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How a'm I getting my 2 stroke mix so wrong?

Huskybill

Huskybill

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Mine gets shook on the ride out to wherever I'm going. And I'm a 2.00 gal/the 2.5 gal oil container. Dolmar synth to 100% dead dinos.

Here we go...
I think maybe not mixing the pre mix before we pour if there using a 50:1 mix could be way to lean? I don’t like the 50:1 mix anyway.
 
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holeycow

holeycow

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Mixing two stroke to the same bottle of oil to 2.3 gallons of gas is fool proof. I always mix the two stroke in the morning when I’m fresh, my mind is clear. With saws that cost $1,000 I don’t make mistakes I can’t afford too. I take it very serious.

We have a big job this fall coming up. Probable mixing 5+ gallons of mix or more.
I remember the days when 4 saws on a crew of 5 (one guy was the "packer") went through two five gallon cans of gas in a day. Every saw was full at the beginning of day before even dipping in to those cans. Some days there wasn't enough gas to finish building the helipad at the end of the day..

Saws burned more gas then, and guys did way more cutting too.
 
Philbert

Philbert

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View attachment 839461 View attachment 839462
The is the mixing bottle I use. The oil says on it semi synthetic don't know if that makes a difference?
I may get some premix stuff.
Thanks for the help
Danny,

Hard to read the markings on that container in the photo. If you have some type of graduated measuring cup, (e.g. for cooking) you can try filling each part with water and seeing if it makes sense. Might be calibrated for something else?

Again, 40:1 = 1,000 ml gas : 25 ml mix oil

Philbert
 
CacaoBoy

CacaoBoy

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View attachment 839461 View attachment 839462
The is the mixing bottle I use. The oil says on it semi synthetic don't know if that makes a difference?
I may get some premix stuff.
Thanks for the help
That is a strange and confusing mixing bottle. The oil part appears to be marked for 30:1 and 40:1 at the same level.
1593543214209.png
There should be a way to use it to get the correct ratio, but it is not apparent from the photo.
 
CR888

CR888

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I have a new hedge trimmer and it says ratio 40:1. I mixed it up using the bottle provided but the hedge trimmer gets too hot, cuts out and smokes. Made a fresh mix and had another go but the same thing happened again! I can't see how I have the ratio so wrong. How accurate do you have to get the ratio? Because its as close as I'm ever going to get it, looks fine by my eye but obviously Ive got it badly wrong. Any ideas how to fix this or any tips to make a correct mix.
thank you
Lots of presumption in this thread. I don't believe it's your mix that is causing heat issues. It's most likely a lean tune. Now the fact that your unit is NEW it may produce a little more heat until broken in but if it's getting excessively hot richen up your carb settings. Are you keeping those blades well oiled? Every few minutes you should be spraying your blades with some lube. Also when you add more oil the carb runs leaner, and it was likely set for 50:1. You need to properly tune the carb and err on the rich side during break-in. Check your spark arrestor and torch the mesh to burn off carbon, & keep the blades well oiled, they'll be a little stiff and need too break in too. If your gearbox is getting too hot its likely got too much grease in it or not enough.
 
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