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issues with bogging...

Polaris General Discussion

 
 
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  #1  
Old 01-23-2012
wadgewarrior
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Default issues with bogging...

Ok looking for suggestions. Here is the situation;
1994 xlt and it was idling fine, bog on take off...feathered it to get going then at high speed 75mph no real issues but seems not quite right.
Get into some deep snow and and would loose power down like problems with air flow or fuel. Lift hood and idle for a minute and it would have all power agian.

Changed plugs = not fixed
lift hood = fixed
high speed runs ok

Could there be a short?
Water in carb?

Any ideas?

Also takes about 9 puls with full choke to get going everytime from cold. How do you set the choke?

thanks
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  #2  
Old 01-23-2012
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More history is needed, did you just get this machine or did it just act up? Your almost describing more than one problem with your symptons. Sounds like the jetting is wrong and the secondary clutch isn't prewound?
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  #3  
Old 01-23-2012
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check your secondary buttons?
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  #4  
Old 01-23-2012
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i guess if it was my sled i would go through and clean the carbs, set and sync chokes, set and sync slides. also while it is apart i would verify that parts are stock size.
along with that I would be tempted to empty the tank as dry as possible and put fresh gas in it.
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  #5  
Old 01-23-2012
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I had running problems with my Indy 400 that would fix themselves after the sled sat still for awhile. Turned out there was water in my fuel lines that would freeze when the sled was moving, and thawed when it stopped. Do all the stuff that Madcow said and you'll probably be pleasantly surprised.
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  #6  
Old 01-23-2012
wadgewarrior
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Default Thanks

Have had the machine for about 5 years...never bogged like this before.

As you were reading my crys for help I read Madcows mind and took apart the carbs and cleaned them. looked like water in them. looked up your ways to sync the carbs...all carbs move at the same time and all open wide open. It seemed to idle high...around 3500 and now it is idleing down 2200 or so. I did drain the tank...tomorrow will be test day. I also tested the crank seal with brake clean to see if any leak, and also the carb boots, but it did not rev up or idle any higher.

My next job will be to clean the clutches...and i am sure there are threads and diagrams on that.

Thanks again and will update.
WW
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  #7  
Old 01-25-2012
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UPdate...

Took it for a burn last night ... It idled fine, high at first then warmed up and came down, didnt seem to have the bog like before. getting about 85 out of it which it is about what it was in the past and for an old girl that great! on take off it does not seem very snappy.

How do i make it be responsive on the take off?

At this point i do not want to change anything since last year i know it was better. When I punch it, there is a hesitation and then it goes...but barely spins the track machine moves then takes off and back to normal.

Whos got my solution??

Thanks WW
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  #8  
Old 01-25-2012
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on them older indys i like to get the engagement up in the 4500-5000 rpm area. makes for a lot better take off.
you can put a polaris black secondary spring in the sled and run the stock helix to make it more consistent runner for on and off trail.
for a more aggressive run i would go with the silver blue and a 46-34 or 48-34 helix.
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If the boner police are here I need a lawyer.

in a time of deciet telling the truth is a revolutionary act. george orwell.

aint no body ripin like me. M to the a-d-c-o-w. rock it hard for my fly ladies. I rock it yes in deed. homies still roll with me. money dont change me


nothing goes like 3 holes.

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  #9  
Old 01-25-2012
wadgewarrior
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for the bogging at take off, it seemed that the machine did not do this before. Therefore I think it is something with the carbs. I just cleaned them...

Would there be worn parts?

needle seat, main jet, etc.

or definitely a carb sync issue?

Thanks for the great advice guys.
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  #10  
Old 01-25-2012
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what is the engagement rpm?
are the chokes set correctly?

is the bog when you move the throttle off the resting spot or at clutch engagement?
what if you drop the pilots one size? that might clean up the low speed bog.
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If the boner police are here I need a lawyer.

in a time of deciet telling the truth is a revolutionary act. george orwell.

aint no body ripin like me. M to the a-d-c-o-w. rock it hard for my fly ladies. I rock it yes in deed. homies still roll with me. money dont change me


nothing goes like 3 holes.

BRTECH HOODS
high performance engineering
aaen performance
millennium technologies
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  #11  
Old 02-13-2012
wadgewarrior
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Default Update

Well had it out for a good ride last night. Seems the bog is still there....

Engagement is 4200 ish. I think I have the chokes sync'd properly from your thread. cables not too tight and looked in with a light.

Sitting there idleing and then hammer the throttle and the engine dies out. rpm about 4000 and thats all. Seems to have a bog in deep powder also.

Feather it and/or pump the throttle and takes off with no bog. mid range runs great and has good throttle response.

It is the take off and under 20mph where she bogs out but wont die just blaaaaw at 4000 rpm.

Here's the weird part...open the hood with left hand and crack the throttle and seems like it responds like it should.

I have also notice that the DG can is putting exhaust under the hood. it is not plugged but cracked where it joins the stock exhaust.

Just soooo much to think about. But that is why these forums are here!

Thanks guys.

WW
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  #12  
Old 02-13-2012
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are the floats free moving?

you cleaned carbs very well?
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  #13  
Old 02-13-2012
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Yes they were when cleaned, and took apart scrub with tooth brush and brake clean and removed all the jets also used air.
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  #14  
Old 02-13-2012
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what else has been changed besides the DG can in place of the muffler?
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  #15  
Old 02-14-2012
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Check the choke cable routing, the hood may be putting strain on them and actually opening them slightly which is causing an excessively rich condition at idle.
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  #16  
Old 02-14-2012
wadgewarrior
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Nothing...Totally stock. Just liked the sound of the can. Took the can off last night and it fell apart in my hands. have the muffler back on. Would be like having no can or muffler on...could that be an issue?
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