This motor on my son-in-laws boat is the same as mine on my Silverline. Problem is, his seems to be running on two cylinders and low on power and at times the third cylinder seems to kick in and it takes off, then kicks out again with the loss of power. I have the book and the peak reading multimeter...what should I expect to find wrong? Could it be the pack, a coil, fouled plug or? Your experience will be helpful diagnosing the problem.<br />Thanks a lot,
