Re: Used motors?
The basic older motors (2 strokes are quite simple) and don't need that much work to maintain them. Read the winterisation threads! Change the lower unit oil, look for water, metal flakes or any particals in the oil. 60 percent of the people on the water barely know where the drain and fill pluges are. Use a light fogging oil to keep outside motor parts from rusting. Check compression of each cylinder ( buy a $50 gage with proper plug threads ) the readings should be close to each other 5 to 10 pounds. Flush the carb bowl with Sea Foam let it sit for 15 minutes and when your remove the bowl drain screw catch the fluid that comes out in a clear glass and look for dark color or particals. If you find any then get the carbs rebuilt. Look for cracked fuel hoses and leaks. I use Marvel Mistory oil in mine 1/2 oz. in each plug hole and turn it over by hand a few turns and replace all plugs. The more you learn about the motor and it's systems the better you have a chance to get home without a tow. You need fuel, compression in the cylinders, and a spark at the right time to make a motor run. Fuel injection is much more sensitive and takes much more knowledge. The newer clean burning engines have much more sensitive fuel passage so you DON"T Want to leave old gas in the system. The ethanol added to gas eats rubber parts quite quickly. If you can find a boating friend to recomend a dealer that services your motor, talk to him see how much he wants to check it over plus winterise. On a small motor probably $150. If it is used in salt water I would recomend it strongly. If you loose a motor on the ocean you are in real trouble, many do not respect the water and its many hazards.. On a pond not so much! Good Luck! sorry I rambled on so.