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What is the oil to fuel ratio for a 20 hp out board?

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Mate! you did not give us a lot to go on but a very safe ratio is 50/1.This is what 99% of outboards use.Hope this helps

Posted on Aug 06, 2010

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Posted on Jan 02, 2017

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What is the fuel mix for 14 inch chain saw csp3314


it depends on the make but sthil now have a oil that is suitable for all mix ratios up to 50:1
you can start at 20:1 and run the engine
if the exhaust is very smoky , change it to 40:1 and again check the smoke
50: 1 is thinnest oil ration for all engines
The ratio is correct when you can just see smoke when at revs
you can always google and type in--- oil/fuel ratio for ( make ) chainsaw model csp3314---or possible look at the filler cap as the ratio is commonly printed in the plastic cap

Feb 26, 2017 | Garden

1 Answer

How much 2stroke oil do I need for 20 liter if ratio is 50 to 1


with a ratio of 50:1 it equates to 50 gallons of fuel to 1 gallon of oil or 50 litres of fuel to 1 liter of oil
breaking that down --25 liters of fuel to 500 mls of oil
down further -- 5 liters of fuel to 100mls of oil if you are making up 20 liters of fuel then 20 liters of fuel will need 400 mls of oil
as a side note --unless you are a contractor using lots of 2 stroke fuel , it goes off sitting around so 5 liter cans are a better option

Jan 06, 2017 | Garden

1 Answer

Same question but for a Toro 3690


the oil used is 2 stroke oil---any brand ( not engine oil) as it has special additives that make the oil cling to the parts with out blocking the carby jets
next the ratio is normally etched on the fuel cap as 20:1 or the like
fuel can be the lower octane rating fuel but not e-mix fuels
a call to a toro service center or local mower shop will tell you what the ratio is ( could be 50:1 for a 25cc engine)
From experience I would say about 35:1 for a start and watch the oil smoke from the exhaust at rpms
no smoke seen is too light on the oil and smoky is too much oil
the correct ratio will be when you can just see smoke at rpms

Dec 15, 2015 | Toro Garden

1 Answer

What is the mix ratio


2 stroke fuel oil mix ratio is 20:1

100ml of oil in 5L of fuel

Mar 15, 2015 | Garden

1 Answer

What is the gas oil ratio


50:1 fuel to oil ratio. Be sure to use a modern synthetic saw oil and premix in it's own container with fresh fuel. Always shake the container thoroughly each time just before filling the tank to prevent oil starvation. Don't make up more than a gallon at a time unless your business is sawing. Hope this helps!

Dec 21, 2010 | Husqvarna , No.455 Rancher, 20" Gas -...

1 Answer

Husqvarna 20" 359 wont start. Has spark. the gas and oil were mixed and left in a plastic vented can in the hot sun. came back a day later and half the mixture evaported. Could the gas have evaporated and...


You are correct. Too high a fuel to oil ratio will not asallow the engine to run. Try using a fresh mixture of the correct ratio. It may take a lot of pulls on the starter until the old fuel is purged from the carby.

Aug 23, 2010 | Husqvarna Chain Saw 20" Bar

1 Answer

What gas to oil ratio is needed


Oil Mix Ratio:
The following ratios have been recommended for the last 10-15 years.
Dolmar, Echo, Efco, Homelite, Husqvarna, Jonsered, Makita, Oleo-Mac, Red Max, Ryobi, Shindaiwa, Solo, Spear & Jackson, Stihl & Tanaka; all recommend 50:1.
1 gallon of premium fuel to 2.6 ounces of quality 2-cycle oil.
4 liters of premium fuel to 80 milliliters of quality 2-cycle oil.
McCulloch, Poulan & Wen; recommend 40:1.
1 gallon of premium fuel to 3.2 ounces of quality 2-cycle oil.
4 liters of premium fuel to 100 milliliters of quality 2-cycle oil.
Chinese chainsaws recommend 25:1.

If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck.
Lou
Thank You for using FixYa.

Jul 12, 2010 | Poulan Pro Chain Saw 46cc 20"

1 Answer

, No.455 Rancher, 20" Gas - Powered Chainsaw: What is the oil mixture ratio for the Rancher 455...


50: 1; You can download an OM 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; please contact Husqvarna for single digit clarification http://www.husqvarna.com/us/homeowner/support/customer-support/)
15 = week produced – March
00198 = 198th unit Husky produced that week

Oil Mix Ratio:
The following ratios have been recommended for the last 10-15 years and is what Husky suggests for your saw..
Dolmar, Echo, Efco, Homelite, Husqvarna, Jonsered, Makita, Oleo-Mac, Red Max, Ryobi, Shindaiwa, Solo, Spear & Jackson, Stihl & Tanaka; all recommend 50:1.
1 gallon of premium fuel to 2.6 ounces of quality 2-cycle oil.
4 liters of premium fuel to 80 milliliters of quality 2-cycle oil.
McCulloch, Poulan & Wen; recommend 40:1.
1 gallon of premium fuel to 3.2 ounces of quality 2-cycle oil.
4 liters of premium fuel to 100 milliliters of quality 2-cycle oil.
Chinese chainsaws recommend 25:1.

If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck.
Lou
Thank You for using FixYa.

May 10, 2010 | Husqvarna , No.455 Rancher, 20" Gas -...

1 Answer

Want to know what the gas / oil ratio is on a 1973 4 hp mercury motor. s/n 3657708


The fuel ratio is 50 to 1. Fuel/oil.You can go as low as 40 to 1 fuel/oil.40 to 1 is the richer mix.Hope this helps

Oct 05, 2009 | Boating

1 Answer

Need a Manual for HomeLite Leaf Blower Vacuum Model Ut08934B, specifically for fuel mixture ratio.


Most 2 stroke engines.......99% now use 50 to 1 mix in the fuel.
Others are close to this ratio.

Older....over 20 to 30 years old ........that may have had 20 to 1 ....or other ratios run happily on a 50 to 1 ratio using the newer 2 stroke oils.
And......BONUS.......they have increased engine life because of reduced semi burnt oil build up caused by "too much oil".......particularly around the rings on the piston(s) etc.

Aug 31, 2009 | Homelite Garden

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