Yamaha 100-Hour Maintenance Kit with Cooling – 70HP 2-Stroke (2000–2009 Models)

Staying on top of your two stroke outboard maintenance is key to keeping your engine running smooth and strong—trip after trip. This Yamaha 100-Hour Service Maintenance Kit is built specifically for 70HP Yamaha 2-stroke outboards from model years 2000 to 2009, giving you all the critical parts needed to complete a full service at the 100-hour mark.

From impeller replacement to spark plugs and fuel filters, this all-in-one kit ensures you’ve got the right components for both routine upkeep and 2 stroke outboard engine maintenance. It's a convenient, factory-recommended solution for DIY boaters and marine technicians alike.

What’s Included:

• Yamaha OEM Water Pump Repair Kit
• Fuel Filter & Fuel Filter Bowl O-Ring
• NGK Spark Plugs (x3)
• Lower Unit Drain Gaskets (x2)
• Thermostat Gasket

Compatibility:

• Yamaha 70HP 2-stroke outboards
• Model years 2000 through 2009
• Always confirm your engine's model number before ordering to ensure proper fit

Ideal For:

• Boaters who prefer hands-on engine care
• Seasonal 100-hour servicing
• Anyone following Yamaha’s official 2 stroke outboard engine maintenance schedule
• Owners focused on performance, fuel efficiency, and preventing premature wear

Why This Kit Matters

Skipping scheduled service might not cause immediate issues—but over time, buildup, worn parts, and compromised cooling can lead to reduced power, poor fuel economy, or worse. Yamaha’s 100-hour interval is the sweet spot to address small wear-and-tear items before they snowball into costly repairs.

This kit gives you everything you need to complete the service in one go, without hunting down part numbers or risking off-brand components. It’s fast, clean, and made to Yamaha’s factory spec—just the way it should be.

Frequently Asked Questions

→ How often should I perform 2 stroke outboard engine maintenance like this?
Yamaha recommends 100-hour or annual service intervals, whichever comes first. Regular maintenance ensures long-term reliability and peak performance.

→ Is this kit all I need for a full 100-hour service?
This kit covers the core maintenance items—cooling, fuel, ignition, and lower unit gaskets. You may also want to top off with Yamalube gear oil and fuel additives depending on your usage.

→ Will this fit all Yamaha 70HP 2-stroke engines?
This kit is built for Yamaha 70HP 2-stroke models from 2000 to 2009. Check your engine’s exact model number or consult your service manual to confirm.