Engine Components

Each dome includes a dome locking system that prevents it from spinning when servicing spark plugs. One dome per package.

Tired of expensive and excessive motor mount failure in your SJ? Kenney Keepers retain the engine in place, while still allowing normal-use movement of factory or aftermarket engine mounts. Keeps drive couplers from separating and shearing. Updated design now available in all color options.

ADR Yamaha +10mm (78mm) Stroker Crankshaft with 133mm ADR Rods. ADR performance crankshafts are made from a super strong SCM415 crankshaft steel and go through a strict heat treatment process to control strength and reduce stress. ADR Crankshafts are available for the Yamaha Superjet in +10mm and +16mm stroker options.

Part Number: 01-03-700

We have worked diligently to manufacture a hi-torque alternative to the super high quality, but exhorbitantly priced OEM Kawasaki and Yamaha starters. These beauties feature polished commutators with hi tensile bearings and bushings, sintered copper and carbon/graphite brushes, and stainless hardware.

Part Number: 01-04-155

WSM Aftermarket Motor Mount for all Yamaha Superjet Models.

Part Number: 011-115

All ADA Racing billet heads are made from 6061-T6 aluminum and CNC machined in-house for consistency and performance. The head shell is then anodized for durability protection against salt-water corrosion. This is the head shell only and includes o-rings that fit into the grooves in the head shell and brass fittings.

ADA Racing Billet Head Shell for the Yamaha 701/760. All ADA Racing billet heads are made from 6061-T6 aluminum and CNC machined in-house for consistency and performance. The head shell is then anodized for durability and protection against salt-water corrosion. This is the head shell only and includes orings that fit into the grooves in the head shell and brass fittings. Available in Black or Silver.

ADA Racing Yamaha 701 Cylinder Head Exhaust Bracket for Non-girdled ADA cylinder heads. This bracket only works with the 3 bolt 701 Superjet style exhaust. It does NOT work with the 4 bolt 760 exhaust. Includes mounting bolts and spacers.

Part Number: YEXBRKT-2L

ADA Racing Yamaha 701 Cylinder Head Exhaust Bracket for Girdled ADA Cylinder Heads. This bracket only works with the 3 bolt 701 Superjet style exhaust. Includes mounting bolts and spacers.

Part Number: YEXBRKT-2M

ADA Racing Cylinder Head Girdle Kit for Yamaha 701/760 and Yamaha 1100/1200 Girdled Cylinder heads. Includes 6 stainless studs, 6 stainless washers, and 6 chrome acorn nuts. The only true girdle system. It does not bolt the cylinder to the cases, but sandwiches the cylinder between the head and the cases. Therefore, there is no pressure on the base of the cylinder. The threads are rolled for strength and not cut. Thread rolling compresses the material adding strength to the threads. Cutting threads leaves the root of the thread sharp, weakening the thread and making them easier to break.

Part Number: YA701G6

ADA Racing billet dome for the Yamaha 760 and 1200 engines, includes compression(OR043) and dome top(OR020) orings. Squish relief is .015 inch @ 86mm with a 10.5 degree angle.

Brand new modified OEM Yamaha 62T Crankcases now available from Blowsion for DASA Big Bore Stock Stroke Engine Setups. Includes Case Bore, Epoxy Fill, Trenching and Reinforcement plate for Stock Stroke Crankshafts.

Part Number: 01-03-763
OEM Yamaha Crankcase Part Number: 62T-15100-00-00

Replacement Pro-X Piston Circlip for Yamaha 20mm Wrist Pin. Compatible with Pro-X or OEM pistons. Pro-X Piston clips are not just a circled wire. They avoid the pin to move in the piston bosses. Do not underestimate the forces on the pin during operation. Exceeds OEM specifications. Sold as a pair (Set of 2).

Part Number: 01-03-604

ADA Racing billet dome for the Yamaha 701 and 1100 engines, includes compression(OR043) and dome top(OR020) orings. Squish relief is .015 inch @ 83mm with a 10.5 degree angle.