I was out on the lake the javelin was running perfect , johnson 120v4, when I went back to idle the motor stopped, it ended up being no ignition , I had it repaired at the boat shop , now it won't get on plane, I finally got it to plane out but it would only do 27 mph , when normally it would do 41 mph.. the engine cranks easily and sounds good, but it seems like it boggs , I did not notice the rpm but it did not appear to Rev up high . I would say low rpm. It was fine up until the ignition system died , they changed everything. Including the spark plugs ..