Nirvana TOP 80, Assembly And Maintenance Manual

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last update 23.10.2012
In this case is very dangerous to keep it on, it is better shutting off
and let cooling, OR, AT LEAST SLOW DOWN BELOW 5000 RPM
before applying more power.

A loss of power may occur because a mixture too lean, following a
wrong carburettor setting or dirty in the filter, do check for such
possibilities before restarting the engine

In the case of overheating it is advisable to check the head screws to
verify the seal of the motor head, see locking torques. Usually a loss
of seal can be perceived by dull strokes at starting or by oil leakage,
once the air conveyer is removed.
NEVER LET A RUNNING ENGINE ALONE ON THE GROUND
PREPARE the starting on the ground only with starter in start in start position
(the engine can’t turn fast)
After the first explosion of the engine open the choke and start the engine
again ONLY AFTER YOU PUT IT ON YOUR SHOULDERS.
It is the only way you have to control the thrust generated by the propeller.