Yamaha Motor University Exam
Questions & Answers 2026 Questions and
Answers
-The Powerhead
-Outboards
-Steering
-Inboard motors - Correct answer--is where the motor is located
-combine the motor and drive into a single packaged unit
-can be controlled by remote or direct methods
-are common on large vessels
Oil seal is designed to keep ___ in and prevent _____ or dust from coming in from
outside - Correct answer-oil/water
The bracket is used to: - Correct answer--attaches the motor to the boat
-it allows for trim and tilt movements
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,-it allows the motors to pivot which allows steering
-acts as a shock absorber if the lower unit hits an underwater object while the boat
is at speed
One side of the Circlip has a sharp-edged (90 degrees) corner and other is angled
(45 degrees). Install a circle with the ___________ side opposite the direction of
force/ - Correct answer-Sharp-edged/ -><-
-a touque wrench is used
-a dial gauge is used
-a vernier caliper is used
-a reamer is used
-a pressure gauge can be used-
-a micrometer can be used - Correct answer--for tightening a bolt or nut to the
specified torque
-to measure the runout or deflection of a shaft or plane
-for measurement of inside, outside diameters and depths
-to finish precision bores of valve stems and other bushings
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, -to measure intake vauum
-to measure thickness very accurately
Identify the different combustion chamber designs - Correct answer-Hemispherical
(2) Wedge (1)
During the intake stroke what is the correct order? - Correct answer--the intake
valve is opened
-the piston moves downward
-a negative pressure is produced in the cylinder
-the air-fuel mixture is taken in
How many flywheel revolutions are there in the complete four stroke process? -
Correct answer-2
Which valve can handle higher heat? - Correct answer-exhaust valve
-remove carbon residue
-guide lubrication oil into the piston through the oil discharge holes on the surface
of the oil ring and piston during its downward travel
-remove oil from the wall surface during the intake process
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
Questions & Answers 2026 Questions and
Answers
-The Powerhead
-Outboards
-Steering
-Inboard motors - Correct answer--is where the motor is located
-combine the motor and drive into a single packaged unit
-can be controlled by remote or direct methods
-are common on large vessels
Oil seal is designed to keep ___ in and prevent _____ or dust from coming in from
outside - Correct answer-oil/water
The bracket is used to: - Correct answer--attaches the motor to the boat
-it allows for trim and tilt movements
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,-it allows the motors to pivot which allows steering
-acts as a shock absorber if the lower unit hits an underwater object while the boat
is at speed
One side of the Circlip has a sharp-edged (90 degrees) corner and other is angled
(45 degrees). Install a circle with the ___________ side opposite the direction of
force/ - Correct answer-Sharp-edged/ -><-
-a touque wrench is used
-a dial gauge is used
-a vernier caliper is used
-a reamer is used
-a pressure gauge can be used-
-a micrometer can be used - Correct answer--for tightening a bolt or nut to the
specified torque
-to measure the runout or deflection of a shaft or plane
-for measurement of inside, outside diameters and depths
-to finish precision bores of valve stems and other bushings
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, -to measure intake vauum
-to measure thickness very accurately
Identify the different combustion chamber designs - Correct answer-Hemispherical
(2) Wedge (1)
During the intake stroke what is the correct order? - Correct answer--the intake
valve is opened
-the piston moves downward
-a negative pressure is produced in the cylinder
-the air-fuel mixture is taken in
How many flywheel revolutions are there in the complete four stroke process? -
Correct answer-2
Which valve can handle higher heat? - Correct answer-exhaust valve
-remove carbon residue
-guide lubrication oil into the piston through the oil discharge holes on the surface
of the oil ring and piston during its downward travel
-remove oil from the wall surface during the intake process
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
