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What type of lower unit gear lube for 90hp mercury two stroke outboard?

Anonymous

∙ 14y ago

Updated: 5/9/2025

For a 90hp Mercury two-stroke outboard, you should use a high-quality lower unit gear lube specifically designed for outboard motors. Mercury recommends using their own brand of gear lube, such as Mercury High-Performance Gear Lube or Quicksilver Gear Lube, which offer excellent protection against wear and corrosion. Always check the owner's manual for specific recommendations regarding viscosity and any additional requirements.

AnswerBot

∙ 2mo ago

What else can I help you with?

Is 1997 90HP mercury outboard engine a 2 cycle or 4 stroke?

generally speaking if it has valves its a 4 stroke 4 cycle engine......if it doesnt have valves then it is a two stroke 2 cycle...................

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I have a 1984 90hp Mercury outboard and the fuel mixture is 50:1 which is one pint of 2 cycle motor oil for every 6 gallons of gas.

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A 90hp Mercury outboard, serial number 6114748 is a 1982 year model.

What is the compression of a 90hp mercury?

There are various models of Mercury 90hp engines with different compression ratios. Typically, compression ratios for a 90hp Mercury outboard engine range from 9:1 to 10:1. It's best to consult the specific model's technical specifications for accurate compression ratio information.

What is the weight of a 90hp chrysler outboard?

The approximate weight of a 90hp Chrysler outboard motor is 280 pounds.

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It is a 1965 Model year 90hp

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im pretty sure its 50:1 but i would call a local mercury dealer just to make sure

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Which spark plug for Mercury 90HP outboard?

The 3 cylinder model Mercury 90, uses a NGK BUHW-2, or Champion L78V. The 6 cylinder model, takes a NGK BUHW, or a Champion L76V.

Mercury 90hp 6 cylinder outboard 2 stroke before you take this too water you are going to change the spark plugs is there any oil which requires changing gear oil if so what type thanks?

Changing the plugs and the lower gear oil yearly is best. There are two flat head screw heads on the lower unit, an upper one for filling and a lower one for draining. Be sure to use marine grade lower unit oil not just regular gear oil.

What is the weight of a 90HP force outboard motor?

146 Kg's Dry.

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