ok i just got an 03 kfx 400 and the guy said the carb needed to be cleaned. anyways i put a new plug in it and tried to get it to run but nothing. its getting spark and has 120 lbs of compression. took the carb apart and seen a thin line of green slim (thinking this is anti-freeze). put the carb back on and no fire. went to drain the oil and it looked like water coming out. it was very thin and smelled like gas. here im thinking needle and seat is letting gas out. is this the reason of my quad not firing?