How much work to change jets on 600 Fusion?

Hoosier

Well-known member
Thinking about riding the black hills. Would have to change jets on the 600 Fusion. How much work is this? Looks like those carbs are buried in there compared to my last sled. Do you have to pull the carbs out to do this? Is there anything that can be serious messed up by doing this? Just wondering much much work I'm looking at.
 

Skylar

Super Moderator
Staff member
It's not that hard to do, I found that on my buds 06 Switcher 600 it was easiest to pull the carbs up and out, same on my 07 600 RMK. I did have to take off the oil lines that run to the carbs to be able to get the carbs up far enough to gain easy acces to the bottom of the carbs. What year Fusion? On my buds 06 Switch, the BIGGEST pain in the arse is putting the air box back in. I'm not going to lie, or try to discourage you, but it really sucks. Even on my 07 with the design of the head changed, moving the t-stat housing to the side of the head instead of right smack in the middle like the 06, it isn't much fun. If you have any other questions let me know.
 

jprdave

New member
It's not that hard to do, I found that on my buds 06 Switcher 600 it was easiest to pull the carbs up and out, same on my 07 600 RMK. I did have to take off the oil lines that run to the carbs to be able to get the carbs up far enough to gain easy acces to the bottom of the carbs. What year Fusion? On my buds 06 Switch, the BIGGEST pain in the arse is putting the air box back in. I'm not going to lie, or try to discourage you, but it really sucks. Even on my 07 with the design of the head changed, moving the t-stat housing to the side of the head instead of right smack in the middle like the 06, it isn't much fun. If you have any other questions let me know.

I agree, I change my buddies 08 Rmk every year before going west, every time it reminds me why I spent the extra money for EFI.
 

Skylar

Super Moderator
Staff member
I agree, I change my buddies 08 Rmk every year before going west, every time it reminds me why I spent the extra money for EFI.

Funny you should bring that up. My buds 14 year old son was helping me de-altitude the sleds last Saturday. As I was supervising him changing the jets and needle settings on his 02 RMK700, he says, " fuel injection sure would be nice huh?" I said, umm yea. LOL.
 

indy_500

Well-known member
I would never think of swapping jets with the carbs in. Not too hard, and good time to clean carbs. I do not know how your carbs look, but the screws that hold on my float bowl, are brass phillips screws that strip out SUPER EASY so i replaced them with stainless steel hex bolts. LOTS easier.
 

elf

Well-known member
It's not real technically hard but it is a PITA. I also had a 06 600 Switchback and getting the airbox off is easy enough and getting the carbs out to change is relatively easy but getting them back in and the airbox boots sealed up is a %$#%$. One thing I did was take a little bit of oil (good ole sea and snow) and wipe it around the inside of the airbox boot to allow it to slide on the carb easier. One thing to look at while you have them off is check out the rubber boot that connects the carb to the motor. The 06's had a recall on them once for those boots cracking and delaminating. I had mine changed under the recall once and then did it again when I was rejetting for going out west. If they crack and you don't catch it you can lean it out and burn it down.

On some of my older sleds it was so simple. Pull the airbox, pull the drain hose of the bottom of the carb, and change the jet. Pop the airbox back on in a couple minutes. Whole process took less than 15 minutes. Never even had to take them off the sled. Nice!
 

tgun

New member
Get a buddy and some beers...goes even better. I used the oil trick and a extra set of hands and it went pretty easy. Checking those boots is a must. I am on my third pair and at $85/pair it gets old replacing them.
 

Hoosier

Well-known member
Thanks for all the info.

My Fusion 600 is a 2006, although my buddy has an 07 IQ 600 carb which we will have to change also. This will definitely be a job supervised with a couple beers.

I know all about those carb boots. They failed on my sled and it cost me $2,000 to get the sled rebuilt, as some junk got down in the crank. The thing about that still bugs me is the carb boots were "updated" by Polaris rather than being recalled, although it's clearly a catastrophic problem. I know that all sleds have their issues, but the way Polaris handled that has left a very bad taste in my mouth.

Do they have problems with the updated boots also?
 

srt20

Active member
There has been some issues with the updated boots as well. Make sure you keep an eye on them.
 

Hoosier

Well-known member
There has been some issues with the updated boots as well. Make sure you keep an eye on them.

Just makes you wonder what goes on at Polaris. In the edge chassis and before, the 600's were known to be bulletproof. Never heard of these kind of failings which are common now.
 

indy_500

Well-known member
Just makes you wonder what goes on at Polaris. In the edge chassis and before, the 600's were known to be bulletproof. Never heard of these kind of failings which are common now.

edge chassis had a few problems. The bolt on the driveshaft in the chaincase likes to break, and the mechanical seal on the mag side likes to go out leaking coolant ALL OVER. But, typically very reliable sleds. Also was just lookin at an 01 700 doo with low comp. most likely due to the 1 ring pistons probably just tired out after 6700 miles, and the carb boots look slightly cracked but no leaks.
 

jim_golding

New member
I have a 2006 Fusion 600 and doing anything with the carbs is a PITA. I have issues with getting the air box rubber boots to fit around the carbs properly. I have tried the oil or WD-40 method which does help some. This fall I did the same with one other thing which really helped ensure the air box seated right. After you have the air box close to where it is suppoe=se to be, I found if you pull up on the carbs slighting the air box slides on much easier ensuring you don't ahve any air leakage into the carbs making a lean condition.

Last year I found out I had a lean condition when I cracked it up to 80 mph and the detonation light started to flash. I stopped and pulled out the plugs found one of the a little white. When I got home I pulled the air box and one of the rubber boots on the air box was not seated properly casuing the lean condition. I got luck as I am running 400 mains!!
 
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