Description

Sea-Doo GTS 90 Engine Rebuild Service (2017)

The Sea-Doo GTS 90 is built for simple, dependable fun on the water. However, when internal wear starts to show up, you may notice rough starts, weak throttle response, or uneven performance. A full rebuild brings the engine back the right way.

At REV6, we tear your engine down completely, inspect every major component, and rebuild it with corrected clearances and refreshed internals. As a result, your GTS 90 runs cleaner, responds smoother, and gets you back on the water with confidence.

Core Requirement

This engine requires freight shipment. Shipping cost both to and from REV6 are included in the list price. Once purchased we will contact you with shipping and label details.

Core required: A rebuildable Sea-Doo GTS 90 engine core must be supplied for this service. Once your order is placed, we’ll send a prepaid shipping label and coordinate pickup.

Before shipping, remove your exhaust, fuel-related components, electrical parts, and sensors. After that, we handle the rest—from teardown to final rebuild and return shipping.

For step-by-step instructions, visit our Help Center.

If you want to spread out the cost, check out our flexible payment options to keep your rebuild moving.

What’s Included in the Rebuild

• Standard 1-year warranty with optional 2-year no-fault upgrade
• Full engine core inspection
• Crankcase assembly inspected and refurbished
• Crankshaft assembly inspected and rebuilt
• New high-babbitt crankshaft bearings installed
• Cylinders bored and honed to the next oversize or re-sleeved as needed
• New pistons, rings, and wrist pins installed
• Cylinder head rebuilt and resurfaced
• Valve guides inspected and replaced as needed
• Valves and seats recut and vacuum tested for proper sealing
• Camshaft cleaned, inspected, and polished
• Mating surfaces decked and resurfaced for a tight seal
• Timing chain inspected and replaced when needed
• New gaskets and oil seals throughout
• All bearings cleaned, inspected, and replaced as needed
• Assembly completed by a master technician
• Double inspection before shipment

Note: Final build details depend on your engine’s condition.

Built for Easy, Reliable Riding

The GTS 90 is not about overcomplicating the ride. It needs to start clean, run smooth, and stay dependable. Because of that, we focus on sealing, internal balance, and proper clearances throughout the rebuild.

In turn, your rebuilt engine delivers steady power and predictable performance every time you head out.

Warranty & Support

Every rebuild includes a 1-year warranty. In addition, you can upgrade to a 2-year no-fault plan for extra protection.

Review coverage in our warranty policy, browse answers in our FAQ, or contact our team for support.

For more insight, visit the REV6 Blog or watch rebuilds on our YouTube channel.

Take Action

If your GTS 90 is running rough or losing response, now’s the time to rebuild it the right way.

Get back on the water with smooth, dependable power and confidence in your engine.

We proudly support veterans and active servicemembers with available discounts—thank you for your service.