HE PARAMOTORES MVL 125 User Manual page 12

USER'S MANUAL MVL ENGINE 2019

Dismantle the spark plug

dry it well

before re-assembling it, let the propeller turn slowly 2/3 times.
THE ENGINE DOES NOT HOLD IDLE SPEED OR HAS AN IRREGULAR
SPEED

Clean and adjust the carburettor.

Check the reed valve petals are closing completely.

Hold the reed up to a light and you should not see any light past
the petal seating area.
THE ENGINE CANNOT REACH MAXIMUM SPEED


Check cable pulling throttle fully open.

Check that there is no dirt in the carburettor or tank-filter nor
restrictions in the fuel pipe, due to too tight curves, or air
bubbles.
Check the spark plug; is it's worn, change it with one of the

same brand and same heat range.
In case the head is dismantled to be decarboned, change both
the head gasket and the cylinder gasket.
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