"Hi I have just got a Evinrude E35elcts 2 stroke can you please tell me the fuel oil mixture as I have no information on the engine"

If my memory is working, a two stroke engine uses oil in the fuel for lubrication. four stroke has oil in a crank case for lubrication.

I found a mixture of sites for the information
one owner of a 1998 25 hp evinrude says that it is a 2 stroke with a fuel mix ratio of 50:1 as 25:1 is a bit smokey
another site says that the recommended octane fuel rating is 87 although it might run better on 91
best advice is to find an evinrude service dealer and get the right information as the later 25 hp units are etec engine which will be 4 strokes

Johnson and Evinrude carbureted 2-stroke outboards since 1964 require a 50:1 fuel to oil mixture (2%) on engines without an automatic oiling system - 6 gallons of gas to 1 pint of outboard oil.

Hi and welcome to FixYa, I am Kelly

First off the engine is designed to operate on unleaded fuel. The manufacturer makes no statements at all about E-10 Fuel. I will tell you from experience that you can use E-10 Fuel but.... should you ever have a warranty claim make sure the entire fuel system is 100% unleaded pre-mixed fuel. Your not going to hurt the unit using E-10 fuel as long as you maintain the proper fuel-oil mixtures. If anything a splash more of 2 stroke oil as in 22 mm / liter vs 20 mm. Or (+) 8 mm per gal.

Manufacturers statemenrts and recommended fuel mixtures below:

Thanks for choosing FixYa,
Kelly

n This product is powered by a 2-stroke engine and

requires pre-mixed petrol and 2-stroke lubricant . Premix

unleaded petrol and 2-stroke engine lubricant in

a clean container approved for petrol.

n This engine is certified to operate on unleaded petrol

intended for automotive use with an octane rating
of 87 ([R + M] / 2) or higher.

1 Litre + 2 0 ml =

2 Litres + 4 0 ml =

3 Litres + 60 ml = 50:1 (2%)

4 Litres + 80 ml =
5 Litres + 100 ml =

The full operators manual is here:
http://www.screwfix.com/sfd/i/cat/pdfs/89/p4763889.pdf

two stroke mowers will have a picture of a oil can on the fuel cap,if it doesn't it is most likely a four stroke.
four stroke mowers will have a fuel cap and a oil cap as well.

2 stroke.Fuel/oil ratio is 50/ 1.50 parts fuel,1 part oil.They are a very good reliable motor.Hope this helps

From you manual:
Two-stroke oil
For great results and performance use HUSQVARNA two--stroke oil, which is specially formulated for our two-stroke engines. Mixture 1:50 (2%). To maximize the life of your trimmer, you may choose to use a high quality synthetic oil formulated for two-stroke engines. Mixture 1:50 (2%). Never use two--stroke oil intended for water-cooled outboard engines, sometimes referred to as outboard oil. Never use oil intended for four-stroke engines.
WARNING! Always ensure there is adequate ventilation when handling fuel.

1 gallon of premium fuel to 2.6 ounces 2-cycle oil. 2.6 ounce pre-measured containers are available at most chainsaw outlets.

You can find your manual here:
HusqvarnaUSA.com
http://www.husqvarna.com/us/homeowner/support/download-manuals/
Enter the 3 digit model number (no XPs, Es, just the numbers)
Serial number decode – useful when downloading IPLs and Manuals
06 1500198
06 = year produced – 2006 (single digit before 2000)
15 = week produced - March
00198 = 198th unit Husky produced that week
HTH
Lou