Looking at a 93 Pro Line Stalker jet. Took it out for a spin ,had difficulty with steering. Hard to maintain straight course.Each time I corrected it would yaw in the other direction. Is this a jet drive characteristic Smoking very heavy ,owner said he had mixed in too much oil. What is the correct mix,it is a 90 horse Merc. It is nicely set up for fishing,live well and large trolling motor on the bow. Would be ideal for fishing the water along the mangroves . Definately not a big water boat. Could not find a recommended price anywhere. He is asking $1500. Any info appreciated
