• Blowsion Big Bore Cylinder Sleeve - Yamaha 850cc
  • Blowsion Big Bore Cylinder Sleeve - Yamaha 850cc
  • Blowsion Big Bore Cylinder Sleeve - Yamaha 850cc
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Blowsion

Blowsion Cylinder Sleeve - Yamaha 850

Blowsion Cylinder Sleeve - Yamaha 850

01-03-452

In stock

$189.95
Shipping calculated at checkout.

Yamaha SuperJet 850 Big Bore Sleeves. Performance Pre-Ported. Price listed is per sleeve. To be used with stock stroke through 6 mil stroker motors. Blowsion custom designed sleeve features a wider exhaust port, wider boost port, deeper transfers and a narrowed skirt. Due to the unique design of our 850cc big bore sleeves it is imperative that they are installed in a 760 (64X) cylinder rather than in a 701 (61X) OEM Cylinder. The 760 cylinder (and a select few 701 Runabout Cylinders) incorporates the additional cylinder material required to receive the full potential of our monster sleeves. Please also note we have available spacer plates for stroker applications or to modify cylinder deck heights.

Requirements

  • 62T Raider (701cc) or 64X (760cc) OEM Yamaha Cylinder. (61X 701 NOT APPLICABLE)
  • Pro-X Piston Kits: Available sizes (89.00mm, 89.25mm, 89.50mm, 89.75mm, 90.00mm and Wiseco 90.50mm, 91.00mm). Piston kit includes (Piston, Rings and Cir-Clips).
  • Pro-X Wrist Pin Bearings.
  • Blowsion 850 Cylinder Head Domes. To accommodate the larger bore sleeves we offer a specially designed dome that fits into our Blowsion 2-Piece Girdled Cylinder Head.
  • Requires OEM Crankcase Machining.
  • Requires Cylinder Machining for Sleeve.

Part Number: 01-03-452

Liability Disclaimer – Closed Course Use Only

Blowsion products are intended for closed course competition use only. These products are not designed, tested, or approved for use on public waterways or pollution-controlled vehicles.

Installation and operation of Blowsion components may affect the safety, emissions compliance, and legal status of your watercraft. Use of these products on public waterways may be a violation of federal, state, or local laws.

By purchasing and installing Blowsion products, the user assumes all responsibility and risk associated with their use, including but not limited to personal injury, property damage, or legal penalties.

Always follow proper safety procedures and consult with a qualified technician for installation.

Product Installation Disclaimer:

Warning:

When using electric or battery-operated tools inside the hull, ensure the area is well-ventilated and free of fumes. Failure to follow this precaution may result in fire, explosion, serious injury, or death.

Disconnect the battery before performing any installation or maintenance to prevent accidental ignition or electrical shock.

Allow the engine to cool completely before beginning installation.

No Smoking!

This kit is not designed for use on vehicles equipped with pollution control systems. Installing this kit on such vehicles may violate state or local laws

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