How to Remove the Cover for 35 Horsepower Mercury Outboard

The process of removing the cover on a 35 horsepower Mercury outboard is relatively straightforward and requires a few simple steps. However, it’s important to approach the task with caution and ensure that all safety precautions are taken. The cover of a Mercury outboard serves as a protective barrier for the engine components, and removing it’s often necessary for maintenance, repairs, or access to certain parts. By following proper guidelines and using the right tools, users can successfully remove the cover without causing any damage to the outboard. This guide will provide a step-by-step explanation of the process, including key considerations to keep in mind throughout.

Should You Cover an Outboard Engine?

When it comes to protecting your investment, covering an outboard engine is a wise choice. A vented cover offers a range of benefits that can help extend the life and appearance of your outboard. One of the main advantages is that it prevents chafing and damage caused by towing or mooring ropes. By providing a protective layer between the ropes and the cowling, the cover ensures that the delicate surface of the outboard remains unharmed.

Unlike traditional covers that need to be removed before starting the engine, vented covers are designed to be left on even while the outboard is running. This means you can leave the cover in place at all times, ensuring continuous protection for the cowling no matter the situation.

Proper Storage Techniques for the Outboard Engine Cover When Not in Use

  • Keep the outboard engine cover in a dry and well-ventilated area.
  • Avoid exposing it to direct sunlight for prolonged periods.
  • Ensure the cover is clean and free from any debris before storage.
  • If possible, store the cover in a dust-free environment to prevent scratches.
  • Consider using a cover bag or wrapping it in a soft cloth for extra protection.
  • Store the cover in an upright position to maintain it’s shape and avoid any distortions.
  • Regularly inspect the cover for any signs of wear or damage.
  • If you plan to store the engine cover for an extended period, consider applying a protective spray or wax to keep it in good condition.

Cleaning a Mercury outboard cowling is a simple task that requires some basic supplies and a few minutes of your time. With a small bucket, water, mild detergent, Mercury Cowl Finishing Compound, and four clean, soft cloths, you can easily maintain the appearance of your motor throughout the boating season. By following these steps, you can ensure your Mercury outboard cowling stays looking pristine and fresh each time you take it out on the water.

How Do You Clean a Mercury Outboard Cowling?

Cleaning a Mercury outboard cowling is a straightforward process that can be completed in just a few minutes. To begin, gather a small bucket, water, mild detergent, Mercury Cowl Finishing Compound, and four clean, soft cloths. These simple tools will help you maintain the pristine appearance of your Mercury motor.

Start by mixing water and a small amount of mild detergent in the bucket. Use this mixture to dampen one of the clean cloths. Gently wipe down the exterior of the cowling, being careful to remove any dirt, grime, or salt residue that may have accumulated. This initial cleaning step will help prepare the cowling for further treatment.

Next, apply a thin layer of Mercury Cowl Finishing Compound to a second clean cloth. This specialized compound is designed to remove any stubborn stains or oxidation from the cowlings surface. Work the compound into the affected areas, using circular motions, until the stains begin to fade. Be sure to maintain a consistent pressure throughout this process to avoid damaging the cowlings finish.

Once the stains have been successfully treated, use a third clean cloth and plain water to rinse off any remaining compound residue. Thoroughly remove the compound from all sides of the cowling to prevent streaking or discoloration. Ensure that the cloth is free of any particles that could scratch the cowlings surface, as even small imperfections can detract from it’s appearance.

Tips for Preventing Stains and Oxidation on Mercury Outboard Cowlings: This Section Can Provide Advice on How to Keep the Cowling Clean and Well-Maintained to Avoid the Need for Extensive Cleaning. It Can Include Tips on Proper Storage, Regular Maintenance, and Protective Measures to Prevent Staining and Oxidation.

To prevent stains and oxidation on your Mercury Outboard cowlings, there are a few key tips to keep in mind. Proper storage is essential, as it helps protect the cowling from exposure to harsh elements. Always store the outboard in a covered area, such as a garage or shed, when not in use.

Regular maintenance is crucial for preventing stains and oxidation. Make sure to clean your cowling regularly using mild soap and water or specialized cleaning products. Avoid using abrasive cleaners that can damage the surface. Additionally, waxing the cowling periodically can provide a protective barrier against stains and oxidation.

When transporting your outboard, consider using a cover or a protective bag to shield the cowling from debris and potential damage. Furthermore, be cautious when fueling your outboard to avoid spills on the cowling, as certain fuels can cause stains.

By following these tips and implementing proper maintenance, you can keep your Mercury Outboard cowling clean and free from unsightly stains and oxidation.

Source: Mercury Dockline | Quick Tip: Outboard Motor Cowl Cleaning

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This protection not only prolongs the life of your outboard motor but also ensures it’s optimal performance when you need it. In this article, we will explore the various benefits of using an outboard motor cover and why it’s a worthwhile investment for boat owners.

What Are the Benefits of an Outboard Motor Cover?

Furthermore, a good quality outboard motor cover also helps to prolong the life of your motor by preventing corrosion and rust buildup. The cover acts as a barrier, protecting the motor from any potential damage that can be caused by moisture and other environmental factors. It also prevents any potential scratches or dings that can occur during transportation or storage.

It’s designed to be easily installed and removed, allowing you to quickly and effortlessly cover your motor whenever necessary. This is especially beneficial for boat owners who frequently transport their boats or store them in areas with changing weather conditions.

By covering the motor, you can keep it looking clean and well-maintained, which adds to the overall appearance of your boat. This is particularly important for boat owners who take pride in their vessel and want to maintain it’s visual appeal.

It’s an essential accessory for any boat owner looking to safeguard their motor and prolong it’s life.

How to Choose the Right Outboard Motor Cover for Your Boat

When selecting an outboard motor cover for your boat, it’s important to consider a few key aspects. Firstly, determine the appropriate size by measuring the dimensions of your motor and selecting a cover that matches these specifications. Next, opt for a cover made from durable materials like polyester or nylon, as these provide better protection against the elements and minimize potential damage. Additionally, consider a cover with UV protection to prevent sun damage. Lastly, ensure the cover is equipped with secure fastenings and is designed to resist water infiltration. By evaluating these factors, you can confidently choose the right outboard motor cover for your boat.


By carefully following the manufacturer's instructions and utilizing the right tools, one can successfully remove the cover and gain access to the inner components of the outboard. It’s important to remember to turn off the engine, disconnect the battery, and allow the engine to cool down before attempting to remove the cover. Additionally, proper handling and storage of the cover should be considered to ensure it’s longevity. By mastering this essential maintenance skill, boaters can confidently maintain and repair their 35 horsepower Mercury outboard, prolonging it’s lifespan and ensuring optimal performance on the water.

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