Manual Release Valve on Outboard Trim: When and How to Use It
Your trim system just quit. The motor won't raise. You're stuck with the engine pointed straight down, and you need to get back to the dock — or at least...
SeaSierra Team |
Outboard 101
Manual Release Valve on Outboard Trim: When and How to Use It
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Reading Outboard Spark Plugs: What the Color Tells You
Spark plugs record engine condition. The color and deposits on a used plug reveal whether the engine is running rich, lean, or burning oil. This free diagnostic tool tells you...
SeaSierra Team |
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Outboard Spark Plug Replacement: The Right Plugs and Gaps
Wrong spark plugs or incorrect gaps cause misfires, hard starting, and poor fuel economy. Getting the plugs right is simple maintenance that affects every aspect of engine performance. This guide...
SeaSierra Team |
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Ethanol Fuel and Your Outboard: What You Need to Know
Ethanol-blended fuel is everywhere. In most of the US, finding ethanol-free gasoline means hunting for specialized marine fuel stations or paying premium prices. Meanwhile, ethanol presents real challenges for outboard...
SeaSierra Team |
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Outboard Fuel System Problems: Symptoms and Solutions
When an outboard runs rough, stalls, or won't start, the fuel system is often the culprit. Fuel issues account for roughly 60% of outboard engine problems—more than any other system....
SeaSierra Team |
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How to Replace Outboard Fuel Filter: Step-by-Step
A clogged fuel filter starves your engine. You'll notice hesitation at higher RPMs, rough idle, or hard starting before it gets bad enough to stall the engine completely. Replacing it...
SeaSierra Team |
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Understanding Your Outboard's Cooling System
Your outboard doesn't have a radiator or coolant reservoir like your car. It pumps raw water—straight from the lake or ocean—through the engine and back out the exhaust. This system...
SeaSierra Team |
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Outboard Running Hot? Here's How to Diagnose Overheating
An overheating outboard will let you know—usually with an alarm, a flashing light, or steam coming from places it shouldn't. What it won't tell you is why. That takes systematic...
SeaSierra Team |
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Outboard Thermostat Replacement: Signs, Steps, and Specs
A thermostat that fails closed causes overheating within minutes. One that fails open keeps the engine too cold, leading to carbon buildup, poor fuel economy, and accelerated wear. Either way,...
SeaSierra Team |
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How to Tell If Your Outboard Anodes Need Replacing
Anodes don't fail suddenly—they waste away gradually while protecting your outboard from corrosion. The trick is catching them before they're completely gone, because by then your lower unit has already...
SeaSierra Team |
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Outboard Anode Replacement Guide: Zinc, Aluminum, or Magnesium?
Sacrificial anodes protect your outboard's aluminum and steel components from galvanic corrosion. Pick the wrong material for your water type, and you'll either get inadequate protection or waste money on...
SeaSierra Team |
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How to Flush Your Outboard After Saltwater Use
Salt water is corrosive. It eats aluminum, clogs water passages, and destroys thermostats. An engine that runs in saltwater without flushing will fail years before one that's properly maintained. Flushing...
SeaSierra Team |
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Why Your Outboard Lower Unit Oil Looks Milky (And What to Do)
You drained the lower unit oil and it looks like a chocolate milkshake. That's not normal. Water has gotten into your gearcase, and if you keep running it, you're looking...
SeaSierra Team |
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Outboard Lower Unit Oil Change: When and How
The lower unit is a sealed gearbox running in water. The oil inside lubricates gears spinning at 5,000+ RPM and protects bearings from corrosion. When that oil breaks down or...
SeaSierra Team |
