This WSM powerhead rebuild kit is for Yamaha 200-250 HP 76° V6 EFI outboards using dish-top pistons. It is built around the 3.544-inch bore family and includes the pistons, gasket set, crank bearings, rod bearings, and rod bolts required for the rebuild.
Fitment
- Yamaha 200 HP 76° V6 EFI: 1994-2005
- Yamaha 225 HP 76° V6 EFI: 1994-2004
- Yamaha 250 HP 76° V6 EFI: 1995-2004
Technical Specifications
- WSM standard-size kit: 100-285-10
- 6-cylinder 76° V6 EFI powerhead
- Dish-top piston application
- 3.544-inch standard bore
- Head-gasket installation note: install with the wide side of the fire ring toward the block
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 option depending on selection
- Complete gasket kit: 2 head gaskets, 2 head-cover gaskets, 1 base gasket, 6 reed gaskets, 1 injector-to-manifold gasket, 1 intake-manifold-to-block gasket, 1 exhaust gasket, 2 lower crank O-rings, 1 upper crank O-ring, 3 fuel-pump gaskets, 3 water-passage gaskets, 1 upper crank oil seal, 2 lower crank oil seals, and 1 O2-sensor gasket
- 2 upper main bearings of two different types, 2 center main bearings, and 1 lower main bearing
- 6 upper and 6 lower connecting-rod bearings
- 12 connecting-rod bolts
Fitment Note
Outboard applications can vary by horsepower, year, bore size, rod-guidance style, and model or serial range. Compare the fitment and technical details above with your engine 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.
