Yamaha Motor University
Study online at https://quizlet.com/_b08vzz
1. -The Powerhead -is where the motor is lo-
-Outboards cated
-Steering -combine the motor and
-Inboard motors drive into a single pack-
aged unit
-can be controlled by re-
mote or direct methods
-are common on large
vessels
2. Oil seal is designed to keep ___ in and prevent _____ or oil/water
dust from coming in from outside
3. The bracket is used to: -attaches the motor to the
boat
-it allows for trim and tilt
movements
-it allows the motors to
pivot which allows steer-
ing
-acts as a shock absorber if
the lower unit hits an un-
derwater object while the
boat is at speed
4. One side of the Circlip has a sharp-edged (90 degrees) Sharp-edged/ -><-
corner and other is angled (45 degrees). Install a cir-
cle with the ___________ side opposite the direction of
force/
5. -a touque wrench is used -for tightening a bolt
-a dial gauge is used or nut to the specified
, Yamaha Motor University
Study online at https://quizlet.com/_b08vzz
-a vernier caliper is used torque
-a reamer is used -to measure the runout or
-a pressure gauge can be used- deflection of a shaft or
-a micrometer can be used plane
-for measurement of in-
side, outside diameters
and depths
-to finish precision bores
of valve stems and other
bushings
-to measure intake vau-
um
-to measure thickness very
accurately
6. Identify the different combustion chamber designs Hemispherical (2) Wedge
(1)
7. During the intake stroke what is the correct order? -the intake valve is
opened
-the piston moves down-
ward
-a negative pressure is
produced in the cylinder
-the air-fuel mixture is tak-
en in
8. How many flywheel revolutions are there in the com- 2
plete four stroke process?
9. Which valve can handle higher heat? exhaust valve
10.
Study online at https://quizlet.com/_b08vzz
1. -The Powerhead -is where the motor is lo-
-Outboards cated
-Steering -combine the motor and
-Inboard motors drive into a single pack-
aged unit
-can be controlled by re-
mote or direct methods
-are common on large
vessels
2. Oil seal is designed to keep ___ in and prevent _____ or oil/water
dust from coming in from outside
3. The bracket is used to: -attaches the motor to the
boat
-it allows for trim and tilt
movements
-it allows the motors to
pivot which allows steer-
ing
-acts as a shock absorber if
the lower unit hits an un-
derwater object while the
boat is at speed
4. One side of the Circlip has a sharp-edged (90 degrees) Sharp-edged/ -><-
corner and other is angled (45 degrees). Install a cir-
cle with the ___________ side opposite the direction of
force/
5. -a touque wrench is used -for tightening a bolt
-a dial gauge is used or nut to the specified
, Yamaha Motor University
Study online at https://quizlet.com/_b08vzz
-a vernier caliper is used torque
-a reamer is used -to measure the runout or
-a pressure gauge can be used- deflection of a shaft or
-a micrometer can be used plane
-for measurement of in-
side, outside diameters
and depths
-to finish precision bores
of valve stems and other
bushings
-to measure intake vau-
um
-to measure thickness very
accurately
6. Identify the different combustion chamber designs Hemispherical (2) Wedge
(1)
7. During the intake stroke what is the correct order? -the intake valve is
opened
-the piston moves down-
ward
-a negative pressure is
produced in the cylinder
-the air-fuel mixture is tak-
en in
8. How many flywheel revolutions are there in the com- 2
plete four stroke process?
9. Which valve can handle higher heat? exhaust valve
10.
