I have a couple of questions someone may be able to help me with. Firstly can you tell the year of the above motor from the serial \ model number? 0201 673706? Second thing I need to take a look at the impellor, I assume from other outboards I have had the bottom units drops off and away you go, The problem is I dont know how to release the lower unit, I get the couple of bolts off at the lower unit, it drops a few mm, I take it there is something else that needs to be released at the other end of the crank?<br /><br />Thanks dm