I took my newly acquired 2004 Yamaha FX HO to the lake today and noticed some problems that hopefully aren't severe. When i took it out by myself it worked great... the pick up was a little slow but it got right up to 45-50 mph. I then went to the beach and picked up a couple of friends to take them for a ride. As i tried to accelerate the waverunner rpm'd up to 10000-11000 but wouldn't go past 15mph. I recently checked the air filter, changed the oil and gapped the plugs. The machine has 97 hours and probably original plugs... could old plugs be causing this or does it sound like something else could be at fault. The impeller does have a few little nicks....how would that affect performance??
Thanks for anyone's input
Thanks for anyone's input