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akay khan Posted on Oct 08, 2013

18hp titan outboard 2 stroke with outside tank.its a 25ltr tank.want to know proper mix or if i use 5ltr fuel the proper mix

1 Answer

Hot Headz Marine

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  • Contributor 36 Answers
  • Posted on Oct 14, 2013
Hot Headz Marine
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Joined: Oct 10, 2012
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50 to 1 oil gas mix on 99% of all outboard engines. 1 pint to 6 gallons.
I like Quick Silver oil or Sierra oil. Hope this helps.

3 Related Answers

Anonymous

  • 2 Answers
  • Posted on Jan 05, 2009

SOURCE: what is the correct fuel/oil mix for evinrude 4hp ?

the proper mix is 50 to 1 or 16 oz to every 6 gallons,in my little boat I put 4 quarts in the 48 gal tank and its been running for 22 years,your running way to rich and your plug is probaly fouled,take it out clean it up/dump your fuel and mix it right,thats a great motor you got,I hunted with it for years,oh yeah when you get started run it till all the smoke is gone or you will have carb problems ,if you dont have them all ready,a little carb cleaner wont hurt but get it running first,or all that trash will foul you out,have a great trip bartriley1

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Anonymous

  • 710 Answers
  • Posted on Apr 27, 2009

SOURCE: 40hp 1987 yamaha outboard motor will run for 30-60

Sound like the fuel pump is not keeping up with the engine's demand. Check it out. Good luck. Hope this helps.

Anonymous

  • 3 Answers
  • Posted on May 23, 2009

SOURCE: Fuel mix ratio for 115 hp force outboard engine

50:1 ratio

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TO MIX THE FUELSee Figure 3.? The product is powered by a 2-stroke engine and requires pre-mixing petrol with2-stroke oil. Pre-mix unleaded petrol and 2-stroke engine oil in a clean containerapproved for petrol.? The engine is certified to operate on unleaded petrol intended for automotive usewith an octane rating of 91 ([R+M]/2) or higher.? Do not use any type of pre-mixed petrol/oil from fuel service stations, such asthe pre-mixed petrol/oil intended for use in mopeds, motorcycles, etc. Do not useautomotive oil or 2-stroke outboard oil.? Use only synthetic 2-stroke oil.? Mix 2% of synthetic 2-stroke oil into the petrol. This is a 50:1 ratio
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4-stroke engine doesn't need a petroil mix like a 2-stroke so you can go ahead and fill with straight petrol.

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https://www.google.com/search?q=1957+johnson+outboard+10+hp+fuel+oil+ratio

What is the mix ratio for a Johnson outboard motor?

Any Johnson outboard motor built since 1964 requires a 50/1 fuel ratio. Motors built prior to that date require a 32/1 ratio, with the exception of a few fishing motors built prior to 1955 that use a 16/1 ratio.

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What is the mixing ratio for a Johnson outboard motor? - Mvorganizing.org

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WHATS THE FUEL AND OIL RATIO FOR 25HR 2CYL OUTBOARD MERCURY

need the year of manufacture as some 2 stroke units have oil injection that automatically mixes the oil in the correct ratio for engine rpms otherwise it is 50:1 ( 50 parts fuel to 1 part oil)
oil requirements --certified tc-w3 2 stroke outboard oil ---not ordinary engine oil
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Do I use reg gas or a gas mix?

Matt, If engine is two stroke and not oil injected then yes you must mix 2 stroke oil and fuel. 4 stroke engine have a crank case which is filled to proper level with 4 stroke engine oil. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
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1999 Johnson 70hp 2 stroke outboard how can I disconnect the self mixing oil tank and premix oil and fuel myself?

the self mixing use variable rate which is much better then mixing it yourself. why would you want to change it?
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What is the correct fuel/oil mix for evinrude 4hp ?

the proper mix is 50 to 1 or 16 oz to every 6 gallons,in my little boat I put 4 quarts in the 48 gal tank and its been running for 22 years,your running way to rich and your plug is probaly fouled,take it out clean it up/dump your fuel and mix it right,thats a great motor you got,I hunted with it for years,oh yeah when you get started run it till all the smoke is gone or you will have carb problems ,if you dont have them all ready,a little carb cleaner wont hurt but get it running first,or all that trash will foul you out,have a great trip bartriley1
Jan 04, 2009 • Boating
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Oil

40:1 fuel mix ratio is good for this model. you put gas in the upper tank and 2 stroke oil in lower tank the mix pump will do the mix, if you are not sure the pump is working properly, mix 4 ounces of 2 stroke oil into 1 gallon of gasoline and put the mix in the upper tank, it reach the carburator by gravity
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