I just purchased my first antique outboard. A 1956 Hiawatha 7.5hp Bail-a-matic. I am looking for service and parts manuals for this motor so I can do all the needed servicing. Can anyone point me to where I can get these manuals or even better if anyone has them would you mind sharing please? Also, I just found that the lower unit uses grease instead of oil. Is this because they had issues with the lower unit leaking? I am planning and re-filling with lubriplate 105 as other members have noted to use but, do I need to worry about removing any old grease before filling? Any help is greatly appreciated. Thanks.