Client Projects Spotlight: Yamaha Service & Lithium Trolling Motor Upgrade

At Island Marine Repair LLC, we take pride in providing expert, mobile marine service right where our clients need us most — whether that’s at a dock, on a lift, or at their driveway. Recently, we completed several hands-on projects that showcase the range and quality of our service.

Full Yamaha F150 Service Performed On the Water

A client in Southwest Florida requested a complete outboard service for their Yamaha F150 while the boat was still on the lift. With full mobile capability and years of hands-on experience, we handled the job dockside with no compromise in quality. Here’s what the full service included:

  • Water Pump Replacement
    We disassembled the lower unit to replace the impeller and housing components, ensuring solid water flow for optimal cooling.
  • New Spark Plugs
    The old spark plugs showed visible signs of corrosion (see photos). We replaced them with NGK plugs for smooth ignition and better efficiency.
  • Thermostat Replacement
    The original thermostat was heavily corroded and partially stuck open. Installing a new one helps maintain proper engine temperature and prevents overheating.
  • Oil Change + Gear Oil
    Using Yamaha marine-grade lubricants, we changed the engine oil and gear oil. This ensures clean lubrication through every RPM.
  • Fuel Filter Replacement
    We replaced both the onboard and external fuel filters to support better fuel flow and filtration, especially critical in Florida’s humid climate.

This was a true example of concierge marine service — performed dockside, using genuine parts, by a qualified marine technician who treats every boat like his own.

36V Lithium Battery System Installed for Trolling Motor

In another install, we completed a full 36V lithium battery setup for a client’s trolling motor system. These modern battery upgrades are becoming essential for anglers and offshore fishermen alike — and this install included:

  • High-capacity ABYSS Lithium Battery (36V / 72AH)
    Designed for deep-cycle power and Bluetooth monitoring. This battery provides long-lasting reliability without the weight of lead acid.
  • New battery wiring setup
    We routed new high-gauge marine-grade cables with corrosion-resistant terminals, protecting performance and ensuring longevity.
  • Compartment optimization
    We cleaned up the battery compartment layout for airflow and quick disconnect in case of maintenance.

With better thrust and extended run times, this client is now fully equipped for long days chasing tarpon, snook, or redfish across Southwest Florida’s waterways.

100-Hour Yamaha F150 Service at Client’s Residence in Fort Myers

Back in Fort Myers, we were called for a 100-hour scheduled maintenance on another Yamaha F150 — completed right in the client’s driveway. No towing, no marina hassle — just professional-grade care brought straight to the owner’s home. This service included:

  • Engine oil and filter change
  • Gear case oil replacement
  • Fuel/water separator filter swap
  • Spark plugs inspection and change
  • Visual system inspection & corrosion check

Routine maintenance like this is essential to extend engine life, reduce fuel costs, and avoid major repairs down the line. Whether you boat on the Caloosahatchee or fish off the coast, proper care keeps your engine dependable year-round.

Real Work. Real Boats. Real Results.

At Island Marine Repair LLC, we don’t just talk marine — we live it. Every photo you see in this post is from real jobs, done by a certified marine tech with years of experience on Yamaha, Suzuki, Mercury, Garmin, and more. Whether it’s electrical rewiring, oil changes, gear case rebuilds, or lithium upgrades, we bring professional, on-site service to:

  • Fort Myers
  • Cape Coral
  • Sanibel & Captiva
  • Naples
  • Punta Gorda
  • All across Lee County, FL

Need Expert Dockside Service? Call Island Marine Repair LLC

Fort Myers | (239) 839-6908

Licensed, insured, and proudly owner-operated. From scheduled maintenance to full diagnostic repairs, we’ve got your boat covered.

Frequently Asked Questions (FAQs)

1. What’s included in a Yamaha F150 outboard service?
A full Yamaha F150 outboard service typically includes oil and oil filter change, fuel filter replacement, gearcase lube check, spark plug inspection or replacement, thermostat inspection, water pump check, and engine diagnostics. At Island Marine Repair LLC, we also flush the engine, inspect for corrosion, and document any future maintenance needs during our mobile dockside service.

2. How often should I service my Yamaha F150 four-stroke outboard?
Yamaha recommends servicing your F150 outboard every 100 hours or once per season—whichever comes first. This includes an oil change, gearcase lube, filters, and spark plugs. Routine service is critical in Fort Myers due to saltwater exposure and high usage during boating season.

3. Can lithium batteries be used for trolling motors?
Yes, lithium batteries like the 36V Abyss deep-cycle model are ideal for trolling motors. They provide longer run time, faster charging, lighter weight, and Bluetooth monitoring. They’re perfect for fishermen needing reliable power across long days, especially in Florida waters.

4. What are the advantages of upgrading to a lithium trolling motor battery?
Lithium marine batteries offer key advantages:

  • Up to 70% lighter than AGM/lead-acid
  • Maintains voltage longer during discharge
  • Charges 4x faster
  • Lasts 10+ years with proper maintenance
  • Bluetooth app monitoring (for brands like Abyss)

These upgrades are becoming popular among serious anglers in Fort Myers and the Gulf Coast.

5. Do you offer on-the-water or dockside marine service in Fort Myers?
Yes! Island Marine Repair LLC specializes in mobile boat repair and dockside marine services throughout Fort Myers, Cape Coral, Sanibel, and surrounding areas. Whether you need Yamaha engine service, electrical upgrades, or diagnostics, we bring the shop to your slip or driveway.

6. How do I know if my fuel filter or spark plugs need replacement?
Symptoms of a clogged fuel filter or worn spark plugs include hard starting, engine hesitation, loss of power, and rough idle. In the photos above, we found damaged filters and corroded spark plugs causing performance issues. These are common problems during spring commissioning in saltwater environments.

7. Can I replace trolling motor batteries myself, or should I hire a marine tech?
While DIY is possible, marine battery upgrades—especially when switching to lithium—require proper wiring, voltage matching, fuse protection, and charging system compatibility. A certified mobile tech ensures safe installation and avoids damage to your motor, charger, or console electronics.

8. Why is mobile marine service better than taking my boat to a shop?
Mobile marine service saves time, towing hassle, and labor costs. Technicians like us come to your dock, storage lot, or driveway and perform full diagnostics and repairs on-site. In Fort Myers, this is especially helpful during peak season when trailer parking and marina space are limited.

9. What kind of boats do you service with Yamaha outboards and trolling motors?
We work on center consoles, bay boats, fishing boats, flats boats, and offshore vessels powered by Yamaha outboards. We also install and service trolling motors (Minn Kota, Rhodan, etc.) for inshore and offshore fishing clients.

10. How much does a Yamaha outboard service and lithium battery install cost in Fort Myers?
Costs vary depending on the outboard model, battery system, and labor hours. On average:

  • Yamaha 100-hour service: $350–$550
  • Lithium trolling motor setup: $1,200+ including battery and install
    Call Island Marine Repair LLC for a free quote based on your setup and location.
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