I have a 2001 115 Johnson (2 stroke) recently it stalled suddenly. I have upgraded the fuel filter (which had water and rust) with a new water/gas filter. Now the engine won't get over 4k rpm. It does plane up, but in the past I could get to 5-5500 easy. I've cleaned the plugs. The bilge is empty and I'm not carrying extra weight. It does rev up in idle. No damage to the prop.<br /><br />I have it on a Aquasport Osprey 200 (2003) and it has been running great until just recently.<br /><br />Any ideas?