2007 Polaris RMK 600 h.o. 144 BOOOOOOOOGGGGIIIINNGGGGG

[Dirtfan0]

2007 Polaris RMK 600 h.o.144 need help with bogging from about 3800 rpms to somewhere around 5800 to 6000 then wow does it fly, but the bogging is terrible and very hard to trail ride I live in North Dakota and have the recommended 400 jets in it for our area. But wondering about the main jets, Bought it from a guy out of Rapid City, SD the dealer had it set up for around 9000 feet. Is there more I need to do????????
Thanks,

Could it be the spark plugs?????

 

[Bull]

my first recommendation would be to limit your post to two forums??? second, you need to know what your setup is.......what mains, what pilots (suspect this may be your problem), what needle position, fuel screw setting? if this was setup for 9000' and you are running in ND you might want to be careful not to burn down. not likely to be the plugs

 

[sldgy]

I think there is an echo on here, no, just a bog.

 

[Dirtfan0]

Sorry, I didn't know I could not post more than two, Just wanted a fix. Was Ski-doo all my life and first time owning something different, So far love the sled, Elavation is 900ft, Fargo N.D. The needle was on the very top notch moved to the 2nd one same result. According to Polaris tech manual it needs 400 jet. What should I run??? Open for suggestions.

 

[Bull]

like i said, you need to get all the info on your setup before someone can give you any help. also, you said the sled was setup for 9000 feet.....if you haven't changed anything but main jets and you are running at 900 feet, yeah it will probably not run right.

 

[Boondock]

I think there is an echo on here, no, just a bog.

lol Good one

 

[Scott]

You're probably not set-up right. Give the whole set-up...

BUT FYI...............Those sleds do have a bog just after engagement, up to about 5500. You won't get it out...

 

[ndsleddealer]

need 380 mains

You should be using around 380 mains here in ND. The Polaris chart is fat here for us. That would be rich with 400's as Mine would not run well either until I jetted it down. Sounds like a combination of mains and fuel screw. Fuel screw turned in till lightly seated and open 1 3/4 turns. Pilots [50]should be the same in ND and high alt on the sled. Try the mains first and check were the fuel screw is set. Needle are #2. Check top of your piston 1st for wash as I am guessing it is washed clean with no wash marks showing.