KYMCO AK 550 Service Manual page 240

6.Fuel System
AK 550
Data Analysis Procedure
Press the down button (right) to move the item selector down to the DATA
Analyze item. Press enter to bring up the DATA Analyze page 01 shown below.
Press the down button to continue through the seven DATA Analyze pages.
Page 01
The 01 page shows engine speed, idle speed set point, and battery voltage.
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