for break-in Wrist pin bearing sold separately Specifications VintCo Part Number: PSY24-00 Piston size: 48.00 mm Size designation: Standard Piston measurement: 47.95 mm Clearance: 0.05 mm Country of manufacture: Germany Vehicle Fitments1984 Yamaha YZ80

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This piston kit is designed for the 1984 Yamaha YZ80 and suits vintage 2-stroke engine rebuilds requiring a 0.5 mm oversize piston. It is manufactured using modern materials and production methods for OEM-equivalent fitment and performance, and includes the piston, rings, pin and clips. A wrist pin bearing is available separately.Features Complete piston kit for engine rebuild or replacement Includes piston, rings, pin and clips Suitable for vintage 2-stroke applications MoS2 coated to assist during break-in Wrist pin bearing sold separately Specifications VintCo Part Number: PSY24-0.5 Piston size: 48.5 mm Oversize: +0.5 mm Piston measurement: 48.45 mm Clearance: 0.05 mm Forged piston Made in Germany Vehicle Fitments1984 Yamaha YZ80

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This VintCo piston kit is designed for 1982-1983 Yamaha YZ80 models and suits vintage 2-stroke engine rebuilds. It includes the piston, rings, pin and clips, and is manufactured using modern materials and production methods for OEM-equivalent fitment and performance. A wrist pin bearing is available separately, and additional size options are also available.Features Complete piston kit including piston, rings, pin and clips Suitable for vintage 2-stroke engine rebuilds Wrist pin bearing sold separately MOS2 coated for break-in Specifications VintCo Part Number: PSY23-1.5 Forged piston Made in Germany Nominal size: 48.5 mm Oversize: +1.5 mm Piston size: 48.45 mm Clearance: 0.05 mm Vehicle Fitments 1982 Yamaha YZ80 1983 Yamaha YZ80

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VintCo piston kit PSY23-1.0 is a +1.0 mm oversize replacement piston assembly for 1982-1983 Yamaha YZ80 models. Intended for vintage 2-stroke engine service, it includes the piston, rings, pin and clips, and is produced with modern manufacturing methods to provide OEM-style fitment and performance. A wrist pin bearing is available separately.Features Complete piston kit with piston, rings, pin and clips Suitable for vintage 2-stroke Yamaha YZ80 engine service Produced with modern manufacturing methods for OEM-style fitment and performance Wrist pin bearing sold separately Specifications VintCo Part Number: PSY23-1.0 Piston size: 48 mm Oversize: +1.0 mm Piston measurement: 47.95 mm Clearance: 0.05 mm Construction: Forged Surface treatment: MoS2 coated Country of manufacture: Germany Vehicle Fitments 1982 Yamaha YZ80 1983 Yamaha YZ80

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VintCo piston kit for 1982-1983 Yamaha YZ80 models, supplied as a standard-size replacement assembly with ring(s), pin and clips. This forged piston is made in Germany and features an MoS2 coating for running-in; the wrist pin bearing is sold separately.Features Standard-size piston kit Includes ring(s), pin and clips Wrist pin bearing sold separately Forged piston Made in Germany MoS2 coated for running-in Specifications VintCo Part Number: PSY23-00 Piston size: 47 mm Piston measurement: 46.95 mm Clearance: 0.05 mm Vehicle Fitments 1982 Yamaha YZ80 1983 Yamaha YZ80

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This VintCo piston kit is for 1982-1983 Yamaha YZ80 models and supplies the main components needed for a piston replacement in a vintage 2-stroke engine. The kit includes the piston, rings, pin and clips, and is produced using modern materials and manufacturing techniques to provide OEM-equivalent fitment and performance. This version is 47.5 mm with a +0.5 mm oversize, and features a forged piston made in Germany with an MoS2 coating for running-in. A wrist pin bearing is available separately.Features Complete piston kit with piston, rings, pin and clips Suitable for vintage 2-stroke piston replacement Manufactured for OEM-equivalent fitment and performance Wrist pin bearing sold separately Specifications VintCo Part Number: PSY23-0.5 Bore size: 47.5 mm Oversize: +0.5 mm Piston measurement: 47.45 mm Clearance: 0.05 mm Piston type: Forged Coating: MoS2 Country of manufacture: Germany Vehicle Fitments 1982 Yamaha YZ80 1983 Yamaha YZ80

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This VintCo piston kit is designed for 1988-2006 Yamaha YFS200 models and is intended for vintage 2-stroke engine rebuilds. The kit includes the piston, rings, pin and clips, and is manufactured using modern materials and production methods to provide OEM-equivalent or better fit and performance. It is a 68 mm piston kit in a +2.0 mm oversize, with a forged piston construction and MoS2 coating to assist during running-in. A wrist pin bearing is available separately, and additional size options are also available.Features Complete piston kit with piston, rings, pin and clips Suitable for vintage 2-stroke engine rebuilds MoS2-coated to assist during running-in Wrist pin bearing sold separately Additional size options available Made in Germany Specifications VintCo Part Number: PSY22-2.0 Product Type: Piston kit Piston diameter: 68 mm Oversize: +2.0 mm Piston measurement: 67.94 mm Clearance: 0.06 mm Piston construction: Forged Vehicle Fitments 1988 Yamaha YFS200 1989 Yamaha YFS200 1990 Yamaha YFS200 1991 Yamaha YFS200 1992 Yamaha YFS200 1993 Yamaha YFS200 1994 Yamaha YFS200 1995 Yamaha YFS200 1996 Yamaha YFS200 1997 Yamaha YFS200 1998 Yamaha YFS200 1999 Yamaha YFS200 2000 Yamaha YFS200 2001 Yamaha YFS200 2002 Yamaha YFS200 2003 Yamaha YFS200 2004 Yamaha YFS200 2005 Yamaha YFS200 2006 Yamaha YFS200

