Engine has new plugs, rebuilt carbs, sounds great. It runs ok when I first start it and it's cold, I can get about 5-10 mins out of it then it starts to get weird. Mortor will sputter, like a cyl is not firing and will just fully shut off at times. After this starts to happen I can get like 30secs to a min out of it before it shuts off again, if i can even get it started. Sometimes the only time it runs is when I have the key on start. <br /><br />When the key is in the on positon I can hear sparks, random sparks. When we had the cap off I turned the key to on and my friend saw a huge spark go around inside the cap. <br /><br />He thinks it's the distrupter, but I think it could be the coil. <br /><br />It's a old inline 6. Anyone have any ideas? it has brand new plugs also. <br /><br />Also a 2 cycle. <br /><br /><br />Nick