Can I run a 40:1 two stroke on 50:1 premix?

Re: Can I run a 40:1 two stroke on 50:1 premix?

PostBy: SMITTY On: Tue Sep 20, 2011 9:32 pm

That was an interesting article. Would have been more interesting if it were actually testing wear. I couldn't care less about carbon buildup or patterns - air temperature & squish clearance will do more to change carbon patterns than oil type or ratio will.

I haven't used enough Sabre to judge if the guy is right about the scuffing ... but I suspect he isn't. By his first statement, he has already formed an opinion about running 100:1, as lots of people have - because it's different - out of the norm (I still get people who are afraid to run Signature Series for 25,000 miles in their vehicles). He even admits to the engine having 54 test hours on it with all those different oils at different temperatures ... and in a couple instances running too lean. I call that test inconclusive as far as wear goes, even though this wasn't a wear test to begin with.

I'll be the first to bitch if any of my engines suffer an oil related failure. As of right now, I couldn't afford to even repair one of them, let alone replace any of them.
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: Can I run a 40:1 two stroke on 50:1 premix?

PostBy: SteveZee On: Wed Sep 28, 2011 3:23 pm

Check out this old beast. Wonder if this meets the health and safety regs :D As my old Pops always said safety third! It's a early 60's Brushking and once it's wound up you can take out a good sides sapling with a whack. The original sticker on the fuel tank says mix a half pint of 30wt non detergent oil with a gallon of gas. It runs just fine on my chainsaw mix though.
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SteveZee
 
Hand Fed Coal Stove: Glenwood Modern Oak 116 & Glenwood 208 C Range

Re: Can I run a 40:1 two stroke on 50:1 premix?

PostBy: AA130FIREMAN On: Wed Sep 28, 2011 3:47 pm

I have an old stihl brush cutter that uses a chainsaw for the engine, and can be taken off to use as a chainsaw once again. It also is a beast, the throttle is a cable that turns and trips the throttle on the saw. I really do like the old (JUNK) over some of the new (inproved :o ) equipment they sell today.
AA130FIREMAN
 
Stove/Furnace Make: axeman anderson
Stove/Furnace Model: 130 anthratube


Re: Can I run a 40:1 two stroke on 50:1 premix?

PostBy: freetown fred On: Wed Sep 28, 2011 3:59 pm

JUNK???? wait a minute, now you're talkin about my whole tool shed. :clap: toothy That's right, I love my clap & toothy smiley's ;)
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Re: Can I run a 40:1 two stroke on 50:1 premix?

PostBy: SteveZee On: Wed Sep 28, 2011 4:12 pm

AA130FIREMAN wrote:I have an old stihl brush cutter that uses a chainsaw for the engine, and can be taken off to use as a chainsaw once again. It also is a beast, the throttle is a cable that turns and trips the throttle on the saw. I really do like the old (JUNK) over some of the new (inproved :o ) equipment they sell today.


Yep, I've seen those old sthil bushjobbers. Did you check out the throttle? It's a bicycle brake lever on the left handgrip. :)
SteveZee
 
Hand Fed Coal Stove: Glenwood Modern Oak 116 & Glenwood 208 C Range

Re: Can I run a 40:1 two stroke on 50:1 premix?

PostBy: 009to090 On: Wed Sep 28, 2011 5:54 pm

AA130FIREMAN wrote:I have an old stihl brush cutter that uses a chainsaw for the engine, and can be taken off to use as a chainsaw once again. It also is a beast, the throttle is a cable that turns and trips the throttle on the saw. I really do like the old (JUNK) over some of the new (inproved :o ) equipment they sell today.

If thats the model that has the slid-carb, it sucks to work on it. The slids wear out, unlike the butterfly flaps used on most 2-cycles.
SteveZee wrote:Did you check out the throttle? It's a bicycle brake lever on the left handgrip.

its true.
009to090
 
Stoker Coal Boiler: EFM 520 HighBoy
Hot Air Coal Stoker Stove: DVC-500 x 2
Coal Size/Type: Anthracite Rice

Re: Can I run a 40:1 two stroke on 50:1 premix?

PostBy: AA130FIREMAN On: Wed Sep 28, 2011 6:53 pm

DVC500 at last wrote:If thats the model that has the slid-carb, it sucks to work on it. The slids wear out, unlike the butterfly flaps used on most 2-cycles.

I can't say, I didn't have it off. My green machine trimmer has a barrel slide, I actually like working on them, easy to lean up the neddle jet. Same with the mikuni and keihn carbs on motorcycles.
AA130FIREMAN
 
Stove/Furnace Make: axeman anderson
Stove/Furnace Model: 130 anthratube