What is the fuel-oil ratio on a Sears 7 1/2 HP 2-cycle boat motor?

Question

What is the fuel-oil ratio on a Sears 7 1/2 HP 2-cycle boat motor?

Answer 1

Outboard engines are usually safe at 50:1  some of the newer engines are allowing 100:1

Answer 2

I thought it was 4 to 1, but better check your manual ,or the website, they would have more specific info.  Also, the fuel to oil ratio could be pretty generic for that type of engine, so even if you lost your maunual, find the stats for a similar engine and you should be safe.

Edit: lol, better listen to the below poster, 4:1 and 50:1 is a pretty big difference, and I don't want you to send me your repair bill ; )

Answer 3

Typically engines run at a fuel mixture of 14.7 : 1. 14.7psi, barometric pressure at sea level to one part fuel. Anything other than this the mixture is either to rich or to lean. Some engines do vary from this. It's always best to check your owners manual.

Answer 4

TWO TABLESPOONS TO BE TAKEN TWICE A DAY AFTER MEALS.

Answer 5

Best to call Sears. It depends on what type of oil is recommended. Some two-stroke oils are 50-to-1, others are 20-to-1. Ya gotta get the right one.

Answer 6

I have a sears 7 /1/2 h.p. motor. Mine is an older motor, but I run 1/2 pint oil to 3 gallons of gas, 1 pint to 6 gallons of gas. This may or may not be what the factory recommends, but my motor does O. K. on it.