Mariner Mercury 8M0097855 2.1Ltr 80 to 115hp 300hr

The Mariner Mercury 8M0097855 2.1Ltr 300-Hour Service Maintenance Kit is designed for maintaining outboard motors in the 80hp to 115hp range. This kit includes all necessary components to perform a comprehensive 300-hour service, ensuring optimal engine performance and longevity. Below, you will find a detailed list of the kit's contents and step-by-step instructions on how to use them.

Contents:

1. Oil Filter
2. Fuel Filter
3. Spark Plugs
4. Gearcase Lubricant
5. Engine Oil
6. Impeller Kit (including impeller, gaskets, and seals)
7. Thermostat
8. Anodes
9. Oil Drain Plug Gasket
10. Grease
11. Water Separating Fuel Filter
12. Air Filter (if applicable)
13. Drive Belt (if applicable)

Detailed Instructions:

1. Safety Precautions:

• Ensure the engine is off and cool.
• Disconnect the battery to prevent accidental start-ups.

2. Oil Change:

• Draining Old Oil:
  • Remove the engine cowling.
  • Place a drain pan beneath the oil drain plug.
  • Remove the drain plug and allow the oil to fully drain.
• Replacing the Oil Filter:
  • Remove the old oil filter.
  • Apply a thin layer of new oil to the gasket of the new oil filter.
  • Screw on the new oil filter by hand until snug, then tighten an additional three-quarters of a turn.
• Refilling with New Oil:
  • Replace the drain plug with a new gasket if provided.
  • Use a funnel to refill the engine with the specified type and amount of new oil.
  • Replace the oil cap and clean up any spills.

3. Fuel Filter Replacement:

• Fuel Filter:
  • Locate and remove the old fuel filter.
  • Install the new fuel filter, ensuring correct orientation as indicated by the arrows on the filter.
• Water Separating Fuel Filter:
  • Locate the water separating fuel filter.
  • Remove and replace it with the new one from the kit.

4. Spark Plugs:

• Removing Old Spark Plugs:
  • Use a spark plug socket and ratchet to remove each spark plug.
  • Inspect for wear and deposits.
• Installing New Spark Plugs:
  • Check the gap on the new spark plugs and adjust if necessary.
  • Install the new spark plugs by hand to avoid cross-threading, then tighten with a torque wrench to the specified setting.

5. Gearcase Maintenance:

• Draining Old Gearcase Lubricant:
  • Place a drain pan under the lower unit.
  • Remove the drain and vent plugs to allow the lubricant to drain.
• Refilling with New Gearcase Lubricant:
  • Use a gearcase lubricant pump to fill from the bottom until the lubricant overflows from the vent hole.
  • Replace and tighten the vent and drain plugs.

6. Impeller Replacement:

• Accessing the Water Pump:
  • Remove bolts securing the lower unit.
  • Carefully lower the unit to access the water pump.
• Replacing the Impeller:
  • Remove the water pump housing and old impeller.
  • Install the new impeller, gaskets, and seals.
  • Reassemble the water pump housing and reattach the lower unit.

7. Thermostat:

• Removing the Old Thermostat:
  • Locate and remove the thermostat housing.
  • Remove the old thermostat and gasket.
• Installing the New Thermostat:
  • Place the new thermostat and gasket into the housing.
  • Reassemble the housing and secure with bolts.

8. Anodes:

• Inspection and Replacement:
  • Inspect all anodes for corrosion.
  • Replace any anodes that are more than 50% corroded.
  • Install new anodes and ensure they are securely fastened.

9. Greasing:

• Lubricating Moving Parts:
  • Apply marine-grade grease to all moving parts and fittings as specified in the service manual.

10. Air Filter (if applicable): - Removing and Replacing the Air Filter: - Locate the air filter housing. - Remove the old air filter. - Install the new air filter and reassemble the housing.

11. Drive Belt (if applicable): - Inspecting and Replacing the Drive Belt: - Inspect the drive belt for wear and tension. - Replace the drive belt if it shows signs of cracking or excessive wear.

12. Final Checks: - Reassemble and Test: - Reassemble any parts that were removed. - Reconnect the battery. - Start the engine and check for any leaks or abnormalities. - Perform a water test to ensure proper operation.

By following these detailed instructions and utilising the components included in your Mariner Mercury 8M0097855 2.1Ltr 300-Hour Service Maintenance Kit, you can maintain your outboard motor in excellent condition, ensuring reliable performance and extending its service life.