Yamaha Motor University Exam Questions & Answers |
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2026 latest update!!
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Terms in this set (76)
-The Powerhead -is where the motor is located
-Outboards -combine the motor and drive into a single packaged unit
-Steering -can be controlled by remote or direct methods
-Inboard motors -are common on large vessels
Oil seal is designed to keep ___ in and prevent _____ or oil/water
dust from coming in from outside
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 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) Sharp-edged/ -><-
corner and other is angled (45 degrees). Install a circle
with the ___________ side opposite the direction of force/
, -a touque wrench is used -for tightening a bolt or nut to the specified torque
-a dial gauge is used -to measure the runout or deflection of a shaft or plane
-a vernier caliper is used -for measurement of inside, outside diameters and depths
-a reamer is used -to finish precision bores of valve stems and other bushings
-a pressure gauge can be used- -to measure intake vauum
-a micrometer can be used -to measure thickness very accurately
Identify the different combustion chamber designs Hemispherical (2) Wedge (1)
During the intake stroke what is the correct order? -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 2
complete four stroke process?
Which valve can handle higher heat? exhaust valve
-remove carbon residue -compression ring
-guide lubrication oil into the piston through the oil -oil ring
discharge holes on the surface of the oil ring and -oil ring
piston during its downward travel -compression ring
-remove oil from the wall surface during the intake -oil ring
process
-provide a seal between the piston and cylinder during
the four strokes
-guide lubrication oil into the piston through the oil
discharge holes on the surface of the oil ring and
piston during its upward travel
-four stroke engines -can operate stable at low rpm, idling RPM can be set at a lower value
-two stroke engines -cannot operate stable at low rpm, idling RPM must be set to a higher value
What type of gauge obtains signals from the ECM and LAN Gauges
can be linked together?
This tachometer indicated the speed of the boat false
-tach -engine RPM, trim angle, oil level, warning lamps, hour meter
-fuel management -displayes fuel consumption, fuel economy, fuel contamination warning
-speed -displays speed, trip time, fuel, battery voltage
drag and drop each term to its corresponding location lift (up)
negative pressure (under lift)
positive pressure (other side)
100% Verified solutions |Questions with Correct Answers
2026 latest update!!
Leave the first rating
Save
Students also studied
Flashcard sets Study guides
ECE 2020 ATT Test 11 NMEA fundamentals Ele
Teacher 51 terms Teacher 148 terms Teacher 8 terms Te
mumog80219 Preview AlcorbGeneralStore Preview bensonfujoh Preview
Terms in this set (76)
-The Powerhead -is where the motor is located
-Outboards -combine the motor and drive into a single packaged unit
-Steering -can be controlled by remote or direct methods
-Inboard motors -are common on large vessels
Oil seal is designed to keep ___ in and prevent _____ or oil/water
dust from coming in from outside
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 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) Sharp-edged/ -><-
corner and other is angled (45 degrees). Install a circle
with the ___________ side opposite the direction of force/
, -a touque wrench is used -for tightening a bolt or nut to the specified torque
-a dial gauge is used -to measure the runout or deflection of a shaft or plane
-a vernier caliper is used -for measurement of inside, outside diameters and depths
-a reamer is used -to finish precision bores of valve stems and other bushings
-a pressure gauge can be used- -to measure intake vauum
-a micrometer can be used -to measure thickness very accurately
Identify the different combustion chamber designs Hemispherical (2) Wedge (1)
During the intake stroke what is the correct order? -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 2
complete four stroke process?
Which valve can handle higher heat? exhaust valve
-remove carbon residue -compression ring
-guide lubrication oil into the piston through the oil -oil ring
discharge holes on the surface of the oil ring and -oil ring
piston during its downward travel -compression ring
-remove oil from the wall surface during the intake -oil ring
process
-provide a seal between the piston and cylinder during
the four strokes
-guide lubrication oil into the piston through the oil
discharge holes on the surface of the oil ring and
piston during its upward travel
-four stroke engines -can operate stable at low rpm, idling RPM can be set at a lower value
-two stroke engines -cannot operate stable at low rpm, idling RPM must be set to a higher value
What type of gauge obtains signals from the ECM and LAN Gauges
can be linked together?
This tachometer indicated the speed of the boat false
-tach -engine RPM, trim angle, oil level, warning lamps, hour meter
-fuel management -displayes fuel consumption, fuel economy, fuel contamination warning
-speed -displays speed, trip time, fuel, battery voltage
drag and drop each term to its corresponding location lift (up)
negative pressure (under lift)
positive pressure (other side)
