Evinrude Tank

How do i do a tune-up on an outboard motor?

The motor is an older evinrude 140 v4 not sure on the year. This is going to be my first tune up that i have ever done

One of the interesting "marketing" tools for many outboard shops was a "Tune Up Special". In truth since the introduction of fixed jet carburetors and CD ignition systems, there is little to "tune up."

We would routinely change the plugs, and lower unit oil (really just routine maintenance) and put it in the test tank. Check the timing and throttle cam operation. Make sure it ran ok and that was it.

These engines had a bad habit of loosing compression on one cylinder. Most often a ring issue. So, that's a simple compression test. You can do that with the engine still mounted on the boat. It's done by removing one plug at a time and cranking but not starting the engine. You can get a spark checker and connect it to the plug wire to protect the CD ignition. If you have a very low cylinder, you'll need to get it repaired before it fails.

OMC (Evinrude/Johnson). makes a "tune-up in a can". It's really a solvent/oil blend designed to de-carbon the head and free sticking rings. You just follow the instructions on the can. Note this will not fix an engine with cylinder damage.

The service manuals will give you step by step instructions for a "Link-N-Sync" and declining the head. In truth just check out Youtube:

See:https://www.youtube.com/watch?v=1y1X0V9wKx8
See:https://www.youtube.com/watch?v=rtvKZyxbVdg

Vintage Evinrude 6 Gal Gas tank
Vintage Evinrude 6 Gal Gas tank
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evinrude lightwin 3hp 1964 3402c gas tank
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1967 EVINRUDE 18 HP FASTWIN OUTBOARD BOAT MOTOR with CONTROLS and TANK
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Vintage Evinrude Cruis a Day Outboard Motor Marine Boat Gas Tank 6 Gal Fuel
Vintage Evinrude Cruis a Day Outboard Motor Marine Boat Gas Tank 6 Gal Fuel
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NEW OEM OMC Johnson  Evinrude Fuel Tank Indicator Lens 312190 NOS
NEW OEM OMC Johnson Evinrude Fuel Tank Indicator Lens 312190 NOS
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evinrude johnson outboard motor lightwin jw 52 54 3012 gas tank base
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1996 Evinrude 35hp Oil Tank Assembly P N 436033
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1952 Evinrude 75 HP Model 4443 Outboard Fuel Tank
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1949 Evinrude Elto Sportster 5 HP Gas Tank
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NEW OEM EVINRUDE JOHNSON 18 GALLON OIL TANK PICK UP ASSY 177285 5008618
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NEW OEM EVINRUDE JOHNSON 18 GALLON OIL TANK ASSY 177284 0177284
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EVINRUDE CRUISE A DAY OUTBOARD GAS TANK PRESSURIZED 6 GALLON DUAL LINE PRESSURE
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Vintage Johnson Evinrude OMC Outboard Motor Marine Boat Gas Tank 6 Gal Fuel
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OMC JOHNSON OR EVINRUDE GAS TANK HOSE VALVE 396461 BRAND NEW FREE SHIPPING
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OEM JOHNSON EVINRUDE OMC 332085 OUTBOARD MOTOR MINI GAS TANK CONNECTOR 0332085
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NEW OEM JOHNSON EVINRUDE OMC 332109 OUTBOARD MOTOR GAS TANK CAP GASKET 0332109
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Primer button 2 line pressure tank Johnson Evinrude outboard
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Evinrude Cruise A Day Fuel Tank Top Assembly
Evinrude Cruise A Day Fuel Tank Top Assembly
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VRO OIL TANK CAP JOHNSON EVINRUDE SEADRIVE OUTBOARD MOTOR 176217 NEW
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evinrude Aquasonic outboard Motor And Fuel Tank
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18 8063 Tank Connector Sierra Fits Johnson Evinrude
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Evinrude Crus A Day Four Tank Decal 2 PAK FREE SHIP + FREE Fish Decal
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Evinrude Crus A Day Vintage 6 Gal Tank Decal 2 PAK FREE SHIP + Free Fish Decal
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EVINRUDE BOAT TANK
EVINRUDE BOAT TANK
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Vintage Evinrude Johnson Outboard Motor Steel Gas Tank Fuel Tank 6 Gallon LOOK
Vintage Evinrude Johnson Outboard Motor Steel Gas Tank Fuel Tank 6 Gallon LOOK
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Time Remaining: 4d 5h 36m

Evinrude Fastwin 18 hp outboard motor with gas tank
Evinrude Fastwin 18 hp outboard motor with gas tank
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1946 1950 Johnson Evinrude OMC 25 HP HD 25 Outboard Fuel Gas Tank w Cap
1946 1950 Johnson Evinrude OMC 25 HP HD 25 Outboard Fuel Gas Tank w Cap
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Johnson Evinrude P323369 Link fuel tank cap
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Johnson Evinrude 5007587 OIL PUMP  5007250 OIL TANK
Johnson Evinrude 5007587 OIL PUMP 5007250 OIL TANK
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OMC Johnson Evinrude Internal Oil Tank Cap NEW P N 5005179
OMC Johnson Evinrude Internal Oil Tank Cap NEW P N 5005179
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Evinrude 0127093 SEAL Manifold to tank
Evinrude 0127093 SEAL Manifold to tank
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Johnson Evinrude Fuel Tank Tap
Johnson Evinrude Fuel Tank Tap
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1948 Evinrude Sportwin 33hp 4423 Outboard Motor Gas Tank Assembly
1948 Evinrude Sportwin 33hp 4423 Outboard Motor Gas Tank Assembly
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Housing to Tank Gasket OMC Johnson Evinrude For 6 Gallon 332403 125530 18 2881
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Fuel Tank Gasket for Johnson Evinrude OMC 18 2887 Replaces 302557
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Johnson Evinrude OMC BRP VRO 18 gallon oil tank w holder prime bulb line
Johnson Evinrude OMC BRP VRO 18 gallon oil tank w holder prime bulb line
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NEW Johnson Evinrude Fuel Tank Indicator Lens 312190 1968 1997 10 150HP
NEW Johnson Evinrude Fuel Tank Indicator Lens 312190 1968 1997 10 150HP
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Vintage Johnson Evinrude Pressure Fuel Tank Connector Male Motor End OMC
Vintage Johnson Evinrude Pressure Fuel Tank Connector Male Motor End OMC
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OMC Johnson Evinrude Gas Tank Viewer Lens 0302568
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TEMPO Outboard Motor Metal Gas Tank for Johnson Evinrude OMC 6 Gallon
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New 383783 Fuel Tank Vent Evinrude Johnson Outboard 3  6 Gallon Gas Fuel Tank
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New Genuine OMC Johnson Evinrude 175532 Dual Oil Tank Pump Pick Up Kit
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FUEL LINE BOAT TANK FEMALE CONNECTOR FOR JOHNSON EVINRUDE 5 16 BARBFIVE OCEANS
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Gas tank connector for Johnson and Evinrude outboard motors
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EVINRUDE 40 60HP E TEC 2006  up era COMPLETE OIL TANK  PUMP ASSEMBLY
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admin posted at 2013-5-12 Category: Boat Parts