Trouble Recovery
69
A. Have serviced by a Yamaha dealer.
Q. Is load on boat improperly distributed?
A. Distribute load to place boat on an even
plane.
Q. Is water pump or thermostat faulty?
A. Have serviced by a Yamaha dealer.
Q. Is there excess water in fuel filter cup?
A. Drain filter cup.
Engine power loss.
Q. Is propeller damaged?
A. Have propeller repaired or replaced.
Q. Is propeller pitch or diameter incorrect?
A. Install correct propeller to operate out-
board at its recommended speed (r/min)
range.
Q. Is trim angle incorrect?
A. Adjust trim angle to achieve most efficient
operation.
Q. Is motor mounted at incorrect height on
transom?
A. Have motor adjusted to proper transom
height.
Q. Has warning system activated?
A. Find and correct cause of warning.
Q. Is boat bottom fouled with marine growth?
A. Clean boat bottom.
Q. Are spark plug(s) fouled or of incorrect
type?
A. Inspect spark plug(s). Clean or replace
with recommended type.
Q. Are weeds or other foreign matter tangled
on gear housing?
A. Remove foreign matter and clean lower
unit.
Q. Is fuel system obstructed?
A. Check for pinched or kinked fuel line or
other obstructions in fuel system.
Q. Is fuel filter clogged?
A. Clean or replace filter.
Q. Is fuel contaminated or stale?
A. Fill tank with clean, fresh fuel.
Q. Is spark plug gap incorrect?
A. Inspect and adjust as specified.
Q. Is ignition wiring damaged or poorly con-
nected?
A. Check wires for wear or breaks. Tighten
all loose connections. Replace worn or bro-
ken wires.
Q. Have electrical parts failed?
A. Have serviced by a Yamaha dealer.
Q. Is specified fuel not being used?
A. Replace fuel with specified type.
Q. Is specified engine oil not being used?
A. Check and replace oil with specified type.
Q. Is thermostat faulty or clogged?
A. Have serviced by a Yamaha dealer.
Q. Is air vent screw closed?
A. Open the air vent screw.
Q. Is fuel pump damaged?
A. Have serviced by a Yamaha dealer.
Summary of Contents for VZ150
Page 1: ...VZ150 VZ175 OWNER S MANUAL 68J 28199 19 U S A Edition LIT 18626 07 01 ...
Page 2: ...EMU25071 ZMU01690 Read this owner s manual carefully before operating your outboard motor ...
Page 6: ...Table of contents THE USA OR CANADA 81 ...
Page 72: ...Maintenance 66 ZMU01943 ...
Page 82: ...76 Consumer information EMU29811 Important warranty information for U S A and Canada ...
Page 83: ...Consumer information 77 ...
Page 85: ...Consumer information 79 ...
Page 86: ...Consumer information 80 ...
Page 88: ......
Page 89: ......
Page 90: ...Printed in Japan April 2006 0 1 1 Printed on recycled paper ...
Page 92: ...PLACE POSTAGE HERE ATTN WARRANTY DEPARTMENT Warranty card 04 2 17 03 2 41 PM Page 2 ...