Vortex ROK DVS J, Owner'S Manual

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MAINTENANCE
DVS-Junior
22
4.6.3 SPARK PLUG CLEANING AND REPLACEMENT
Spark Plug Wrench
Metal Brush
Risk of burning: Perform this task ONLY when engine is cool.
Oils produce carbon deposits or residues that make necessary
the spark plug to be checked and cleaned, at least every 5 hours.
Remove the spark plug and clean it by using a brass metal brush.
Use a specific spark plug gap gauge to set up correct gap.
Correct gap: 0,8 mm.
Every 30 hours is highly recommended to change spark plug.
4.6.4 EXHAUST CLEANING
Metal Brush
Heater
Oils produce carbon deposits or residues that make necessary the exhaust to be checked and
cleaned, at least every 10 hours.
Disassemble the exhaust from the engine by removing the two springs and check the exhaust
carefully.
Heat the exhaust with a heater and remove all carbon deposits with a metal brush.