Well, the thinking was that a gas tank has more than 10 gallons and at most your "old gas" would be a half gallon of 40:1. So the end mix would be so diluted that it wouldn't matter.
Four stroke chainsaw at Lowes
- Thread starter OM617YOTA
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GoBigRed
ArboristSite Operative
I see what your saying. That works up to be around 400:1 and probably negligible. Heck, at that ratio it may even have a slight upper cylinder lubricant affect.
I’ve mixed race gas in the past using toluene and a very little bit of two stroke oil. I may try your idea if I ever have to get rid of some old premix.
The good thing is I don’t ever have old gas. It gets used up with the wood cutting, and damn yard work, that I do.
TBS
I have chainsaws and chainsaw accessories.
Still can't get one in California or shipped to California from Lowes or tractor supply but I can order one from AliExpress straight from china right to my door.
If you want one, I'd be happy to buy one and ship it to you, just for the cost of the saw + freight.
It's definitely a novelty though, my battery electric saw cuts at least as well.
It's definitely a novelty though, my battery electric saw cuts at least as well.
But can your battery saw cut 500 feet from your house?
As long as the battery lasts, it'll cut anywhere. One year, that battery saw cut all the wood I burned. Miles from a paved road, much less my house. I had the 034S in the truck just in case, but I have four batteries for the saw, and that was just right to cut enough rounds to fill my truck. For a homeowner saw, I was really surprised with how much work it was able to get done.
Gas saws in the non-wood-burning homeowner niche are dead. For the use the average homeowner will put on a saw, a battery saw is better in just about every way. For the person who heats with wood, there are serious saws available for very little more $$$. New in box CS590's come up for ~$250 fairly frequently, that's only $70 more than this four stroke toy.
Gas saws in the non-wood-burning homeowner niche are dead. For the use the average homeowner will put on a saw, a battery saw is better in just about every way. For the person who heats with wood, there are serious saws available for very little more $$$. New in box CS590's come up for ~$250 fairly frequently, that's only $70 more than this four stroke toy.
I missed the "battery" part of your description. Oops
TBS
I have chainsaws and chainsaw accessories.
They are made by YAT Tool. I'm trying to find out how to get the 79cc one.
http://m.yattool.com/product/93.html
http://m.yattool.com/product/93.html
I wonder how many people are gonna buy them used and accidentally put 2 stroke mix in them...
They'll run fine on two stroke mix. If you haven't retuned it out of the box, they'll probably run better on two stroke mix.
my honda gen has saw gas [35:1] in it
non eth fuel & the oil has conditioner built in
i start it once or twice a yr, just to warm it up
no smell or smoke
starts 1 pull
plug is brown
non eth fuel & the oil has conditioner built in
i start it once or twice a yr, just to warm it up
no smell or smoke
starts 1 pull
plug is brown
Adding oil causes leaner running
A 4 stroke saw sounds fun to me, have not seen one for sale but I have a little Mantis tiller that I inherited with a tiny Honda 4 stroke. That little 4 stroke runs amazing and has torque for days.
As far as fuel, I would not run premix in a 4-stroke, at least not on a regular basis. At some point in the past I was told it would burn up / carbon up the exhaust valves. Based on the condition of valves of engines I've taken apart that were burning a lot of oil due to bad rings etc it seems like it could happen.
Of course I have never tried running premix in a little 4 stroke...
As far as fuel, I would not run premix in a 4-stroke, at least not on a regular basis. At some point in the past I was told it would burn up / carbon up the exhaust valves. Based on the condition of valves of engines I've taken apart that were burning a lot of oil due to bad rings etc it seems like it could happen.
Of course I have never tried running premix in a little 4 stroke...
The oil molecules are still physically larger then the fuel molecules, so yes it does displace fuel, it does also burn, however It's not designed to be a fuel. Having said that I run my old 2 stroke mix in whatever 4 stroke needs gas at the time. Haven't ever had an issue doing so.
FredricRice
San Gabriel Mountains Trailbuilders
I purchases two of these, I'm donating one of them to the City's Parks and Recreation volunteer trail crews after I hold a chainsaw safety and certification series of sessions to ensure that people are safe. The first saw would not start, it does not run however the second saw runs just fine, it started the first pull and has been used in the field exactly once.
The second saw I have checked for spark and made sure that the gap was about .711, and I checked the gas inflow and outflow and that's fine, yet the second saw refuses to run -- and my volunteer group and I have had maybe 40 saws pass through our hands over the past 2 decades, we have worked with a lot of saws, and we get our certifications refreshed by a USFS Hot Shot fire crew every 2 or 3 years depending, so we have a lot of experience with 2-stroke saws.
These new 4-strokes from Senix we are evaluating since California will be banning the sale of 2-stroke next year for State and civilian use. Us Federal volunteers may or may not be expected to replace our 2-strokes with 4-strokes as the 2-strokes die off -- and we put a LOT of wood under our saws every year so we replace them every 4 years or so when even rebuilding the cylinder and carbs gets to be diminishing returns.
So we have mixed feelings / reviews about this saw. The one that runs is too new to know how well it is going to behave in difficult efforts, and the second one will not run at all.
We do find that this 4-stroke is a LOT quieter than the Stihl 2 strokes that we use, and we have a lot of Stihl in our call-out sheds. Over the coming decades we expect the saws to need to be replaced if we must follow State or civilian rules, we don't know yet if volunteers must follow Federal, yet so far we have mixed feelings about the Senix CS4QL-L3.
That may change. I have contacted the manufacturer's technical people to run through what we have done to diagnose the saw and to request additional suggested checks we might perform before sending it back to the manufacturer. I assume that the saws we purchased were exercised for a few hours before being shipped, then the oil drained from the powerhead before being shipped, so I assume that the manufacturer tested the saws before shipping -- yet upon arrival we find one of them absolutely will not start so we can't be certain that they get tested well or competently before being shipped.
Any way I Googled and found this discussion and thought I would create an account, Bookmark this discussion, and offer my initial evaluation.
We shall see what the manufacturer says, I don't want to crack open the carb and rebuild since it's under warranty for the next two years.
Try spraying some carb cleaner in the non-running saw's carb, see if it'll even cough.
There's zero chance these saws will hold up in your usage. They're homeowner saws, at absolute best.
There's zero chance these saws will hold up in your usage. They're homeowner saws, at absolute best.
I've seen video footage of this saw cutting wood, it's not very impressive. There's a reason 4 stroke chainsaws aren't widely available. Power to weight ratio is terrible. Dolmar developed a 4 stroke saw some years ago but it never went to market that I'm aware of. It could possibly be a good firewood saw but that's about it.
TBS
I have chainsaws and chainsaw accessories.
And if you need to get a part for it you might as well toss it.
Yeah but the 2 cycle ban.....
I mean it is probably better than a battery saw.
I mean it is probably better than a battery saw.
