Yamaha MCP Inline Section 3

It is recommended to use Ring Free Plus ____ 

• 1oz per 50 gallons of fuel (continuous use) 

• As an oil additive for “shock treatment” only 

• 2oz per every 5 quarts of engine oil 

• 1oz per 10 gallons of fuel (continuous use) 

You can use automotive oils in your Yamaha Outboard if minimum specs are met. 

• True

• False

The engine specs call for a B7HS-10 NGK spark plug, but someone has installed a BR7HS-10. How will the engine be affected? 

• The engine will not be affected. 

• The engine could skip and run rough due to excess RFI at the ECU. 

• The spark plug will overheat and lead to detonation in the combustion chamber. 

• The spark will be “delayed” and the engine will lose power. 

YIEC can be bought over the counter at your local dealership. 

• True

• False

Which of the following should you do prior to checking the engine oil level on an engine that has been run? 

• Loosen the fill screw to vent the crankcase. 

• After running the engine, wait five minutes before pulling the dipstick. 

• Tilt the engine at least half way up for at least five minutes, then tilt down until level. 

• Ensure the engine is trimmed all the way down. 

Before doing any extensive valve adjustment work on a 4-stroke engine, what should you do first? 

• Drain the engine oil to prevent debris from entering the cylinder head. 

• Replace the timing belt and recheck valve clearance. 

• Decarbonize the engine. 

• Run a heavier grade engine oil for 10 hours, then recheck valve clearance. 

Draining the engine oil through the drain screw versus extracting it through the dipstick tube, guarantees all the oil will be removed. 

• True

• False

When checking engine oil level on a Yamaha, you need to remove the dipstick more than once because the dipstick tube is not vented to the atmosphere. 

• True

• False

The engine specs call for a BR7HS-10 NGK spark plug, but someone has installed a B7HS-10. How will the engine be affected? 

• The engine will not be affected. 

• The engine could skip and run rough due to excess RFI at the ECU. 

• The spark plug will overheat and lead to detonation in the combustion chamber. 

• The spark will be “delayed” and the engine will lose power. 

Yamaha Ring Free _____________. 

• increases anti-knock value of fuel 

• is an oil additive 

• removes carbon deposits 

• all are correct