Mash Side 400 Mode D'emploi page 32

Caution
Application of engine oil of poor quality will have an
impact on the functional performance and life span of the
motorcycle engine.
Cleaning of Lubricating Oil Strainer
It shall be carried out while replacing lubricating oil.
While cleaning, you should unscrew the oil drain plug to drain
the waste engine oil, and flush the strainer with cleaning agent;
place the motorcycle side down to facilitate cleaning as required.
Then insert the oil drain plug, and proceed with the remaining steps
according to the method of "Replacement of lubricating oil".
Cleaning and Replacement of Lubricating Oil Filter
Remove the engine oil filter cover to detach the engine oil
filter element, clean the filter cover and filter element with cleaning
agent, and then mount the clean engine oil element. Replace with a
Screw plug for oil draining
new one as required.
Check for damage of the engine oil filter cover and its
O-shaped sealing ring; replace with a new one as required.
Mount the engine oil filter cover and screw up the bolt to the
specified torque.
Notice
Before the crankcase is refilled with fresh engine oil, the
engine oil filter must be cleaned.
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Remove oil filter cover
Oil filter