Adjusting Oil Pump
- Thread starter IQmodster
- Start date
How about a little more information:
Is this a new symptom?
How long have you owned the sled?
Was it using a "normal" amount of oil and then started using more?
I have been seeing a few cable housings breaking down at the oil pump. Not many but a few while performing other work.
I personally and respectfully have a different opinion than Kraven on what these motors need for survival when it comes to the oil pump adjustment/usage. Due to the many oil vent in the oil cap issues I have seen and the possible higher than normal engine issues others have seen, I have been running mine and recommending on the sleds I've worked on to go with a 32:1 ratio along with 1/2-3/4 ounce oil per gallon of gas. This puts the overall ratio around 28:1.
So far none of these settings have resulted in ANY plug fouling. If and when they doo or might, I will slowly back down. Right now, oil is cheaper than hard parts.
I've never in my life ran ANY 2 stroke with this high of oil ratio however, certian things are telling me the CFI needs more oil than other engines.
Is this a new symptom?
How long have you owned the sled?
Was it using a "normal" amount of oil and then started using more?
I have been seeing a few cable housings breaking down at the oil pump. Not many but a few while performing other work.
I personally and respectfully have a different opinion than Kraven on what these motors need for survival when it comes to the oil pump adjustment/usage. Due to the many oil vent in the oil cap issues I have seen and the possible higher than normal engine issues others have seen, I have been running mine and recommending on the sleds I've worked on to go with a 32:1 ratio along with 1/2-3/4 ounce oil per gallon of gas. This puts the overall ratio around 28:1.
So far none of these settings have resulted in ANY plug fouling. If and when they doo or might, I will slowly back down. Right now, oil is cheaper than hard parts.
I've never in my life ran ANY 2 stroke with this high of oil ratio however, certian things are telling me the CFI needs more oil than other engines.
2007 DRAGON 700, owned since new, 4400+ miles, no piston scuffing
My bud's 2007 DRAGON 700, 3500+ miles, no piston scuffing
57:1 - 58:1 ratio
With the 800's and the engine problems, it appears that the PMS POLARIS MTNTK kit with the longer skirt and tighter piston to wall clearance is the solution.
I can't see where additional oil is a solution for excessive piston to wall clearance
Respectfully speaking of course........................................................................................................................lol
My bud's 2007 DRAGON 700, 3500+ miles, no piston scuffing
57:1 - 58:1 ratio
With the 800's and the engine problems, it appears that the PMS POLARIS MTNTK kit with the longer skirt and tighter piston to wall clearance is the solution.
I can't see where additional oil is a solution for excessive piston to wall clearance
Respectfully speaking of course........................................................................................................................lol
A
Adobe-Al
Well-known member
IQ- I think if you have not checked your compression and piston(scuff). That is something I would do. When I rebuilt my topend on my 09 700 RMK I turned up my oil pump and add alot of oil to the gas tank. I did this for 2 tanks of gas and never fouled a plug. The only time I fouled a plug was when I lost compression. More details are needed for us to help you. (PCV,New topend, change of brand of plugs/oil, and change in riding conditions, ect)Also here in Colorado when we have low air density(warm air-high elevation) are sleds have a hard time adjusting to it, I have never fouled a plug then. But I could tell it was way rich and would if things stayed the same. Hope this helps-I think something other than to much oil is your problem.
when i first got my assault 0 miles,1 tank of oil to 1 tank of fuel. at 300 took to dealer for fouled egt sensor and pump adjustment. now burning 1 tank of oil to 2 tanks of fuel... 20-25:1? adjusting pump today myself.. at 900 miles. hoping for 50:1, noticed the bubble in the mag side line.. check your tps whille its apart
I figured that last sentence was coming. I was hoping one time someone could have a different opinion than you and you wouldn't have to take it like that. No matter how you word something in type, it always comes off more antagonostic then was ever meant.
As for the, "I have 2 sleds that have run etc".... sure I'm sure they do but this is what everybody really needs to think about: Just becuase there are a couple examples here and there that something works doesn't necessarily mean everyone in that particular group is also or should be having the same success rates. 1 sled here and 2 sleds here of success or failure is way to small of a smaple rate in the grand scheme of CFI motors.
