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Hello! I have a 1973 20hp mercury. I took apart my pull rope assembly, and can't seem to remember how it goes back together, or how the things works. All the parts are still here, but i may need to order the tab-washer that holds the bolt sprung.<br />I can't get the claws that catch the...
(sorry about the other post)<br />Well hello folks!!<br /><br /> My old starter rope broke on me, i took the assembly apart, and can't get it back together right again. all the parts are still here.<br /><br /> I have the a wave washer, 2 flat washers and a what seems to be like a pie pan...
Hello again, I am making a few tune up adjustments, what and where can I get something cheap that will give me a clock on my rpm's, thanks again for your help
Hello again!!!!<br /><br />To remind everybody i have a 1973 20hp Mercury Model 200. Now i finally got the motorto idle right and she runs great on high end, with a little hesitation at 1/4 to wide open.<br /> <br /> Anyway, i was thinking some time in the next few months that i want to convert...
Hello all I have a 1973 Mercury 20hp. Found some spare parts, but don't know year of motor. All I have is motor serial #: <br /> 3066413.<br /><br /> Any info is helpfull, <br /> <br /><br /> thanks in advance rcobb
Hello again, 1973 merc 200 20 hp<br /><br /> Just rebuilt carb and changed out foam float to a plastic float. Started up motor but she is still coughing at idle. Adjusted idle mix 2 turns out and fiddled with it but no major difference.<br /><br /> At idle she coughing then spits...
Hello again, well I am running the gamut with this motor. <br /><br /> Hx. 73 merc 200 20 hp. Replaced lower crank bearing ,seals and rings. Rebuilt carb and just took it apart to clean it. #1 plug stays wet, have switched plugs same problem. Running rough at low rpms and sputters as...
Hello again, Started breakin last night with 1973 merc 200 20hp in tank and let her run at idle for an hour. Cooling perfectly and idled fine and checked compression with an increase of 15 psi using a ratio of 25-1. Pulled plugs and they were super wet. Carb when hot, adjusted to two turns out...
Hello again, well honed the cyclinders put in new rings and bearings/ seals and put her back together . She started the second pull but I now notice my pee hole water temp is really warm. The water pump is fairly new and the stream is fine. Does the dact of new rings and honed cyclinders in...
Hello again, 1973 merc 200 20 hp. Initially if you remember - I had a ball bearing blow out in the crankcase, I noticed there was what appeared to be a chipped away section on the lip where the oil seal sets within the crankcase, I took for granted that the bearing had did this damage.<br /><br...
Okay, could not find a ball hone as someone had said, but then another said the ball hone rounded the ports to easily.<br /><br />Another said just get a 3 stoned 220 grit dingleberry and run it up and down for a minute in each cyclinder. Oh, and another said to keep lubrication flowing why...
Intalled new rings, lower crankcase bearing and oil seal, compression on both cylinders at 60. Boo-hooooo <br /><br />did I loose a seal on the crankcasing???
1973 merc 200 20hp thunderbuilt ignition.<br /><br />Carb was just rebuilt prior to breaking engine down for new bearings.<br /><br />Problem, Engine starts about third pull and runs what seems long enough to eat gas then it starves and motor kicks back and even once backfired. Gas bulb never...
Just found out that there is maybe a gallon of water under the floor board of my boat. Now I know that I can drill holes to get the water out, but how long does it need to dry out for? It has not been leaking for a long time, just in the past 2-3 weeks.. Any input will be helpful. <br />...
Well, didn't get a good seal around the spark plugs with the new water cover gasket installed and water came out of plug holes while running,<br /><br />ofcourse engine sputtered and choked, do I need to pour some alcohol into cylinder to get rid of the water, I figured the piston on down stroke...
Hello again, finally got merc 200 20hp 1973 thunderbold ignition back together with new seals and lower crank bearing. If you recall my trigger had a split in it?? and unfortunately I took the flywheel off in three sections. So---, here i go again-fun, fun,fun.<br /><br />So, my manual is near...
My torwue wrench only reads ft. lbs and the manual speaks of in. pounds. So, if manual calls for 100 inch pounds how many ft pounds is that??<br />Do you simply divide it by a factor of 12??
Hello, having trouble locating a straight ring compressor locally, is there an "Old Times Way" or another trick to getting the rings compressed on piston?? Any ideas?? thanks
