Thanks for all the great advice.<br />The new boat is coming along greatly. The motor hasn't been started in 7 years. I followed all the advice for tune up and lower unit work posted here. Replaced water pump impeller, gaskets and gear oil.<br />Started today first time no problem. I was amazed at how quickly it fired up. Only thing was that I don't think the earmuffs were good enough. No water from the telltale, but tons from around the muffs. <br />Will blowing out telltale hole from the top down or bottom up be best? Should I check first by running in a trash can rather than with cheap muffs before disassembling lower unit again? <br />As stated in many posts, tons of smoke from Seafoam decarbing and elapsed time since last ran. Should I run the entire tank of Seafoam at idle or greater?<br />At what point should I change spark plugs again?<br />Is there any other additive that can be used on a regular basis to ensure longevity?<br />Thanks in advance. I love this board.