engine starts fine wouldn't go into any gear.<br />checked all the easy stuff. Took off the lower unit that was fun. took off the screws and cap for the lower unit . found the lower grommet on the lowest screw on the cap had worked its way into past the cap and was dissolving. There was a small leak coming from this screw hole and small particles in the oil. In the manual it says particles could mean a problem with the gears and a rebuild would be in order. But It may be that this grommet was disolving and the particles were of the rubber kind. I don't have any left to make a judgement. In the manual it states that if fluid levels are not maintained then shifting can be a problem. I could replace the gromets and see if the oil will stay in the lower end and make shifting allowable. I know I need to check the controls as well with ameter. Can I flush oil into the lower end to check for particles. When I emtied the old oil from the lower end ther was no small particles in it other than at the lower screw on the cap. Should I fill the lower unit with the gear oil and see ifmetal is in the lowe r unit 