drain radiator on MC54B 250CC

[nananono]

please send me some instuctions on draining radiator on MC54B 250 cc scooter if you can ? thanks Vern

[pconsolini]

1. Remove radiator fill cap
2. On right side of engine, near the forward bottom, is the water pump (has a hose attached to it). There should be 4 chromed screws holding it on. The lowest one is actually a drain plug (only on with a gasket). Remove that one and coolant should start to drain out. (messier but faster is to just disconnect the hose at the pump)
3. Squeeze the coolant hoses periodically to force out as much of the old coolant as possible
4. Replace/reconnect anything loosened/removed except for the radiator cap.
5. Fill the radiator until the level can be seen in the fill opening.
6. Start the engine and snap the throttle open and closed several times to "burp" out any trapped air. When the level drops ...
7. Repeat 5 and 6 until no more coolant can be added
8. Replace the radiator cap
9. Find the coolant overflow bottle and remove any old coolant (suck out with turkey baster and plastic hose) and refill with fresh coolant.
10. Ride bike for 10-15 minutes and recheck coolant level and add as needed.

BE SURE TO USE A NON-SILICATE TYPE COOLANT! THE ONES CONTAINING SILICATES WILL EAT UP THE WATER PUMP IN SHORT ORDER!

[90GTVert]

The MC54B has the Linhai clone engine and the water pump is on the left side. Otherwise, the directions are very similar. Stan

pconsolini said:

1. Remove radiator fill cap
2. On right side of engine, near the forward bottom, is the water pump (has a hose attached to it). There should be 4 chromed screws holding it on. The lowest one is actually a drain plug (only on with a gasket). Remove that one and coolant should start to drain out. (messier but faster is to just disconnect the hose at the pump)
3. Squeeze the coolant hoses periodically to force out as much of the old coolant as possible
4. Replace/reconnect anything loosened/removed except for the radiator cap.
5. Fill the radiator until the level can be seen in the fill opening.
6. Start the engine and snap the throttle open and closed several times to "burp" out any trapped air. When the level drops ...
7. Repeat 5 and 6 until no more coolant can be added
8. Replace the radiator cap
9. Find the coolant overflow bottle and remove any old coolant (suck out with turkey baster and plastic hose) and refill with fresh coolant.
10. Ride bike for 10-15 minutes and recheck coolant level and add as needed.

BE SURE TO USE A NON-SILICATE TYPE COOLANT! THE ONES CONTAINING SILICATES WILL EAT UP THE WATER PUMP IN SHORT ORDER!

[nananono]

Thank You Vern