more than likely 50 to 1
If not using the VRO system, use a ratio of 50:1, roughly one pint of 2 cycle oil, to six gallons of fuel.
The model number J50BELCRM indicates that your Johnson outboard motor was manufactured in 1991. The "B" in the model number typically designates the year of manufacture, with "B" corresponding to 1991 in the Johnson outboard motor coding system.
To determine the age of a Johnson outboard motor with serial number 316513, you can refer to the manufacturer's serial number guide, which usually correlates the serial number to the year of production. Johnson outboard motors typically had a consistent numbering system, and this serial number likely indicates a model from the late 1960s to early 1970s. For a precise year, it’s advisable to consult a vintage outboard motor database or contact a Johnson outboard expert.
The correct mixture would be 50:1, roughly one pint of 2 cycle oil to six gallons of fuel. This is provided the engine is not equipped with, and or using the vro injection system. If your oil injection system is operational simply top off your oil reservoir, no additional oil is required.
The Johnson 6hp outboard motor with the serial number J3736148 was likely manufactured in the early 1980s. Johnson's serial number system indicates that the first letter corresponds to the year, and "J" typically represents 1981. However, to confirm the exact year, it's advisable to consult a detailed Johnson outboard serial number guide or contact a dealer.
The Johnson 15hp outboard motor with the model number AJ15BACDE was produced in 1995. Johnson outboard motors typically have a coding system that includes the year of manufacture within the model number. In this case, the "A" in the model number indicates the production year.
The Johnson outboard model 6R75R with serial number J4168082 is typically from the year 1975. Johnson outboards used a system where the first digit of the serial number often indicated the year of manufacture, and in this case, the "4" in the serial number suggests it was produced in that year.
If not equipped with, or not using the vro injection system, a 50:1 fuel to 2 cycle oil ratio is needed. This is roughly one pint of 2 cycle oil, to six gallons of fuel.
The Johnson outboard motor model number CD-20C with serial number C377158 was manufactured in 1977. Johnson outboards typically use a coding system where the first letter indicates the year, and in this case, 'C' corresponds to 1977.
The Johnson 2HP outboard model J2RCT with serial number E5726223 was likely manufactured in 1995. The "E" in the serial number typically indicates the year of production, and Johnson's coding system can help pinpoint the manufacturing year. Always check with specific manufacturer resources or databases for precise identification.
If not using the oil injection system, a 150hp Mercury outboard would require a 50:1 ratio. This is roughly, one pint of 2 cycle oil, to six gallons of fuel.
The Johnson 6 hp CD-25R outboard motor was produced in 1982. Johnson outboards typically used a model identification system that included the year code as part of the model number. In this case, the "CD" indicates it was manufactured in that year.