70:1

[akgiauque]

Bone stock 2012 155 Pro. 600 miles last trip out deep snow, burned a full tank, will know the exact ratio on the am. Figured 11 gallons, used 21 oz ves gold. I get 70:1 ration. Hard riding, time to turn the oiler up a turn or two?

I know it has been beat to death but not over my ride

 

[GREICO1]

Bone stock 2012 155 Pro. 600 miles last trip out deep snow, burned a full tank, will know the exact ratio on the am. Figured 11 gallons, used 21 oz ves gold. I get 70:1 ration. Hard riding, time to turn the oiler up a turn or two?

I know it has been beat to death but not over my ride

Not to poke the bear, but you figured 11 gallons, or you put in exactly 11 gallons? I am not doubting the ratio, or the fact that you need more oil, but kind of a stickler for facts over guesses. Sorry.

 

[Merlin]

I know it has been beat to death but not over my ride

You've taken quite a risk posting that question............One can never be too sure if the "Forum Gestapo" are lurking in the shadows!


If your calculations show 70:1, then I'm fairly confident your oil injection pump calibration marks are way on the low side of being "lined up".............

People have seem to had good luck with adjusting the pump 3 - 4 turns above the calibration marks...........

70:1 is not near enough oil even if the riding was hard IMO...............

 

[Murph]

Bone stock 2012 155 Pro. 600 miles last trip out deep snow, burned a full tank, will know the exact ratio on the am. Figured 11 gallons, used 21 oz ves gold. I get 70:1 ration. Hard riding, time to turn the oiler up a turn or two?

I know it has been beat to death but not over my ride

Your oiler sounds way off. Typically if you are at full throttle most of the day you will burn quite a bit of oil-- even if your oiler is at the stingy side simply because you are at WOT and the oiler is also wide open.

Time to look at your marks and turn the oiler up.

 

[jwentzer]

What ratio is acceptable?

Just curious as to what is typically acceptable. I know everyone's opinion may vary to a slight degree...but in the end what is acceptable?

I am at 40:1. I personally think this is acceptable, but I am looking for opinions. Is 32:1 better or too much?

 

[akgiauque]

You've taken quite a risk posting that question............One can never be too sure if the "Forum Gestapo" are lurking in the shadows!


If your calculations show 70:1, then I'm fairly confident your oil injection pump calibration marks are way on the low side of being "lined up".............

People have seem to had good luck with adjusting the pump 3 - 4 turns above the calibration marks...........

70:1 is not near enough oil even if the riding was hard IMO...............

Thanks for the replies,

Checked the fuel in this morning, 10.6 gallons, puts it at 64:1. Added oil to the tank this morning as well. Put on 80 miles and may put on more tomorrow. I will be adding oil until I get it bumped up.

 

[purepolaris600]

oil

You've taken quite a risk posting that question............One can never be too sure if the "Forum Gestapo" are lurking in the shadows!


If your calculations show 70:1, then I'm fairly confident your oil injection pump calibration marks are way on the low side of being "lined up".............

People have seem to had good luck with adjusting the pump 3 - 4 turns above the calibration marks...........

70:1 is not near enough oil even if the riding was hard IMO...............

the polaris dealer said that is what the pumps are set at 70>1

 

[knifedge]

the polaris dealer said that is what the pumps are set at 70>1

--Maybe so, and Polaris is also backordered on shortblocks also. What does that tell you.

--Turn up the pump to lube the crankshaft

 

[xc6rider]

I would suggest pre-mixing a little as well! As others have...

Rings have been found with flaking/damage around the intake ports, and its only my opinion, but likely from fuel washing away any oil. Atleast, a possibility, and much more so with use of ethanol fuel. Ethanol/alcohol is pretty corrosive. Pre-mixing should help a little.

Gonna run mine set to around 40:1 usage, along with .5-1oz per gallon.

 

[mountainhorse]

For me... it is pretty simple... More oil helps rings to seal better... bearings to last longer... pistons to stick less...

The factory, IMO, is pressed to lean the oil mix out because this helps to comply with the EPA regulations...
In some situations... I believe that this can lead to premature engine failure... but there is no other alternative to running as lean as possible. I'm sure that polaris engineering walks a tightrope with balancing engine life and producing a motor that meets EPA regulations (which allows us to enjoy the power to weight ratio of a 2-stroke sled)

Adding more oil is just NOT an option for the MFG's of two stroke vehicles these days... they can't meet EPA standards if they do.

The older engines ran richer...with basically the same pump... but they did not have todays emissions standards to meet... AND todays motors make more power in a smaller/lighter package which could use more oil.

Todays oil technology is making better oils in terms of lubricity etc, but sometimes you just could use more.

I'll speculate that the factory cant even tell the dealers to turn up the pump or put it in a bulletin because that, IMO, would cancel the EPA cert for that particular motor.

FOR me... 32:1 - 40:1 is more ideal... a bit more expensive for oil...but, you will not have to use, IMO, the more expensive oils....

There is nothing keeping YOU from adding more oil via the pump.

 

[Oregonsledder]

For me... it is pretty simple... More oil helps rings to seal better... bearings to last longer... pistons to stick less...

The factory, IMO, is pressed to lean the oil mix out because this helps to comply with the EPA regulations...
In some situations... I believe that this can lead to premature engine failure... but there is no other alternative to running as lean as possible. I'm sure that polaris engineering walks a tightrope with balancing engine life and producing a motor that meets EPA regulations (which allows us to enjoy the power to weight ratio of a 2-stroke sled)

Adding more oil is just NOT an option for the MFG's of two stroke vehicles these days... they can't meet EPA standards if they do.

