This WSM powerhead rebuild kit is for Yamaha 150-225 HP 90° carbureted V6 outboards using the early 6E5 connecting-rod family and vertical reeds. The vertical-reed configuration is important when identifying the correct kit because a separate horizontal-reed kit is used for otherwise similar engines.
Fitment
- Yamaha 150 HP V6: 1985-1992
- Yamaha 175 HP V6: 1984-1992
- Yamaha 200 HP V6: 1984-1992
- Yamaha 225 HP 90° V6: 1990-1991
Technical Specifications
- WSM standard-size kit: 100-270-20
- 90° carbureted V6 powerhead
- Vertical-reed configuration
- 3.544-inch standard bore
- 6E5 connecting-rod application; existing fitment references Yamaha 6E5-11650-01-11
Piston Size Options
- Standard
- .010 oversize
- .020 oversize
- .030 oversize
- .040 oversize
Measure the finished cylinder bore before selecting piston size.
Complete Kit Includes
- 6 WSM piston kits with rings, wrist pins, and clips; Standard or Platinum piston option depending on the selected product option
- Complete gasket kit: 2 head gaskets, 2 head-cover gaskets, 1 base gasket, 6 reed gaskets, 3 carburetor gaskets, 1 air-box gasket through 1989, 1 intake-manifold gasket, 1 carburetor-to-air-box gasket, 2 exhaust gaskets, 2 upper-bearing O-rings, 1 lower-bearing O-ring, 2 fuel-pump gaskets, 2 thermostat gaskets, 1 cover gasket, 1 bypass gasket, 1 upper crank oil seal, and 2 lower crank oil seals
- 1 upper main bearing, 2 center main bearings, and 1 lower main bearing
- 6 upper connecting-rod bearings and 6 lower connecting-rod bearings
- 12 connecting-rod bolts
Fitment Note
Yamaha applications can vary within the same horsepower and year range. Verify the horsepower, year, cylinder configuration, bore size, and any reed or connecting-rod details listed above before ordering.
Questions About This Product?
Have questions about this product? Email us at customerservice@marinepartswarehouse.com and include your motor information with your question.
