
Preparing your boat for the off-season is one of the most important steps in protecting your investment, and Riverfront Marine Sports offers professional outboard winterization services to ensure your engine is ready for storage. Our certified technicians follow a thorough process designed to prevent corrosion, fuel degradation, and internal damage caused by freezing temperatures. Each service includes stabilizing and fogging the fuel system, flushing the cooling system, draining water, and lubricating critical components to keep your outboard engine in peak condition during the winter months.
We service all major brands, including Mercury®, Yamaha®, Evinrude®, and Honda®, using manufacturer-approved products and methods for maximum reliability. During the winterization process, our technicians also perform a detailed inspection of your outboard to identify any worn parts or maintenance needs that should be addressed before next season.
This proactive approach helps prevent costly repairs and ensures your motor runs smoothly and efficiently when it’s time to launch again. For convenience, we can combine your outboard winterization with haul-out, shrink wrapping, and storage services for complete seasonal care — all handled at one location. Trusted by local water law enforcement and North Shore boaters, Riverfront Marine Sports provides dependable, high-quality winterization backed by decades of experience. When you choose our team, you can rest easy knowing your outboard engine is properly protected and ready for another great season on the water.

| 2 Stroke Outboards A-G* | 4 Stroke Outboards A-I no H* | Jet Drives* | |||
|---|---|---|---|---|---|
2-5 hp | $131.25 | Up to 8 hp | $198.00 | V-4 | N/A |
6-10 hp | $150.75 | 9.9-20 hp | $256.75 | V-6 | N/A |
15-35 hp | $170.25 | 25-30 hp | $270.75 | Please Note: For VRO Tank Service Add $50 | |
40-70 hp | $190.75 | 40-60 hp | $300.75 | ||
75-140 hp | $210.50 | 75-115 hp | $330.75 | ||
V-6 Carb | $255.75 | 150-200 hp | $392.50 | ||
V6 EFI | $281.75
| Inline 6 cyl. | $412.50 | ||
| V6-V8 | $427.50 | |||
| KEY | |
|---|---|
A | Add Fuel Stabilizer to Gas |
B | Lower Unit Lube Drained & Replaced |
C | All Critical Points of Lubrication Greased |
D | Remove Propeller & Grease Shaft (if possible) |
E | Run Engine, Listen for Any Abnormal Noises & Make Note of Any Worn Parts |
F | Fog Engine to Protect Internal Parts |
G | Spray Engine with Anti-Corrosion Spray |
H | Drain Water from Engine & Re-Fill with Anti-Freeze Solution |
I | Drain Engine Oil, Replace Oil Filter & Re-Fill Engine with Oil |
J | Re-Move Outdrive, Grease U-Joints, Gimbal Bearings, Inspect & Re-Install Outdrive |
Any additional work such as Freshwater systems, Generators, Toilet systems, Holding Tanks, Wash down systems and Bait-wells etc., will be done at the current shop rate plus materials.