Was it Husky said to use more oil in the Australia market when killing?
Thought I heard that
Thought I heard that
40:1, 50:1 does it matter?
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Little Al
Addicted to ArboristSite
In any 2 smoke motor (tuned correctly) more oil within reason =more power the longer the throttle is WO the more oil is better, read the tuning guru's books info etc. the modern trend of minute quantities of oil in the mix is purely an emissions thing & saved a saw redesign to comply, & of course if the saw "croaks" so long as it's out of warranty the manufacturer is rubbing his/her hands sale of new saw/replacement parts paid for by the owner we did a strip check on two saws used for money making logging both more or less equal hours 1 running the stated mix & 1 running 32/1 the 32/1 saw had a much better looking bottom end less wear on cyl, piston.ring etc & was the preferred saw of the 3 fallers we employ personally I would never fire up a saw with a mix north of 40/1 but prefer 32/1 But each to his own as you will get folk swearing by 50 & north to 1mix as being the way to go
MG porting
ArboristSite Guru
They say 50:1 so that way the saw wears out sooner and you have to go buy a new one every year and they make a good chunk of money from you.
MG porting
ArboristSite Guru
I like you're logic that's how I feel although I do run 40:1 most of the time but if I know my saw will be worked hard all day they both will be ran at 32:1.............
I wonder about the accuracy of pumps sometimes at some stations. One I go to near my house gives me about 4.5 gallons non-E when the meter says 5.00. I’ve compared this tank at other stations and when the meter says 5 it’s right there at 5 gallons mark. I imagine however the pump is calibrated it would be biased in favor of the station. So I am not anal about it from the rip-off station and go ahead mix 40:1 based on what the meter showed.
Little Al
Addicted to ArboristSite
I would assume the US is the same as in France the Gov dept checks the amount of fuel delivered to the buyers is correct to the pump reading I'm not sure the calibrated difference allowed between readout & quantity but know it's minute & the general set up is 1gallon on the readout =1gallon delivered & if the pumps are not checked every set time period then that pump is taken out of service until calibrated & certified
Canyon Angler
Addicted to ArboristSite
Huh, that's interesting. FWIW, I've heard that you should buy gasoline in 5-gallon increments (exactly 5 or 10 or 15 or 20 gallons) because the Weights and Measures officials do their checks based on 5 gallons, and although the pump might be off when claiming to dispense 3.8 gallons or 16.1 gallons, it shouldn't be off with multiples of five. But, your experience suggests that this isn't true!
I run 40:1 to 32:1 in my 661 which is used for milling only. That automatic adjuster keeps the saw putting out the same range of power as close as I can tell with my limited experience/sense. The oil seems to not burn thereby modifying the air to fuel ratio as seen by m-tronic sensors. Mine has a ported cylinder and muf-modded which adds another variable that is not standard from the factory as directed by the EPA. The only trouble I have is first start after ten or more days tied with a change in weather conditions that the sensers seem to need a few pulls to readjust to the new conditions. After drop start with the end of the mill on the log, restarts occur with the mill on the ladder support, generally first pull.
Overkill338
M-Tronicly Obsessed
I have a question now. I just mixed up a fresh gallon of 89 no ethanol. I used one of the small bottles of Stihl Ultra to 1 gallon for 50:1. How much more oil do I need to add for 40:1? I'd rather run my saws on the safe side if you guys are sure it won't effect the M-Tronics.
Edit:I think I have it.
2.6 oz in 128oz is 50:1
3.2 oz is 40:1
I added 17 ml more, 30ml per oz.
Edit:I think I have it.
2.6 oz in 128oz is 50:1
3.2 oz is 40:1
I added 17 ml more, 30ml per oz.
MG porting
ArboristSite Guru
Another 1/4 of a bottle or just a tad over a 1/4 of a bottle will get you close.
It’s easier to get .8 gallon for the bottle.....
Overkill338
M-Tronicly Obsessed
I'm close with it. I'm probably closer to 39:1 . Should I be expecting a lot of smoke?
Overkill338
M-Tronicly Obsessed
From now on I will. I'm all for preserving the life of my saws, especially my new 241 and the 461 I'm about to buy. The MS360 needs tore down anyway, but that doesn't mean I want to destroy it. Thanks to whoever started this topic originally. I would have never know 40:1 was safe.
With all the “5gallon” container of oil just get 4 gallons.
If you buy oil by the quart......1/2 the bottle to 5 gallons.
All 40:1 and no eyeballing ounces
Overkill338
M-Tronicly Obsessed
Thanks man!
MG porting
ArboristSite Guru
Not much more smoke.
Little Al
Addicted to ArboristSite
Maybe but more like a puff on first cold start up & none/very small amount when warm & on rev up more than likely you'll not notice
Just curious, how much residual fuel is involved for the first few seconds after cold start? Could the lighter components of fuel be driven off after previous shutdown leaving a more concentrated heavy fraction of the mixture? I ask this because smoking at cold startup has always been there to some degree with my equipment even when ran 50:1.
I know these questions beg one to ask if I might have something better to do with my life, but I feel like crap and is all I can muster for the distraction.
I know these questions beg one to ask if I might have something better to do with my life, but I feel like crap and is all I can muster for the distraction.
