Hi gents hope you well I got my bike back from mechanic.Carbs cleaned and synchronised,new plugs installed.Restrictor unit installed but when bike stands after a while it struggles too start up and almost runs battery dead until I have too jump it with my car any advice off what it could be.When it's running it runs like a dream but in 6th gear feels like bike breaks down but got full power till up too 5th gear.Many thanks advice will be gladly appreciated

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was it running ok before the restrictors went in?