i have a 91 z i just bought it runs fine no problems everything with the car is fine just one issue i start it every day even if i dont drive it, the starter just started acting up but its really hard to start the first time you start it and once it starts it smells like it flooded itself and thats without touching the gas. but after you start it the first time it will start all day with no issues it just started this when it got cold out its had new timing belt put on by nissan and the timing has not been advanced please help before i pull my hair out

 

Your injectors are probably leaking. When it sits overnight the pressure leaks off filling the cylinders with fuel.