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Well figured I would post this here just to see if we have any out board Techs or folks familiar with this engine. Here's what I have got. 1995 Yamaha 225TXRT. Carbureted (6 individual) 76 degree V6 First noticed the problem as a surge sensation running at 4000, would get an intermittent burst for 1-2 secs then drop back. Had a little miss stutter I could detect coming up on plane, but otherwise planes easily (226 GW Seafarer). Replaced spark plugs, ran the same. Ran it for about an 1 hour after that. Checked the plugs and number 2 looks new. Here's what's been done. The engine has spark on all six at idle and I have visually verified spark at the spark plugs on all six at cranking speed (old school test with plug in the boot). Checked the ignition coils resistance primary and secondary windings. All OK per spec. Checked the resistance on the spark plug caps and found #2 way out . Replaced the spark plug cap on # 2. Test ride no change. Swapped complete coil assembly between #2 and #4, Still no change, problem does not follow the coil. Still missing with no coloring of the #2 plug. Resistance of Both Charge Coils and each of the 6 poles of the pulser coil are in spec. Using the Yamaha (Electro Specialties) CDI Tester (Black box with the dial, light and High/low switch) The Pulser coil (all six poles), the charge coils, and the CDI outputs to the ignition coils (using the specified load coil) all test in range. All of them tested higher than the minimum specified set point. Spec for CDI output to coil is dial at 75 and switch on high. All 6 cdi outputs would continue to light the light up to a dial setting of 82. Cranking speed with all plugs removed. Same for pulser coil output. Spec is 45 and low switch. All 6 poles will light the light with a dial setting up to 55. Repeated the output tests with the Yamaha CDI tester with engine hot. Same result. Ran boat with Air intake removed and confirmed fueling on #2 with same spray pattern as 4 and 6. Fresh fuel, 90 octane No ethanol Recreational marine fuel, New Racor filter, have never had any fuel starvation problems. Still have even compression 125-130 in all cylinders. Can Pulser Coil check good at cranking speed and be bad at higher Speed?? Pulser coil is over $300.00 don't want be wrong on this. Anyway to check if I'm dropping the pulser for #2 under load?? Don't have a winky blinky (Yamaha Diagnostic Tool YB 6444), but the manual says it works on mine. Is the winky blinky a reliable test? Would you condemn a pulser based on the Winky blinky code? Have I missed, not checked anything obvious that would effect just #2? Thank You in advance for any help, suggestions, Derrek