Re: motor tilts down, but not up
Am signed in, will attempt to respond. Your relay is bad. Can be rebuilt considering the cost of a new one. On dis assembly, oil and push out the studs. There are small O rings on each stud. Once you have it apart you will see the problem. The contact points are nothing more than pressed in tits and dimples in thin copper strips. LIONEL trains do better! The small contact points are burned and pitted. Clean the contact points and reassemble.
One OB mechanic I know substitutes MERCURY or OMC relays for the YAMAHA relay. They all work the same. regards FRED