I've rebuilt more 600 and 700 CFI's with less than 2,000 mountain miles than I have 800 CFI's. Does that mean the 6's and 7's suck and the 8's are awesome? Hell no! But what has been common from what I am seeing is the oil usuage is on the low side on all of these. Would extra oil have helped? Maybe, maybe not.
Is it worth trying? I feel it is. What can it hurt?
In talking with some performance 2 stroke leaders, many of whom won't get on here becuase of the useless bantering, feel that the extra oil will help cool the piston and cylinder and many using Suzuki cast pistons feel extra oil solves many of their skirt problems....even on properly set-up, toleranced Skidoo BB's.
I'm hoping MTNTK's is what brings affected 800 owners success. I think one only has to remember how each of the last 4 years of the CFI have transpired to understand it could be a little early to name this the FIX. I hope they are right.
Well Dave...............
Look at it this way.
With all that extra oil you're running in your sled, you can now use your sled in the summertime at outdoor Bar-B-ques to fog the mosquitos away.............
I
IQmodster
New member
Thanks to all of you.
I am back in chitty Minnesota now with less than an inch of snow. I am going to pursue this oil issue next season. It is my wifes sled, she will not run it more than 200 miles next season. But, I would like to fix it during the off season if it is the pump.
Does anyone have the same feeling as I do?.......Polaris is having some big engine issues! I have been a Polaris racer and rider all of my life. I want to trust they will come through all of these poor engine issues, from oil burning to complete engine failures.
I got a ton of crap from the guys riding with me on this trip......using almost as much oil as gas!!! Bad deal
I am going to trust Polaris will get these engine issues fixed....but than again, I owned a 02 800 and never lost the crank. Case to case for sure.
Thanks to everyone whom contributed to this thread.
A special thanks to kraven who helped us fix a 700 dragon while on a trip last week.
I am back in chitty Minnesota now with less than an inch of snow. I am going to pursue this oil issue next season. It is my wifes sled, she will not run it more than 200 miles next season. But, I would like to fix it during the off season if it is the pump.
Does anyone have the same feeling as I do?.......Polaris is having some big engine issues! I have been a Polaris racer and rider all of my life. I want to trust they will come through all of these poor engine issues, from oil burning to complete engine failures.
I got a ton of crap from the guys riding with me on this trip......using almost as much oil as gas!!! Bad deal
I am going to trust Polaris will get these engine issues fixed....but than again, I owned a 02 800 and never lost the crank. Case to case for sure.
Thanks to everyone whom contributed to this thread.
A special thanks to kraven who helped us fix a 700 dragon while on a trip last week.
S
SaskRMK
Active member
My lever catches the chasis when the cable is released. When refreshing my top end this week i plan on giving this a slight file so i can sleep better at night
S
SaskRMK
Active member
Bringing this thread back from the dead!
New throttle cable and i just burnt a half tank of oil to a half tank of fuel. That's not good! I have yet to foul my plugs and the sleds running great. Should i dial the nut forward 2 rotations to achieve a more balanced fuel/oil ratio? I never was good at math
New throttle cable and i just burnt a half tank of oil to a half tank of fuel. That's not good! I have yet to foul my plugs and the sleds running great. Should i dial the nut forward 2 rotations to achieve a more balanced fuel/oil ratio? I never was good at math
Last edited:
T
tahoermk
Member
question on consumption
Hi guys, I have a question for the folks that feel their oil consumption is properly adjusted. On your sled, What portion of a full oil tank is being used per tank of gas? 1/3,1/4, 1/2 of the oil tank? Just trying to get a reference, to compare to what I am burning. We have very little snow and I have no way to accurately check my consumption right now. This thread has me thinking.
thanks in advance for any input!!
Hi guys, I have a question for the folks that feel their oil consumption is properly adjusted. On your sled, What portion of a full oil tank is being used per tank of gas? 1/3,1/4, 1/2 of the oil tank? Just trying to get a reference, to compare to what I am burning. We have very little snow and I have no way to accurately check my consumption right now. This thread has me thinking.
thanks in advance for any input!!
