Can anyone identify this machine? Ultimately trying to determine gas/oil mix ratio. Not my machine, no desire to damage it. Owner unavailable but said I can use it previously.

 

 

And this is the only "label"?

"ISKY" ?

"041??"?

Some Chinese no-name.

A hard nut to crack.

Either you take it to a local specialist shop to ask or if uncertain use 1:25.

Less damaging than 1:50 for a 1:25 motor?

There is no best/ideal forum for this thread.

Other threads on the trimmers spread over the forums.

 

But I think the DIY housing forum is a better location.

 

Moved.

 

I use 50:1 in my Husqvarna but don't know what model you have there ?

You won't do any damage with a 40:1 mix, just check the spark plug after 30mins and see whether its oiled up or clean....

If unknown I would use 25-30:1, might be a bit smoky but it's not going to damage anything.

 

^ Ah. Two strokes a subject close to my heart. Forget all the four strokes everywhere:-)

 

The type or quality of oil is as important as the mix.

 

If the engine is water cooled or very modern and uses synthetic oil  the ratio should be 50:1. However for air cooled motors the usual ratio is 40:1 For racing it is a lot lower. Old Lambrettas/Vespas used mineral oil at 25:1 

 

As It is not your trimmer and the owner didn't tell you go to a Shell garage if there is one near and buy some Shell Advance (semi-synthetic) in the black can and run it at 30:1. Can't find Shell then use Castrol semi-synthetic.  If it smokes a lot reduce to 40:1 etc. Don't bother looking locally in Thailand for fully synthetic two-stroke oil it is "unobtanium". If local village shop only has mineral oil mix at 25:1.

 

SURGEON GENERAL: It is OK the smoke the opposition, with two-stroke power. 

1 hour ago, VocalNeal said:

^ Ah. Two strokes a subject close to my heart. Forget all the four strokes everywhere:-)

 

The type or quality of oil is as important as the mix.

 

If the engine is water cooled or very modern and uses synthetic oil  the ratio should be 50:1. However for air cooled motors the usual ratio is 40:1 For racing it is a lot lower. Old Lambrettas/Vespas used mineral oil at 25:1 

 

As It is not your trimmer and the owner didn't tell you go to a Shell garage if there is one near and buy some Shell Advance (semi-synthetic) in the black can and run it at 30:1. Can't find Shell then use Castrol semi-synthetic.  If it smokes a lot reduce to 40:1 etc. Don't bother looking locally in Thailand for fully synthetic two-stroke oil it is "unobtanium". If local village shop only has mineral oil mix at 25:1.

 

SURGEON GENERAL: It is OK the smoke the opposition, with two-stroke power. 

He left me the oil as well.

Look on the bottle. If it doesn't say semi-synthetic then safer at 25:1 

 

Have a very close look at the gas cap. Sometimes the ratio is cast into the cap. Example:

 

 

 

Looks exactly like mine ('cept mine's a line cutter) - which is a Chinese brand I bought from ThaiWasadu.  I use 25:1