See full version: How to Break in Yamaha Outboards
Hold the engine speed to 3,000 rpm during the second hour of operation. This means you shouldn't go faster than about 3/4-throttle, rather than wide-open throttle during the second hour of your 10-hour break-in process. [links]
Your new Yamaha outboard requires you to operate your outboard for 10-hours "under load." This means that, to break in your boat's new engine properly, you have to have the outboard on the boat and you have to go boating. These 10 hours are the most important hours of the engine's life. When undertaken with a determination to ensure your outboard's long and happy maritime career, boating through the break-in process is a small sacrifice. more
Limit the throttle setting to about half-throttle for the first hour. Watch the tachometer -- the optimum speed for the first hour is 2,000 rpm during the first hour. [links]
Restrain yourself during the next eight hours of boating -- you may operate at WOT for only five minutes at a time. After those eight hours, though, you may operate as you desire, since you have broken in your Yamaha outboard properly. more
Not sure what parts should be changed at 100 hours? Check out our Yamaha Service Information link for Yamaha's maintenance schedules.
Our 100 Hour Maintenance Kits come with Yamalube outboard engine oil, oil filter, oil drain plug gasket, lower unit gear lube oil, lower unit vent and plug gaskets, the primary fuel filter on the engine, the gasket for the cup the filter sits in, and a disposable funnel. For those that have a fuel water separating filter installed on their boat, we carry Yamaha and Racor , and since not everyone uses the same one, we do not include them in our kits. Fuel water separating filters should be replaced every 50 hours as well. Spark plugs, internal and external anodes, thermostats, water pump, pressure control valve, etc, should be checked every 100 hours and replaced as necessary. We do not include these parts in our 100 hour kits for that reason.
In 1492 Native Americans discovered Columbus lost at sea
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450 hours is not a lot depending on how the maintenace was down and the above will answer most of your questions.
I'm looking at a used boat with 450 hours on a 4 stroke yamaha outboard.
In 1492 Native Americans discovered Columbus lost at sea
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Yamaha F115LB Outboard Motor 4 Stroke 115hp Long Shaft EFI
Features:
16-Valve DOHC Direct-Action In-line 4
Precision Multi-Point Fuel Injection System
Double overhead camshaft
Yamaha Digital Network System
Freshwater Flushing device
45A alternator & ECM
Supplied with Rig Kit B2 more
Specifications
Engine Type 4-Stroke, 16 Valve DOHC Direct Action In-line 4
Displacement 1832 cc
Bore x Stroke 79 x 88.8 mm
Recommended Max RPM 5500-6000
Lubrication System Wet-sump
Fuel Management EFI
Ignition TCI
Starter System Electric
Alternator Output 12V – 25A with rectifier regulator
Operation Method Remote control
Trim & Tilt Method Power trim & tilt
Digital Network Gauges with Fuel Management Standard
Gear Ratio 2.15 : 1
OEDA Emission Rating .
Scavenging Double Overhead Camshaft
Oil Pan Capacity (litres) 4.5
Max. Fuel Consumption 38 l/h @ 6000rpm
Spark Plug LFR6A-11
Gear Shift F-N-R
Exhaust system Through Propeller Hub (Jet)
Prop. Engagement Spline
Includes:
Outboard
Yamaha Alloy Prop
Yamaha 703 Side Control Box and Yamaha looms/wiring
2x Yamaha multi function digital gauges(Tacho and Speedo, Fuel level, Battery level, Trim, Hours, Warnings, etc)
Battery, Steering, Fuel filter, Fuel tank
Trim limiter(if required)