There is an excessive amount of black stains coming from the aft section of the cowling around the "tell-tale". This condition seems to be getting worse as time goes on. Also note that initially the alarm horn would sound a high frequency "chirping" sound (about 3 times per second) at low speed. I thought that might be a defective alarm horn since all else seemed to be fine. I actally got in the habit of removing the ground wire from the horn whenever I would be trolling! The last time out however, the alarm sounded continuously after running near WOT for about five mins. The alarm would sound whenever the key was on regardless if the engine was running or not. Removing the ground wire from the horn made no difference!!?? Finally removed the tan wire and that quieted the horn. Also note that the engine would run rough when the alarm would sound. Wonder if the problem could be related to a fuel pressure problem, overheat problem, or some combination??
