Description

Restore Your Yamaha FX HO 1800 the Right Way

When your 2013–2015 Yamaha FX HO 1800 WaveRunner needs a serious refresh, this +.50mm Engine Rebuild Kit gives you the core components to bring compression, timing, and bottom-end reliability back in line. Instead of sourcing parts individually, this kit keeps everything matched and ready for a clean rebuild.

First, we address the cam chain system to eliminate stretch and guide wear. Next, fresh bearings and gaskets protect the rotating assembly. At the same time, the +.50mm oversize piston kit allows proper cylinder restoration during machining. As a result, your engine runs tighter, smoother, and more dependable.

This Kit Includes

• Cam Chain – 94591-66152-00
• Cam Chain Damper Guide – 6BH-12251-00-00
• Cam Chain Tension Guide – 6BH-12252-00-00
• Cam Chain Upper Guide – 6BH-12241-00-00
• Complete Gasket Kit – 6CR-W0001-01-00, 6CS-W0001-01-00, 6HM-W0001-00-00, 6HM-W0001-01-00
• Oversize +.50mm Piston Kit – 6BH-11631-00-B0
• Connecting Rod Bearings (Black) – 6S5-11656-50-00
• Crankshaft Bearings (Green) – 6S5-11416-40-00

Built for Serious Rebuilds

Because WaveRunner engines operate under constant load, precision matters. Therefore, upgrading worn timing components and replacing critical bearings helps prevent premature failure. In addition, fresh sealing surfaces reduce oil loss and improve long-term durability.

This kit is ideal for riders performing a full teardown and machining the cylinder to +.50mm oversize. If you are already this deep into the build, it makes sense to replace wear items now instead of risking another teardown later.

Fitment

Fits Yamaha FX HO 1800 WaveRunner models 2013–2015.

Need a More Complete Build?

If you want additional rotating assembly components and valve train parts, step up to the Master Engine Rebuild Kit for a more complete solution.

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Yamaha FX HO 1800 WaveRunner Master Engine Rebuild Kit +.50mm (2013–2015)