Yamaha F115 User Manual

Trouble Recovery
107
A. Connect correctly.
Q. Is throttle valve adjustment incorrect?
A. Have serviced by a Yamaha dealer.
Q. Is battery cable disconnected?
A. Connect securely.
Alert buzzer sounds or indicator lights.
Q. Is cooling system clogged?
A. Check water intake for restriction.
Q. Is engine oil level low?
A. Fill oil tank with specified engine oil.
Q. Is heat range of spark plug incorrect?
A. Inspect spark plug and replace it with rec-
ommended type.
Q. Is specified engine oil not being used?
A. Check and replace oil with specified type.
Q. Is engine oil contaminated or deteriorated?
A. Replace oil with fresh, specified type.
Q. Is oil filter clogged?
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 outboard
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 alert system activated?
A. Find and correct cause of alert.
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 oth-
er 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.
U63P1DE0.book Page 107 Tuesday, March 29, 2011 7:15 PM
©2019 Yamaha Motor Corporation, U.S.A.

Yamaha F115 Specifications

General

Displacement	1832cc
Prop Shaft Horsepower	115 hp
Alternator Output	35 Amp
Gear Ratio	2.15:1
Starting System	Electric
Fuel Recommendation	Regular Unleaded (Minimum Pump Octane 87)
Oil Recommendation	Yamalube 4M
Exhaust	Through Propeller
Lubrication	Wet Sump
Steering	Remote
Cooling System	Water Cooled
Bore x Stroke	81.0 x 88.9 mm
Full Throttle RPM Range	5300-6300 rpm
Fuel Induction System	EFI (Electronic Fuel Injection)
Ignition System	TCI (Transistor Controlled Ignition)
Weight	377 lbs
Cooling	Water Cooled
Shaft Length	L = 20 inch, X = 25 inch