Yamaha Motor Tech Certification Test
Practice 2026 Guide
1. Why does the U.S. add Ethanol to Gasoline To add in a renewable resource
2. What would be a symptom of an outboard Thermo- Engine Runs cold at idle
stat stuck in the (OPEN) position?
3. What is the proper Oil Level on the Oil Dipstick. Centered on the crosshatch
marks between the top and bot-
tom line
4. What is a result of Valve Clearance being too tight Valves can be burnt
5. According to your Service Manual, Maintenance 100 hours / 1 year
Cycles should be completed every hours
or yr/yrs after the initial Break in service is
completed
6. Anodes should be replace when they are % 50%
gone
7. If there is no water flowing from the Indicator (Tell False
Tale) while the engine is running, it is a clear sign
that your engine is overheating.
8. Rake Angle of the blades in relation to
the hub, measured in Degrees
9. Diameter Total width of a circle measured
at the blade tips as the propeller
spins
10. Cup Small curved lip or trailing edge
11. Pitch
1/5
, Yamaha Motor Tech Certification Test
Practice 2026 Guide
Theoretical distance a propeller
would travel in one full rotation
into a solid
12. Which of the following is a true statement in refer- The Larger the Diameter the
ence to the diameter of a propeller deeper into the water it reaches
and the more push it has
13. How does changing the Pitch of a propeller impact each inch of pitch changes ap-
the engine RPM (Revolutions Per Minute?) proximately 150 +/- 50 RPMs
14. What is the Maximum Percentage of ethanol ac- 10%
ceptable in Yamaha outboard engines
15. What is the best method to prevent fuel from dete- Don't store fuel
riorating in storage
16. You CAN use a SDS (Shift Dampener System) Hub true
on the Yamaha F/FL 150 Outboard Platform
17. What postion should the outboard be in while Fully trimmed up
checking the PTT (Power Trim Tilt) Fluid Level
18. On the Parts Manager Pros Scheduled Service False
Parts page, it list ALL parts required to do service
on the engine.
19. The Water Pump Housing comes with the Water True
Pump Repair Kit
20. Before removing the Lower Unit for service work, Neutral
what position should the Gear Selector be in
21. True
2/5
Practice 2026 Guide
1. Why does the U.S. add Ethanol to Gasoline To add in a renewable resource
2. What would be a symptom of an outboard Thermo- Engine Runs cold at idle
stat stuck in the (OPEN) position?
3. What is the proper Oil Level on the Oil Dipstick. Centered on the crosshatch
marks between the top and bot-
tom line
4. What is a result of Valve Clearance being too tight Valves can be burnt
5. According to your Service Manual, Maintenance 100 hours / 1 year
Cycles should be completed every hours
or yr/yrs after the initial Break in service is
completed
6. Anodes should be replace when they are % 50%
gone
7. If there is no water flowing from the Indicator (Tell False
Tale) while the engine is running, it is a clear sign
that your engine is overheating.
8. Rake Angle of the blades in relation to
the hub, measured in Degrees
9. Diameter Total width of a circle measured
at the blade tips as the propeller
spins
10. Cup Small curved lip or trailing edge
11. Pitch
1/5
, Yamaha Motor Tech Certification Test
Practice 2026 Guide
Theoretical distance a propeller
would travel in one full rotation
into a solid
12. Which of the following is a true statement in refer- The Larger the Diameter the
ence to the diameter of a propeller deeper into the water it reaches
and the more push it has
13. How does changing the Pitch of a propeller impact each inch of pitch changes ap-
the engine RPM (Revolutions Per Minute?) proximately 150 +/- 50 RPMs
14. What is the Maximum Percentage of ethanol ac- 10%
ceptable in Yamaha outboard engines
15. What is the best method to prevent fuel from dete- Don't store fuel
riorating in storage
16. You CAN use a SDS (Shift Dampener System) Hub true
on the Yamaha F/FL 150 Outboard Platform
17. What postion should the outboard be in while Fully trimmed up
checking the PTT (Power Trim Tilt) Fluid Level
18. On the Parts Manager Pros Scheduled Service False
Parts page, it list ALL parts required to do service
on the engine.
19. The Water Pump Housing comes with the Water True
Pump Repair Kit
20. Before removing the Lower Unit for service work, Neutral
what position should the Gear Selector be in
21. True
2/5
