J
I noticed that the "prem only" light is on on my 02 700 rmk. Any reasons why? My 2000 600rmk did the same thing but i couldn't figure out why...?
"Prem only" light?
- Thread starter jaysonfreerider
- Start date
The key switch being all the way on adds more advance into the timing which requires better fuel. :face-icon-small-hap
If you back off on the ignition key halfway, the light should go off and the ignition timing gets "retarded" a bit.
D
Which equals more power
If you back off on the ignition key halfway, the light should go off and the ignition timing gets "retarded" a bit.
Less power.
If you run 92 octane just run it in the premium setting, if not don't.
J
Thanks guys.
T
The key switch being all the way on adds more advance into the timing which requires better fuel. :face-icon-small-hap
If you back off on the ignition key halfway, the light should go off and the ignition timing gets "retarded" a bit.
Close but you have that backward. The first click from the off position is the premium setting. 2nd click, or all the way on is regular fuel position. Just didn't want to add to the problem. Yes, when running premium fuel, you can feel the difference between the two setting. We always run the good stuff and make sure the light is lit!!!
J
So in other words, run it on the Prem setting on the key switch if running Premiumm fuel?
T
Yes. Make sure if you HAVE to run regular fuel, to switch the key to the other setting as it will retard the timing a couple of degrees to make sure you don't get any det going on in the motor. They are that close from the factory at lower elevations.
D
If the gas is from some place like a resort it could be from last year and thus lost its octane rating. Best to use reg. Key position to be safe.
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Yup, there's a big difference in power, a lot snappier and an additional roughly 400 RPM on the top end.
No need to run in premium on the trail to the hill, but when you go to make a climb for example it will give you a very noticeable increase.
:beer;
J
Yup, there's a big difference in power, a lot snappier and an additional roughly 400 RPM on the top end.
No need to run in premium on the trail to the hill, but when you go to make a climb for example it will give you a very noticeable increase.
So you would run it in the regular position to the trail?? What is your reasoning behind this??
What I was told a while back is that because the timing is advanced 1 or 2 degrees, the motor will actually run a little hotter, so it is better to run it in regular when you know you wont need the extra power. I don't know if that is actually true or not, but I just went ahead and did it and never had a problem. Also, I just ran regular in my motor pretty much all last season to save $$$, so I didn't use the key more than maybe 6 times all year... but when I did, I could feel the difference big time
:face-icon-small-hap I would NOT recommend running in premium if you do not have premium in the tank, you run the risk of detonation if you do...
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J
Ok I see what you are saying... I thought it might get better fuel milage with it in the premium setting if you have premium in the tank...
I
I've ran mine on prem every mile since my sled was brand new. I just put the "snowmobile" gas in at the pump, not sure how high of octaine this is but i have never had any problems with det. I'm excited to try to run it on reg vs. prem and feel the difference. Since you guys say there is a noticible differentce in the two different modes
Yup, there's a big difference in power, a lot snappier and an additional roughly 400 RPM on the top end.
No need to run in premium on the trail to the hill, but when you go to make a climb for example it will give you a very noticeable increase.
So just a thought here but if it would pull same rpm on on reg selection with fuel would this conclude could use more clutch weight????
I
It would depend on what rpm your pullin with the prem selection on. Cuz thats where you're gettin the power. You want this selection and your peak rpm to be in tune i would guess???
X
My 660 was between 5 and 7 MPH faster on the premium setting vs the regular setting. You definitely can FEEL that difference.
P
just run it on prem only all of the time i never have had any trouble detinating
P
just run it on prem only all of the time i never have had any trouble detinating no matter what i run
P
could a guy just run reg with an octane boost to run the prem switch and if so wich octane boost is the best
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