for some time i noticed that my nissian vannet bus has been having slow and delay starting in the morning compared to when i first bought it,I have to either use a power battery to start it in the morning or use Jump start wires to boost the power before the engine can turn for it to start..when i park d bus..it will either start very slowly or nt start at all until you push it.

I am worried because mechanics these days work on guess work....i want advise to know if it is the KICK STARTER is bad or these are symptoms of a burnt Gasket in the bus..because days before this day..the vehicle overheated because the fans were not working and i did not know.

Pls advise me.i am lossin my mind..