I just picked up a tractor today a B7100HST-D. Has some minor issues I would like to get fixed. The one high pressure fuel line is leaking coming from the injection pump. The knob for the decompression cable is seized and wont move. Other than that the tractor is pretty sound it's a little rough but I didn't pay much and it came with a mower deck. This is my first Kubota tractor I'm a diesel mechanic by trade on vocational trucks. So what are some things I should do since this tractor is new to me should I just do the normal maintenance items? Also I was wondering if it can be converted over to a water pump the guy I bought it from said it can be. I'll be using the tractor to mow and put in a small food plot for hunting.