Hey Charlie. You know I have the exact same Evinrude on my Vagabond and was having the same problem especially with the motor in the lower positions. My trim tab (on the bottom of the cavitaion plate) was set at about 11 o'clock. I moved it toward the right to about 1:30 and it seemed to cure the hard pull to the right. I think it still needs to have a little fine adjustment maybe back to 1 or 1:15. Good luck.
1956 Golden Rocket, 1955 Vagabond, 1957 Crestliner Voyager Hardtop, 1958 Crestliner Jetstreak 15, past boats: 54 Vagabond, 55 Vagabond, 57 Vagabond, 50 FC Flyer, 46 FC Runabout, 57 FC Rocket, 57 Jetstreak
I got thrown from a friend's runabout that was doing the same right-hook thing back in the 70s. Actually, I think his was pulling to the left... One minute I was sitting in the back of the boat, and the next second I was about 5 feet under the water. I remember feeling "I've fallen off my ski". But I didn't remember getting ON a ski! When I came to the surface, the seat beside the one I had been sitting in was floating next to me in the water. Apparently I'd knocked it loose from the floor as I was leaving the boat. Another guy had been thrown from the bow. Fortunately, the driver of the boat had remained in it, and managed to get back to the controls and kill the throttle.
You prolly ought to get that fixed. Maybe it's just Russ yanking your chain.
Well the boat did ok one of the tanks isn't working right and the boat has a bad trait if you let go of the steering wheel the boat will hook right so hard that it will almost throw you out of the boat it's scary as He77 at 35 miles an hour it's a ride you will not forget I will keep you all posted on what is causing it to hook to the right