The older engines ran richer...with basically the same pump... but they did not have todays emissions standards to meet... AND todays motors make more power in a smaller/lighter package which could use more oil.

Todays oil technology is making better oils in terms of lubricity etc, but sometimes you just could use more.

I'll speculate that the factory cant even tell the dealers to turn up the pump or put it in a bulletin because that, IMO, would cancel the EPA cert for that particular motor.

FOR me... 32:1 - 40:1 is more ideal... a bit more expensive for oil...but, you will not have to use, IMO, the more expensive oils....

There is nothing keeping YOU from adding more oil via the pump.

MH, I completely agree with your assessment on this issue. I have yet to see a well controlled test of consumption under controlled conditions so that there was an absolute finding on the factory set-up spec ratio, and then the ratio under the exact same controlled conditions when the pump is turned up X number of turns. I would like to know if 3 turns will increase the ratio by some factor that can be trusted. I understand the pump is progressive so that it will produce a larger volume as rpms increase, but it seems to me that someone could chart that ratio change over the rpm band.... at stock spec, and then after X turns to increase the flow rate. No small task, I understand.

I keep thinking I will try to do this test, but I just keep adding oil to the tank and ride. If someone was to do a good job of producing this info, it would be a big relief to most of us to know exactly what ratio of oil to fuel our engines were burning.

Going pumpless is not an option, so this info seems to me to be very important.

 

[Merlin]

For me... it is pretty simple... More oil helps rings to seal better... bearings to last longer... pistons to stick less...

The factory, IMO, is pressed to lean the oil mix out because this helps to comply with the EPA regulations...
In some situations... I believe that this can lead to premature engine failure... but there is no other alternative to running as lean as possible. I'm sure that polaris engineering walks a tightrope with balancing engine life and producing a motor that meets EPA regulations (which allows us to enjoy the power to weight ratio of a 2-stroke sled)

Adding more oil is just NOT an option for the MFG's of two stroke vehicles these days... they can't meet EPA standards if they do.

The older engines ran richer...with basically the same pump... but they did not have todays emissions standards to meet... AND todays motors make more power in a smaller/lighter package which could use more oil.

Todays oil technology is making better oils in terms of lubricity etc, but sometimes you just could use more.

I'll speculate that the factory cant even tell the dealers to turn up the pump or put it in a bulletin because that, IMO, would cancel the EPA cert for that particular motor.

FOR me... 32:1 - 40:1 is more ideal... a bit more expensive for oil...but, you will not have to use, IMO, the more expensive oils....

There is nothing keeping YOU from adding more oil via the pump.

No arguement here on any of that with the exception that there are many machines leaving the factory with the oil injection pumps out of adjustment from the "git go"!!! As evidenced by the dozens of posts from those who have found their oil injection pumps "out" as low as 3 - 4 turns on the low side of the calibration marks being lined up...............

Heck, a dealer just posted, not too long ago, those same findings on an engine failure of one of the forum members machine...............

There's no doubt that any engine's longetivity will benifit from addtional lubrication by "turning the pump up" beyond the factory calibration marks but if Polaris can't even manage to send the machines out to their customers with the pumps adjusted to their own specifications(calibration marks lined up), it's obvious that we will be seeing more pre-mature engine failures...............


It frustrates me to hear stories of people who have had an engine failure due to a lack of lubrication where the oil injection pump was found to be out of adjustment only to be told the reason is due to the manufacturer needing to adhere to EPA regulations - B.S.!!!!! In those cases, poor factory Q.C. is the culprit & they(OEM) should be held accountable, end of story.............

Conversely, engine failures due to a lack of lubrication that occur where the oil injection pumps are found to be adjusted properly are something we can all blame on E.P.A. regulations................

 

[akgiauque]

Ran 11 gallons yesterday and ran 21 oz of oil. I was not able to get to the pump yet so I added 10oz to the fuel today. Not a thing wrong with the way it ran.

 

[Merlin]

so I added 10oz to the fuel today. Not a thing wrong with the way it ran.

FYI, adding oil to the fuel will not provide any additional lubrication for the bottom end due to the placement of the injectors...............

Turning the pump up would be my first priority.............

 

[stinglikeabee]

how many miles are you getting on a full tank of fuel, we seen 57 one day and 55 the next, and that was in a foot of fresh, oil was over a pint

 

[2XM3]

32-1 and 1 oz per gallon here, bout 3.5 turns in on the pump. The more oil the better until it starts missing...lol

 

[sledneck_03]

I have to say, my 700 uses a ton of oil........ it was a rental sled. I know the 700 is a little more reliable then the 800s but ive only had a torn bellow in 4400 miles, and not babied miles. So i dont know if the rental company turned the oil up or something but it seems like it uses alot, oils cheap compared to a burnt down motor.

 

[Matte Murder]

I have not turned up my pump or added oil. I am really nervous about turning up my oil pump when I have a 4 year factory warranty. Just seems like and easy out for Polaris. I am going to trade my 12 in for a 13 but I don't want to hand off a problem to anyone. This seems so ABC to me, Polaris should be able to get this right at the factory. I run a 2012 ETEC and 2012 Pro. The ETEC uses 20-30% less gas but about 35% more oil. That is really the wrong side of both of those ratios. Also, more oil is more POWER. From kart racing you would be surprised how much oil is run through those 18,000 RPM kart motors, like richer than 20-1 even with synthetic oils.

 

[Aussie Niko]

Just talked to my dealer and he said said don't touch the pump just add oil to the fuel. Turning up the pump only adds more oil at idle not at WOT.

 

[CO 2.0]

I was over 70:1 as well after a normal day of riding. I turned up the oil pump 5 turns to get the marks to line up. Now running 38:1.