Demonical
ArboristSite Member
Excuse my ignorance: what is an AT saw?
Bye Bye 540xp
- Thread starter Sean80
- Start date
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7sleeper
Addicted to ArboristSite
AutoTune saw. Elecgronic controlled carb with nothing to manually adjust anymore. Same as MTronic. AT from Husqvarna and MT from Stihl.
7
hseII
Addicted to ArboristSite
461 is your Friend.
not for long...
Sean80
ArboristSite Member
I've used the husqvarna pre mixed stuff a few times and it worked great, but I'd be paying a small fortune for fuel. It's just not feasible for me. We have 2 441cm's and they've been pretty bullet proof. One got stolen so it was replaced with a 461 and I definitely prefer the 441cm.
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William Balaska
Addicted to ArboristSite
I would stick with the low speed tuning issue.
LittleLebowski
ArboristSite Guru
We'll see, I'll let you know if it does.
All the mechanics i know or read about. All say corn will seperate from the petro and turn to goo then crust. Aka broken carb. The mechanics say they stay busy changing carbs on seasonal equipment all year long. Generator/fall/winter, lawn mowers early spring, etc etc.
Chris-PA
Where the Wild Things Are
I've used nothing but E10 for years. I rarely drain it before letting the saw sit (only if it will be a long time), but I dump it into the lawn mower if it's more than a few months old. I have no significant issues other than vapor lock problems. To be clear I think ethanol in fuel is dumb, but in my experience it's not a big problem.
That sound's great !! I will keep this in my brain. Thank you.
LittleLebowski
ArboristSite Guru
Perhaps..
CentaurG2
Addicted to ArboristSite
Mechanics talk like they never sold a carb kit or fuel line prior to the introduction of ETOH fuel. I have been running E10 since it came out and used to do the 1 month mix dump, run dry and all that other crap. One year I forgot to drain a trimmer and it sat all fall and winter with a tank of fuel. I expected to see parfait separation and gallons of water. Nope, the fuel I poured out of the trimmer looked and smelled better than the new stuff I put back in. So I gave up on the whole E10 killer fuel mix deal. Its your equipment and you can do what you want but to blame all problems on E10 is nutz. Note both my 562xp and 550xp have only been run on 50:1 premium E10 mix. No problems.
My experience is the same.
albert
Addicted to ArboristSite
Around here if mix sits more than a month or so color starts changing from blue to green /brown. Straight fuel goes from clear to gold/brown. After 4 to 6 months, most will not start and have fuel that is cloudy or milky. If humid lots of water. The public transportation co. I work for has thousands if pieces with small engines. E10 is a major problem. Nothing can sit with fuel in them more than a few months. Problems range from no start from degraded/water logged fuel to corroded carb jets and passages. Steel float bowls badly rusted and pitted, jelly, hard crystals pink powder found in carb bowls. I do not leave fuel in anything more than a month if I can help it.
Sean80
ArboristSite Member
Update. Well it's been 2 weeks and my saws are still at the dealer. The 540 needs a new fuel tank and my 562 is being looked at. I know the dealer has been in contact with husky tech, but haven't heard anything else. Work still needs to be done so I bought a new 201tc. I put 4 tanks of fuel through it today and wow what a difference. It was stinking hot today too and that saw didn't hiccup once. It runs just as strong as the 540 but the best part is when you want it to start... you pull the cord once and it runs!!! Thank god I don't have to deal with that bs anymore.
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jr27236
Addicted to ArboristSite
That sounds really extreme. I didn't look at you tag to see where you are located, but maybe the tanks at you job are filthy and filled with water as well? I personally have never seen gas E10 turn like that and I let this (because it's all they sell here) sit in all my machines and they do start up next season minus all the ailments your company is having. Don't get me wrong I will pour out and use in the tractor or something because I know what it does to full lines and diaphragms.
albert
Addicted to ArboristSite
I have experienced it at home also with top tier fuels. For example, I left fresh fuel in my blower in December, when I went to use it at the end of march and it was cloudy, dumped it and refueled with new mix and the primer was gunked up, finally freed up.
Chris-PA
Where the Wild Things Are
Yup. Other than vapor lock it gives me no issues. I use only E10 from the local station and I don't do much special other than dumping it after a couple of months, especially if it's been very humid. And I never let my cans sit outside.
jr27236
Addicted to ArboristSite
Same here, unfortunately we have no choice here but E10. I'm definitely not promoting it ,don't get me wrong I am full aware of the havoc it has caused on hoses and gaskets and so forth. But as long as you know it's limits of shelf life, you should be fine. But I never seen it turn foggy or milky and the only time I've seen a primer bulb gunk up, is when it leaks off and the oil is left behind.
