change your thermostat
What is the weight of a 90 blue band mercury
A 90 hp Mercury, serial number 4849632, is a 1978 year model outboard.
137 kg ??
A 90 hp Mercury outboard, serial number OG242239, would be a 1995 year model.
The 1999 model, 90 hp Mercury outboard requires an NGK BUHW-2 spark plug, standard plug wires are acceptable.
A 90 hp Mercury outboard, serial number OD067645, would be a 1991 year model.
50 to 1 ratio
No
In order to answer this question, the year model of the 90 hp in question, would be required. The range for 2 stroke, 90 Merc's is 265 - 305 lbs., depending on the particular model.
Mercury 1984 6 cylinder L6 what type & size of starting battery is required
Current Mercury 2 Stroke 90 HP motors use NGK BUZHW-2 plugs. This is a resistor plug to reduce static interference in the radio. The non-resistor (Lower cost option) is NGK BUHW-2. The difference is about $2/plug hp