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2 stroke engine model GS-MBC30

One part of the manual say 25:1 fule/oil mix and another part of the same manual say 40:1. Which one is correct?

Posted by Anonymous on

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Posted on Jan 02, 2017

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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

Posted on Jan 05, 2009

  • 11 Answers

SOURCE: petrol to oil ratio McCULLOCH 55cc chain saw 2 stroke

25 to 1

Posted on Apr 07, 2009

  • 302 Answers

SOURCE: mixing of two stroke engine

I use 8 oz's.of oil to 3 gallons of gas in mine with good results

Posted on Sep 01, 2009

  • 1 Answer

SOURCE: As dum as they come

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Posted on Mar 08, 2010

SOURCE: Confused a little

A 4 stroke motor does NOT have Oil in the Fuel. There is NO fuel mixture. Just use regular gas. The only place you need oil is in the sump, and regular 20/30 motor oil will be fine.This only needs to be replaced when low on dipstick in crankcase.

Posted on Mar 08, 2010

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1 Answer

Does this engine require mix gas?


Peter
you are too short on details like make model , 2 stroke or 4 stroke
read your user manual or look on the petrol cap as most have the ratio on the bowser emblem
so for an answer, it is most likely a 2 stroke and so-- yes-- it will require a oil/fuel mix in the tank
if you do not know it , start with a ratio of 40:1 ( 40 fuel -1 oil) and only use 2 stroke oil not normal engine oil
run at rpms and there should be a trace of blue smoke
too much smoke cut the oil back to 50:1 and no smoke increase the oil to 30:1
go google and type in user manual for ( make and model ) --and the ratio will be in that print put

Aug 19, 2016 | Garden

2 Answers

What is the correct fuel/oil mixture please as some sites say 25/1 whilst others state 40/1 ( which I believe is correct for the later model RCT2800AD)


I would go with 25/1, as that is always going to be safer than 40/1, too much oil might make a bit more smoke, but the engine will be happier. Too little oil and you risk bearing damage, or even worse, engine seizure.

Jan 05, 2016 | Garden

1 Answer

Is this a 2 or 4 cycle and whatis the correct oil mix?


I guess the first question is what machine is it? Most chainsaws are 2 stroke and need a fuel / oil mix. If the machine is lesst than 5 years old then a mix of 50 parts fuel to 1 part 2 stroke oil is likely to be needed. Older saws often used 25 parts fuel to 1 part oil. From experience I find that 50 to 1 on the newer saws is too little oil and use a 40 to 1 mix to avoid the expense of having to replace pistons and cylinders!

Sep 23, 2015 | Garden

2 Answers

What is the fuel and oil mix ratio


Depends on what the tool motor calls for premix wise.
Premis oil comes in premeasured container based on a 2.5 g or 5gal mix of gasoline to one small container of pre-mix oil.

Have safe fun, wear your eye protection.
Kelly
San Diego, CA

Aug 30, 2014 | Garden

1 Answer

Fuel mix for 25cc trimmer


For two stroke engines of this capacity the ratio of fuel to two stroke oil is (25:1) 25 fuel to 1 (two stroke) oil. Eg 200 ml of two stroke oil to 5 litres of fuel.

Jan 27, 2012 | Craftsman 25cc Gas Line Trimmer

1 Answer

What is the fuel mix for 359


hi there troyandbec

pauly46 here
'
the ratio you should use is 50:1

that is 20 mils of 2 stroke oil for every 1.0 litre of petrol that you mix

so if you want to make 2 litre mix use 40 mils of 2 stroke oil , then add 2 litres of petrol only and give good shake

note use good quality 2 stroke oil , such as sthil or husqvarna oil from your outdoor power shop


but if using general 2 stroke oil from a garage use 40 mils of oil for every 1 litre that you mix
this ratio is 25:1 this mix is on the richer side

cheers hope this helps

May 01, 2011 | Husqvarna Chain Saw Maintenance Kit 357xp ...

2 Answers

I ;have on older homelite super 2 saw. can use the newer oil in this saw with the 50to 1 ratio?


There is no reason why you cannot run any two stroke on todays two stroke oils ( its not like four stroke engines where you use different oils dependent on the age ) however i am not sure i would run it at 50-1 i would be more inclined to run it at 25-1 as it is an old engine.

Jan 29, 2011 | Homelite Garden

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