70:1

[tbeaton]

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.

yup, thats not the first dealer to say that. carl's cycle said that as well.

 

[Leaf27]

It won't hurt anything, I can see it getting more oil in the mid range as well as bottom range, which is fine with me

 

[knifedge]

--The oil pump is progressive. It pumps say 100:1 at idle and 32:1 wide open(if adjusted). More RPM = more oil needed -- which is why the pump is progressive

 

[tbeaton]

--The oil pump is progressive. It pumps say 100:1 at idle and 32:1 wide open(if adjusted). More RPM = more oil needed -- which is why the pump is progressive

correct, but word is that adjusting it only helps at idle and low rpm, so what is the point of doing it if thats the only place it will help? that is why guys are saying to pre-mix, its the only way to increase oil consupmtion throughout the rpm range. yes?

 

[Leaf27]

Reading all the info, the pump is progressive, it will get more oil all the way through the throttle until it hits WOT and then the pump is wide open. Is this right/ or wrong??

 

[tbeaton]

Reading all the info, the pump is progressive, it will get more oil all the way through the throttle until it hits WOT and then the pump is wide open.

so your saying that if i adjust the pump it will get better consumption from start to finish? i have read different things, and at this point i'm not sure.

 

[Leaf27]

so your saying that if i adjust the pump it will get better consumption from start to finish? i have read different things, and at this point i'm not sure.

This is how I am thinking it works, after reading and diciphering the different info.

 

[knifedge]

--You'll use slightly more oil at idle and low rpm and alot more at high rpm under load when the engine really needs it. Still progressive. For example, on a poorly adjusted pump, where it used a certain amount of oil at say 6000rpm, adjust it, now it will use that same amount of oil at 5000 rpm or whatever.

--At least adjust the pump so the marks line up, then calculate where your at(or visa versa) and continue to adjust from there.

--When purging the oil lines of air bubbles, you generally hold the pump arm all the way open till it hits the stop and you can see the bubbles move along in the feed lines.

 

[xc6rider]

But at what rpm is the pump maxxed out?? I havent seen in the pump on one yet, but id think varying rpm will create pump pressure changes, along with volume being pumped. Maybe not...

I want to tear a pump apart to see for myself.

Either way, guys are finding more oil being used with adjustment. It might be only flowing more at idle/midrange, but you can bet on more residual oil in bottom end in all rpm as a result.

 

[Skeld]

Modern KTM 2T dirt bikes are recommended to be pre-mixed at 60:1 I believe...so the 70:1 isn't too far off, especially where there are injectors focusing the oil being used in these motors where it needs to be.

 

[Leaf27]

Stretch it out and try it at 80:1. Save a couple pennies on oil! JK

I will get mine to 32:1. As long as it runs well and the plugs are a little on the rich side, I will be happy and so will the motor

 

[akgiauque]

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

It varies from high 80 on the trails and flats (not sure of exact mileage, never ran it dry) but got 81 miles and added 11.564 gallons at the pump to mid 50's when climbing the hills with powder. We ride from 200 ft to 4500 ft and I am not sure if the richer air makes a difference in my sled. Is it fair to assume that the richer air is accounted for in the fuel-oil-air ratio by the injectors or map? Riding next to a 12 Pro Climb, 12 800 Doo, and two 07 M8's we all use similar fuel on the same rides. I however use about 1/3 less oil than the cats, have not compared the doo.

Today I talked with two dealers (Anchorage) both said leave it alone, one even said "that is what the warranty is for". I will visit with my local dealer (Wasilla) tomorrow and see what the word is from them. Like Matt I do not want to hurt my warranty but I also do not want to be riding a pogo stick mid season next year. I am just under 900 miles and will top 1100 this week with the three days of riding I have planned. At that rate I will hit 1300 -1400 miles by the end of the season. That is allot of lean riding, I will turn it up if they say to if not I will be adding some premix.

 

[PalousePoo]

I turned mine up three turns and the ratio comes out about 55:1. Then two weekends ago a skirt on the mag side cyl broke and went through the bottom of the case. No ideas on why. New shortblock here tomorrow.

 

[diamonddave]

But at what rpm is the pump maxxed out?? I havent seen in the pump on one yet, but id think varying rpm will create pump pressure changes, along with volume being pumped. Maybe not...

I want to tear a pump apart to see for myself.

Either way, guys are finding more oil being used with adjustment. It might be only flowing more at idle/midrange, but you can bet on more residual oil in bottom end in all rpm as a result.

I agree. I know what some of the dealers are saying but I'm not quite sure I am fully buying this yet? Because it seems a small change in adjustment is having a pretty ample effect on volume of oil used.

Is this pump any different than the 800 CFI-4's?

 

[winter brew]

You can bet if they didn't have to meet emission regs they would be running 30:1-ish. Fewer failures, more power and more oil sales. They are only doing it so they can certify and sell sleds. They cannot tell you it's OK to crank up the oil....but if they could, they would.

 

[theultrarider]

I call bs on the pump maxing out on flow. I had my oil pump lever flip over the top on my and stay stuck wide open. Took 4 tanks of fuel before I figured it out. I got almost exactly 1 tank of oil per tank of fuel. That's just shy of 4 qts of oil to about 11 gals of gas. Now, that is rich folks! Plugged up exhaust valves and the seleniod. Point is, I KNOW the pump IS CAPIBLE of that kind of flow.

 

[akgiauque]

3rd dealer today said I was getting better (richer) than most. Told me the setup is perfect.

 

[mountainhorse]

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.

Niko... that information they gave you is incorrect.

 

[mountainhorse]

yup, thats not the first dealer to say that. carl's cycle said that as well.

The dealer cannot tell you to change the pump NOR do this themselves because of EPA certification compliance regs..