Polaris msx 150 User Manual

99
ENGINE TROUBLESHOOTING
Engine Overheats
Possible Cause Solution See Page
Clogged jet pump intake Clean intake 93
Use of non-recommended fuel or oil Replace with recommended fluids 38, 76
Sand or debris in cooling system Flush the cooling system 82
Plugged cooling system Inspect and clean cooling system 82
Clogged exhaust pipe orifice fitting Clean orifice fitting --
Engine Backfires
Possible Cause Solution See Page
Weak spark from spark plugs Inspect, clean and/or replace spark plugs 86
Incorrect spark plug gap Set gap to specs or replace plugs 86
Old or non-recommended fuel Replace with fresh recommended fuel 38
Incorrectly installed spark plug wires See your Polaris dealer --
Broken valves See your Polaris dealer --
Incorrect ignition timing See your Polaris dealer --
Mechanical failure See your Polaris dealer --
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Polaris msx 150 Specifications

General

Brand	Polaris
Model	msx 150
Category	Boat
Language	English