Make: Johnson. Model: TJ60TLETD. Year: 93. HP: 60. Cyl: 3. Oil injection disconnected; mix own.<br /><br />I've searched the forum archives and could not find a similar problem. Boat has been running fine, but two weeks ago I idled down the canal from the launch fine, but when I got up on plane the engine sounded like it was missing; it was jerking to one side. Shut it down and pulled it out. Ohmed wires- all ok; checked plugs- all clean, gapped .030 and connections ok; good spark on all 3 plugs; Used a timing light which checked OK on #2 and #3, but intermittently indicating 1 and sporadically 2 on #1 plug: it looked like 1,1,2,1,1,1,1,2,1,1,1,2,1,1,1,2,2,1,1,1,1 etc.<br />I found a crimped wire (black/yellow from the kill switch/ignition) behind the mount plate for the coils and power pack, so I cleaned, cut, butt-spliced, & re-dressed but still have the same problem & symptoms. I've replaced fuel/oil twice to ensure it's OK.<br /><br />Using Clymer 2-300HP OB 91-94 manual. Can't find a test wheel #386665, so using muffs for short time (10 secs.).<br /><br />Are there other checks or tests I can do? Am I off base? It seems like the power pack, but before I drop the bucks to replace it, does anyone have any suggestions? Any advice is greatly desired and most appreciated.<br /><br />Thank you in advance for any help or suggestions. This forum is fantastic, and I've already learned a lot!<br /><br />-LB 