Hiya chaps/chap-esses.. Newbie here.<br />I bought a boat with this engine on, and have no idea of it's history, other than, "She ran ok last time I took her out..." from the previous owner.<br />With contact breakers at 19 thou, ignition timing supposedly spot on, and throttle pickup point set to the book, this engine still sneezes at all power settings, so much so, that once or twice, it sheared the woodruff key on the flywheel. There are no timing marks on the flywheel on this engine (thanks Chrysler!) so I marked TDC for No. 1 Cylinder. I Fitted new contact breakers, and condensers (why dont these things work until you scrape all the muck off the surface?!)<br />I tried running the engine on each cylinder individually, by removing one pluglead, and the other cylinder still sneezed under load.<br />Repeating this for the other cylinder did exactly the same. I can't see any sparks flying around at night. The only ignition thing left, is a pair of new magneto coils(you can't just change the plugleads). I have looked all around the rotating flywheel with a xenon timing light, trying to see if there is an associated spark with the sneeze, and there is no sign of the timing mark anywhere other than where it's supposed to be.<br />Could this be a carb/fuel problem or are there any other silly mistakes I have made please?!!<br />Thanks in advance,<br />Dalex
