I have done a compression check on my motor. engine warm and throttle closed have 125lbs.1-5 and 120 #6.is this enough compression for a 2 stroke.?just bought the boat and it only turns around 4800-5000 rpm.after a few minutes it will drop back to 4400.rpm.wide open.pull back throttle a little for a minute and then pin it again and will repeat the same performance.not original engine,could it be hung to low.??.something I read on here.
