i have a evinrude 70hp and it use to run 30 and now it will only run about 15...and how do i check the lower unit oil? and could this be the trouble?<br /><br />thanks David
model 70673D<br />ser j0005631<br /><br />what can you tell me about this engine? <br />i would like to know<br /><br />fuel/oil ratio?<br />year?<br />horses?<br />how too and what to use on lower unit?<br /><br />thanks<br />Magnum 76