I done allot of research on this and other boards recently and found others with similar problems and considered what they've listed as possible fixes. I've tried most of the "fixes" with no luck yet.<br /><br />The Problem: port engine starts up and runs fine at idle - advance throttle up to 1500 - no problem - anything past 1500rpm's, the engine starts to rapidly fluctuate (every 2-3 seconds) between 1200rpms and whatever the throttle is advanced. If I shut down the engine, let it sit for a few seconds and fire it back up, I can push her back on plane (over 2200rpms) for appx 30-45 seconds and BAM - back to rapid fluctuations.. <br /><br />Whatever the problem is - is a result from letting her sit for 6 months with ZERO preservative work done prior. She ran fine prior.. <br /><br />I've changed the plugs, filters and cleaned the O2 sensors. I've treated the fuel and replaced the F/W separators. Still the same problem. <br /><br />This issues is isolated to the port motor - the starboard still operates normally - so I'm thinking is something internal to the engine itself. I haven't touch the VST tank (scared to - not sure whats going to pop out of there) But I did unscrew the VST's drain plug and maybe 4-6oz of fuel dribbled out - this was after letting the engine sit for a day.. Primer ball stays somewhat hard but if I press during operation, it has no effect on symptoms. <br /><br />Getting to my last wits.. Any suggestions?? how easy is it to get into the VST unit.<br /><br />Thanks in advance.. 
