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Mercury 20 User Manual

Mercury 20
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OPERATION
32
ob01393
!
CAUTION
Never start or operate your outboard (even momentarily) without water circulating through all the cooling
water intake holes in the gearcase to prevent damage to the water pump (running dry) or overheating of
the engine.
2. Lower the outboard to the run position.
3. Make sure the cooling water intake is submerged.
ob00347
Engine Break‑in Procedure
!
CAUTION
Severe damage to the engine can result by not complying with the Engine Break‑in Procedure.
ENGINE BREAK-IN FUEL MIXTURE
Use a 25:1 (4%) gasoline/oil mixture in the first tank of fuel.
BREAK-IN PROCEDURE
Vary the throttle setting during the first hour of operation. During the first hour of operation, avoid remaining at
a constant speed for more than two minutes and avoid sustained wide open throttle.
Starting The Engine ‑ Tiller Handle Models
Before starting, read the Pre‑Starting Check List, Special Operating Instructions, and Engine Break‑in Procedure
in the Operation Section.
1. Open fuel tank vent on manual venting type tanks.

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Mercury 20 Specifications

General IconGeneral
BrandMercury
Model20
CategoryOutboard Motor
LanguageEnglish

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