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VintCo PSY22-1.5 is a piston kit for 1988-2006 Yamaha YFS200 models. This +1.5 mm oversize kit is intended for vintage 2-stroke engine rebuilds and includes the piston, rings, pin and clips. It is produced using modern manufacturing methods for OEM-equivalent fit and performance, and the wrist pin bearing is available separately.Features Suitable for piston replacement during vintage 2-stroke engine rebuilds Complete kit includes piston, rings, pin and clips MoS2 coating assists initial running-in Wrist pin bearing sold separately Specifications VintCo Part Number: PSY22-1.5 Piston size: 67.5 mm Oversize: +1.5 mm Piston measurement: 67.44 mm Clearance: 0.06 mm Forged piston Manufactured in Germany MoS2-coated Vehicle Fitments 1988 Yamaha YFS200 1989 Yamaha YFS200 1990 Yamaha YFS200 1991 Yamaha YFS200 1992 Yamaha YFS200 1993 Yamaha YFS200 1994 Yamaha YFS200 1995 Yamaha YFS200 1996 Yamaha YFS200 1997 Yamaha YFS200 1998 Yamaha YFS200 1999 Yamaha YFS200 2000 Yamaha YFS200 2001 Yamaha YFS200 2002 Yamaha YFS200 2003 Yamaha YFS200 2004 Yamaha YFS200 2005 Yamaha YFS200 2006 Yamaha YFS200

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VintCo piston kit PSY22-1.0 is a replacement piston assembly for 1988-2006 Yamaha YFS200 models. Intended for vintage 2-stroke engine rebuilds, it is manufactured using modern materials and production methods to provide OEM-style fitment and performance. The kit includes the piston, rings, pin and clips for piston replacement work, while the wrist pin bearing is sold separately. This version is the 67 mm, +1.0 mm oversize option, with additional size options also available.Features Replacement piston kit for 1988-2006 Yamaha YFS200 models Suitable for vintage 2-stroke engine rebuilds Designed for OEM-style fitment and performance Includes piston, rings, pin and clips Wrist pin bearing sold separately Additional size options available Specifications VintCo Part Number: PSY22-1.0 Piston size: 67 mm Oversize: +1.0 mm Piston diameter: 66.94 mm Clearance: 0.06 mm Construction: Forged piston Coating: MoS2 coated Country of manufacture: Germany Vehicle Fitments 1988 Yamaha YFS200 1989 Yamaha YFS200 1990 Yamaha YFS200 1991 Yamaha YFS200 1992 Yamaha YFS200 1993 Yamaha YFS200 1994 Yamaha YFS200 1995 Yamaha YFS200 1996 Yamaha YFS200 1997 Yamaha YFS200 1998 Yamaha YFS200 1999 Yamaha YFS200 2000 Yamaha YFS200 2001 Yamaha YFS200 2002 Yamaha YFS200 2003 Yamaha YFS200 2004 Yamaha YFS200 2005 Yamaha YFS200 2006 Yamaha YFS200

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This VintCo piston kit is a standard-size replacement for the 1988-2006 Yamaha YFS200 Blaster. The kit includes the piston, rings, pin and clips, and is manufactured in Germany with a forged piston and MoS2 coating for break-in. Wrist pin bearing is sold separately.Features Standard-size replacement piston kit Includes rings, pin and clips Wrist pin bearing sold separately Forged piston Made in Germany MoS2 coated for break-in Specifications VintCo Part Number: PSY22-00 Piston size: 66 mm standard Piston diameter: 65.94 mm Clearance: 0.06 mm Vehicle Fitments 1988 Yamaha YFS200 1989 Yamaha YFS200 1990 Yamaha YFS200 1991 Yamaha YFS200 1992 Yamaha YFS200 1993 Yamaha YFS200 1994 Yamaha YFS200 1995 Yamaha YFS200 1996 Yamaha YFS200 1997 Yamaha YFS200 1998 Yamaha YFS200 1999 Yamaha YFS200 2000 Yamaha YFS200 2001 Yamaha YFS200 2002 Yamaha YFS200 2003 Yamaha YFS200 2004 Yamaha YFS200 2005 Yamaha YFS200 2006 Yamaha YFS200

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This VintCo piston kit is designed for 1988-2006 Yamaha YFS200 models and provides a 66.5 mm, +0.5 mm oversize replacement for vintage 2-stroke engine rebuilds. The kit includes the piston, rings, pin and clips, and is produced using modern manufacturing methods for OEM-equivalent fit and performance. A wrist pin bearing is available separately, and additional size options are also available.Features Complete piston kit with piston, rings, pin and clips Designed for vintage 2-stroke engine rebuilds OEM-equivalent fit and performance Wrist pin bearing sold separately MoS2 coating to assist running-in Specifications VintCo Part Number: PSY22-0.5 Bore Size: 66.5 mm Oversize: +0.5 mm Piston Size: 66.44 mm Clearance: 0.06 mm Piston Type: Forged Country of Manufacture: Germany Vehicle Fitments 1988 Yamaha YFS200 1989 Yamaha YFS200 1990 Yamaha YFS200 1991 Yamaha YFS200 1992 Yamaha YFS200 1993 Yamaha YFS200 1994 Yamaha YFS200 1995 Yamaha YFS200 1996 Yamaha YFS200 1997 Yamaha YFS200 1998 Yamaha YFS200 1999 Yamaha YFS200 2000 Yamaha YFS200 2001 Yamaha YFS200 2002 Yamaha YFS200 2003 Yamaha YFS200 2004 Yamaha YFS200 2005 Yamaha YFS200 2006 Yamaha YFS200

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