1973 Model 200 (20hp) Questions

[john in la]

Model 200 (20 hp) Serial # 3540395

While I know that I will most likely be far ahead by buying a newer motor; bear with me because I love bringing old machines back to life.

1) Trying to figure out the reverse lock system.
From reading on this site I believe it is suppose to lock in netural and reverse but not in forward. I am missing all the parts so I do not see how this happens or what I may be missing.
I know I will need the rod part# 26092 and the lever # 61012 but what part moves the lever when in forward?????????

http://www.mercruiserparts.com/Show...r=130&bdesc=CLAMP+AND+SWIVEL+BRACKET+ASSEMBLY

2) This motor is a manual start with a tiller. While I do not want or need battery start I would like to add a battery charging system for my trolling motor battery. Can this be done??? Please explaine what stator I would have now as compaired to the stator/rectifier setup I need.

3) When I pump up the pressure bulb all the way on the gas tank I "sometimes" see a squirt of gas coming out the front of the carb. I assume this is nothing more than a bad neddle or seat (float setting) in the carb and a rebuild of the carb and attached fuel pump will cure this problem.
It runs well after started and does not flood out so I may just be pumping it to much.

Thanks very much for the help.
John

 

[8075mercury]

Re: 1973 Model 200 (20hp) Questions

Great motors !!!

1. Reverse lock has hooks that swing over the tilt pin. Activated by a short stiff wire that has a ball on each end. One end fits in the socket on the reverse lock hook and the other end fits in a socket in the plastic coupling that connects the lower unit shift shaft with the shift shaft connected to the shift lever on top. This coupling is sort of hidden in the mid section, but you can see it by looking from the bottom. Locks in neutral and reverse. I usually remove these as I want the motor to kick up in neutral. The regret is it also kicks up in reverse.

2. You can get a charging or lighting (I think?) stator for these motors but they are hard to find. Check ebay or Seaway Marine in Washington state.

3. Bulb should pump tight, I think your float needle is hanging up. However, I have run as you describe for years with no problems.

Good luck ! One other thing to watch is the 73 20 hp has an all carbon steel drive shaft (if original) which unfortunately rust and allow water in the lower unit. I suggest watching your lower unit lube regularly and swapping to a stainless steel drive shaft if you can.