Every 7,500 km should be drained from the fuel filter.
PERFORMANCE ORDER
1. Unscrew the screw a few turns (see arrow) to remove the air from the filter.
2. Remove the bottom of the filter plug (arrow) and merge about 100 cm 3 liquid.
3. Install the plug and bolt.
4. Check for leaks by starting the engine and letting it run at idle. After increasing the supply of fuel it has to flow through the transparent hose without bubbles.