Running saws out of gas

[huskyboy]

Even ran on 50:1 I’ve never seen a saw score ran dry. Maybe I need to “get out more”? Lol

 

[huskyboy]

Maybe if I was milling/stumping on a hot day with my ported 395 I would consider watching the fuel level, idle it down after a cut and maybe choke the saw to shut it off after long cuts (help cool it down) because I am a little ocd. But that’s pretty extreme duty. Probably not necessary?

 

[Al Smith]

Or oil you are using.

Oil thread!!!

90 wt gear lube and aviation gasoline .Double duty ,cut wood and fog for mosquitoes at the same time . I had an old bulldozer like that. D4 Cat,2 gallons of diesel fuel and a quart and half of crankcase oil per hour .Kind of cool it blowed the nicest smoke rings when it idled .

 

[cease232]

It’s happened to me one time. I was milling some wide black walnut with a fresh rebuilt 066. Piston was pristine after my test cuts. First long cut and the fuel line somehow got stuck on itself and the filter was above the level of gas. Saw was hot and then leaned out. Brand new piston was scuffed pretty bad. This was also at a 40:1 ratio.


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[huskyboy]

It’s happened to me one time. I was milling some wide black walnut with a fresh rebuilt 066. Piston was pristine after my test cuts. First long cut and the fuel line somehow got stuck on itself and the filter was above the level of gas. Saw was hot and then leaned out. Brand new piston was scuffed pretty bad. This was also at a 40:1 ratio.


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That’s starving it lean over a long period of time for sure. Milling is hard on a saw to begin with too.

 

[fearofpavement]

I'm not one to say running a saw lean won't score the piston because I know that it can. It's just my contention that if the saw is running properly when the tank is full, running it out of fuel doesn't mean anything other than you have to refill the tank.

 

[Finnrpm]

Running out of gas when milling sounds really bad!!!! Same thing if your saw goes lean during milling cut..........
Either way it's more like killing than milling......

 

[Wood Doctor]

Running out of gas when milling sounds really bad! Same thing if your saw goes lean during a milling cut. Either way it's more like killing than milling.

I have a simple solution when milling with a chain saw: I fill the bar oil tank and the fuel tank right after I complete a cut. Unless that log is a monster, a full tank will usually allow me to complete one slab cut, especially if I'm using a sharp chain.

 

[mdavlee]

I’ve had several that won’t cut over 5’ in length on 24-36” wide hardwood without a mid cut refuel

 

[merc_man]

I try not to run em out of gas while cutting but it does happen. It happened this morning when my boy was using my saw. Soon as i hear them start to run different i roll off the throttle and shut off.
If i am storing them for the off season i will drain and let idle till it dies. Any of my saws i have had apart all look fine so i dont think it really harms them.

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[malk315]

Hey Mason -- we run em out all the time and don't have any probs yet. I'm a fan of stopping the saw as soon as I hear any sign of it running out... which of course can happen during a long cut, but I try to pay attention for it. I'm thinking if worried about it, try and cut for 1/2 or 3/4 tank and then fill up before she runs out when working on one of those 90+ degree hot summer days.

Saws have been running strong on job sites in the cold and dry weather.

See ya.

 

[Brush Ape]

If you own a saw for ten years and don't ever run it dry you are blending in ten year-old gas. You should get some fresh stuff. Why are you blending in the ten year old gas?

 

[isaaccarlson]

I can usually tell when my saws are getting low on fuel. I occasionally run out, but it hasn’t done any damage.

 

[Leafy]

As soon as the saw starts to act low I fill it, just so I don't have to pull the stupid thing 10 times to reprime the line. But running it out any gonna hurt, all mine go too lean to cut wood before they actually run out.

 

[malk315]

As soon as the saw starts to act low I fill it, just so I don't have to pull the stupid thing 10 times to reprime the line. But running it out any gonna hurt, all mine go too lean to cut wood before they actually run out.

When I fill after running out to restart I pull the choke and push back in to set high idle. Start and let it run on high idle for 20 seconds and line is primed and ready for work again. With a high compression saw it can save your hand!


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