2008 YAMAHA YFM50R octane

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YAMAHA YFM50R 2008  Owners Manual  
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EBU18752 
Fuel  
Make sure that there is sufficient fuel in the tank.
Fill the fuel tank to the bottom of the filler tube as
shown.NOTE: 
If knocking or pinging occurs,

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of gasoline or higher octane grade.
CAUTION:
 
ECB00070  
Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such