A simple solution may be to check fuel flow to the carbs. Fuel filter may need replacing or just bad fuel (water in fuel). Air filter may be dirty. Process of elimination from simple to more complicated.
First you need to find out why it is cutting out - is it electrical or is it fuel for example.
Have you got carbs or Fi?
Could be anything from a bad fuel to bad electrical connection and anything in between. If you could give a bit more details, such as what happens, when, whether it stops completely or its spluttering, etc, the more the better................
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