hello. im working on this daewoo gc20s-3 forklift and it will start fine when cold but when warm or hot will take a while to start or will not start for hours after running for 3 min. It seems that I will be the one fixing this problem child after its been neglected for so long. any help would be nice. by the way. would any one know what spark plug this lift uses as they have autolite in there at the moment and would like a more reliable plug. Thank you.