hi,<br />have an '82 9.9. have owned the motor for 4 years and never any problems. <br /><br />i took the boat out today, and as i was idling out of the no-wake zone, the motor missed once or twice, then fluctuated in rpm for a little while before smoothing out. i got out of the no wake zone and ran at WOT to where i planned to fish (about 4 miles). no problems at all at WOT. when i got there, i idled around looking at the depth finder (no problems then either) before i remembered that i had left an important tackle box in my car back at the ramp. so back i go at WOT, again no problems. when i slowed down in the no wake zone, right as i got to the exact same spot as before, the motor missed again, just a couple of times and then continued to run fine....<br />fast forward through another trip back out to the fishing spot, then about 2 hours of trolling with no problems.... i'm beginning to think i hit an area of magnetic flux or something at that one spot... then it happens one more time.. just a quick miss and back to normal.<br /><br />so my question is, what could cause this, and how can i troubleshoot.<br /><br />my first instinct was that i got some bad gas or something, or maybe there's a little water in the bottom of my tank.. but could this be the beginnings of a problem with the ignition?<br /><br />thanks for the help<br /><br />matt
<br /><br />If the plugs are old, replace them with ONLY CHAMPION brand of the correct heat range.