Name: Piston Kit 85-87 YZ80 50.00, Wossner 8186D200 Yamaha MX
Brand: Wossner
SKU: 56-W520+200.WO

Piston Kit 85-87 YZ80 50.00, Wossner 8186D200 Yamaha MX

Wossner
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Description

This Wossner piston kit is designed for Yamaha YZ80 models from 1985 to 1987, featuring a 50.00 mm bore with an actual piston diameter of 49.95 mm. Manufactured in Germany, the forged piston delivers high strength and efficient heat transfer from the combustion chamber to the cylinder walls. The elliptical design ensures uniform bearing surface under heat expansion, minimizing localized stress and reducing the risk of piston failure.

Features

Forged piston construction for durability under high stress
Designed for optimal combustion heat transfer
Elliptical profile ensures even thrust load distribution
Manufactured in Germany

Specifications

Bore size: 50.00 mm
Actual piston diameter: 49.95 mm
Display (cm³): 82
Stroke: 45.60 mm
Clearance: 0.05 mm
Compression height: 26.80 mm
Wossner compression ratio: 2-stroke
OEM compression ratio: 2-stroke

Cross-Reference OEM Part Numbers

Wossner Piston Part Number: 8186D200
Lock Part Number: CW12
Pin Part Number: WP091
Ring Set Part Number: RSB5000
Alternate Part Number: 56-W520+200.WO

Vehicle Fitments

Yamaha YZ80 1985
Yamaha YZ80 1986
Yamaha YZ80 1987

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 80	1985-1987

Piston Kit 85-87 YZ80 50.00, Wossner 8186D200 Yamaha MX

Wossner
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This Wossner piston kit is designed for Yamaha YZ80 models from 1985 to 1987, featuring a 50.00 mm bore with... Read more

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SKU: 56-W520+200.WO

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Description

This Wossner piston kit is designed for Yamaha YZ80 models from 1985 to 1987, featuring a 50.00 mm bore with an actual piston diameter of 49.95 mm. Manufactured in Germany, the forged piston delivers high strength and efficient heat transfer from the combustion chamber to the cylinder walls. The elliptical design ensures uniform bearing surface under heat expansion, minimizing localized stress and reducing the risk of piston failure.

Features

Forged piston construction for durability under high stress
Designed for optimal combustion heat transfer
Elliptical profile ensures even thrust load distribution
Manufactured in Germany

Specifications

Bore size: 50.00 mm
Actual piston diameter: 49.95 mm
Display (cm³): 82
Stroke: 45.60 mm
Clearance: 0.05 mm
Compression height: 26.80 mm
Wossner compression ratio: 2-stroke
OEM compression ratio: 2-stroke

Cross-Reference OEM Part Numbers

Wossner Piston Part Number: 8186D200
Lock Part Number: CW12
Pin Part Number: WP091
Ring Set Part Number: RSB5000
Alternate Part Number: 56-W520+200.WO

Vehicle Fitments

Yamaha YZ80 1985
Yamaha YZ80 1986
Yamaha YZ80 1987

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 80	1985-1987

Shipping & Delivery

How long will my item take to arrive?

Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

Where do you ship to?

We currently only ship orders within the UK.

How can I track my order?

Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

Can I collect my order?

Unfortunately we do not offer order collections from our fulfilment centre.