The Thunderbolt ignition is a 12 volt system.
Serial number 1999327
The correct maker point gap setting on the 1972 model, 20 hp Mercury outboard is .020in.
The in-line 4 cylinder, 50 hp Mercury outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
The serial number for a 1976 Mercury Thunderbolt Ignition 850 outboard motor can typically be found on the engine's mounting bracket or the transom bracket. Each motor has a unique serial number that identifies its manufacturing details and production year. If you need the specific serial number for your outboard, it's best to check the physical motor itself or refer to any documentation you have for it.
Thank you for your reply, the HP is 7.6 Mercury Thunderbolt In order to determine the year model for a Mercury outboard, in addition to the serial number, the engine horsepower is needed as well.
The value of a 1974 Mercury Thunderbolt Ignition 850 85hp outboard motor can vary significantly based on its condition, maintenance history, and demand in the market. Generally, prices for such vintage outboard motors can range from $500 to $2,000. However, factors such as whether it is in working order, originality, and included accessories can influence the final price. For a precise valuation, it would be advisable to check recent sales or consult with a marine equipment dealer.
An 85 hp Mercury outboard, serial number 3858432, would be a 1973 year model.
50:1
i have a 7.5 merc outboard ser.no.7678203 what jear is it vern o.
The Mercury 50 Thunderbolt, which is a model of outboard motor, was first introduced in the late 1950s. Specifically, the 9250049 model number corresponds to a motor from the early 1970s, likely around 1971. Therefore, as of 2023, the age of this particular outboard motor would be approximately 52 years.
In addition to the serial number, the horsepower rating is needed to determine the year model.