Warning to Honda Cadet owners

Note to Honda Cadet kart owners:

It has been noticed that if the kart is brought into a warm or hot environment that the fuel can expand in the tank without release of the air due to the non return valve operating.  That could result in fuel expelling through the carburettor fuel pipe.  So it would be advisable to allow for a breather in these circumstances either by taking off the breather pipe to the non return valve or by other means.

But only when not actually racing on the track of course.