Advice needed: CFI vs. Carb

[600_RMK_144]

I need some quick advice here on fuel injection vs. carbed. I found the absolute perfect sled I've been searching for at a really good price (2008 RMK 600 w/ 144 - 700 miles). I was planning to go pick it up tomorrow, got the money out of the bank and everything, but just talked to the guy and discovered it is carbed and not CFI (I know, my bad for assuming). Not being super informed on the subject, I was hoping to get the pros/ cons from some experts. Should I hold out for the CFI or would the carbed motor do the trick? I will be riding @ different elevations (Black Hills, Iowa, MN). Thanks, everyone!!!!

 

[polarisrider1]

Cfi

 

[polarisrider1]

Efi

 

[polarisrider1]

whatever it takes.

 

[rakins800]

For the area and elevation changes I would go with CFI as Polarisrider1 has suggested. All the changes you would have to do for a carb model would probably drive you nuts!! And,with a 600 it should be reliable even with CFI..........

 

[Dave_B]

Cfi

 

[whitedust]

You have only 1 elevation set up & that is Black Hills the rest Iowa,MN,MI rest of midwest are all the same & Black Hills would run a little fat so for me carb 600 would be AOK since you are not at very high altitude in Black Hills to even worry about it. If in Rockies CFI would be better. If you spend 90% of riding time in Black Hills then CFI would give you more HP but a weekend or 2 Black Hills carb is fine.

 

[Skylar]

I ran a 2007 carb 600 rmk for 5 years, no issues at all. Once I set the jets and needle position for here and the U.P., the same, I never touched it. As far as taking it out west, change the main jets, change the needle setting, there done. I guess it depends on how many times you are going to head west with it a year, changing them with the stock air box is a pita, if you install SLP's kit for the air box, it is a lot easier.

That being said, it was nice not to worry about anything as far as jets and such when I went to Tog in
March with my 2012 Pro RMK. LOL.

 

[ezra]

I got a carb rmk600 last yr PITA forgot waht a PITA carbs were being a cat guy running efi for 13yrs.
prob would not be so bad if you kept stock pipe but I put on a slp set up and that tightens up temp requierments and elavation requierments. and on a side note the old style rmk like I bought and you are looking at is not as good in the pow as the same M of the same yrs.
also the 600 HO are funky carbs piolet jet main jet and a Starter jet kinda strange when I took it apart the first time did not know what the extra jet was and well still not sure what the starter jet helps.
it is a quick sled with the slp pipe and airbox mod for a 600.
if it was Me and it is I would be looking for and I am a M6/7/8 yr 05/11 or spend the 10g and buy a pro
and with out the air box mod plan on well over 30 min a time fighting that POS air box

 

[ezra]

the other option is Dial a jet with dash mounted control I know a few guys running them on HO and doos with great sucess still have to swap mains from west to MN but not dinnking around with temp and mountian elavation. nothing worse than running a already underpowerd sled extra fat at 10k feet so you dont burn a hole on the way to the parking lot

 

[garyl62]

I asked this same question about 10 threads ago, check out some of the replies there too. I went back to the efi, mainly because thats what I had been running for a long time. I don't go out west so the set up didn't matter to me, but back on the other thread there was also some replies about temperature changes and how you can easily have a 30 degree swing in a day, and 50 over a few days. Not sure how much that will effect the carb but I want to ride, not work on my sled and adjust things any more than I already do.

 

[600_RMK_144]

Cool! Think I have enough to go on now with these responses along with a similar thread from a few weeks ago that was suggested. Thanks everyone!!!

 

[polarisrider1]

ezra on a poo. sweet. Just depends how much your into it. Carbed sleds will be fine if you set them up for where you are riding. done it for years,

 

[ezra]

ezra on a poo. sweet. Just depends how much your into it. Carbed sleds will be fine if you set them up for where you are riding. done it for years,

Yep huge mistake on my part thinking well it is cheep with low mi I need a sled for this trip so what the heck.then trip was canceld for no snow next was canceld for no snow it sat for weeks and I could not help tossing parts/cash at it so was stuck with it. prob just keep it as a back up/buddy dont think it has 700mi on it yet.
the new body cat is the only thing I can get from my contact at AC. so I am looking for a old style M tossed out a few low balls this spring no bits yet but by jul some one will will be sick of looking at 6 to 10g colecting dust.

 

[indy_500]

I would jump all over that thing for being carbed anyday. I'd run away from the CFI imho. Polaris still hasn't figured out this whole injector thing. Every year they change the 600 from 2 to 4 to 2 injectors over and over again. If you don't believe me, you guys who just answered "CFI" because you own a CFI, how many miles were/are on that motor? Now skylar how many miles were on your carbed RMK? Like 8000 offtrail miles correct? How long does it take to change main jets? Like 10 minutes.

 

[winter_time]

I would jump all over that thing for being carbed anyday. I'd run away from the CFI imho. Polaris still hasn't figured out this whole injector thing. Every year they change the 600 from 2 to 4 to 2 injectors over and over again. If you don't believe me, you guys who just answered "CFI" because you own a CFI, how many miles were/are on that motor? Now skylar how many miles were on your carbed RMK? Like 8000 offtrail miles correct? How long does it take to change main jets? Like 10 minutes.

I would go with the carbed as well. In my experience the 600 cfi will not get the same power as the carbed models. The carbed machines are more responsive it seems and they seem to pull harder in my opinion.

 

[ezra]

How long does it take to change main jets? Like 10 minutes.

10 min my ars if you gut the air box extend the fuel lines poss 15 with practace stock 30min at best.
that thing is a beast to get air box on.but I agree with the cfi not being great on those yrs I prob would not hove bought the one I did if it was CFI.
indy you plated with the HO carbs? what the F is that starter jet all about why have a piolet if you have a (starter)jet?

 

[Skylar]

I would jump all over that thing for being carbed anyday. I'd run away from the CFI imho. Polaris still hasn't figured out this whole injector thing. Every year they change the 600 from 2 to 4 to 2 injectors over and over again. If you don't believe me, you guys who just answered "CFI" because you own a CFI, how many miles were/are on that motor? Now skylar how many miles were on your carbed RMK? Like 8000 offtrail miles correct? How long does it take to change main jets? Like 10 minutes.

Almost 8000 miles on it. Changing the jets wasn't what took so long, getting the air box back in there was the problem, until I put the SLP kit in it, then, I could stick my whole hand down in there to make sure the boots were on the carbs properly. There was one time out in da woods where something happened, can't remember what, where I had to pull the air box, and then I could not get that sob back down in there properly. There was one point where I was so pissed I threw the air box about 20 yards away. LMAO, good times. That was before the SLP kit when in it.

 

[winter_time]

Almost 8000 miles on it. Changing the jets wasn't what took so long, getting the air box back in there was the problem, until I put the SLP kit in it, then, I could stick my whole hand down in there to make sure the boots were on the carbs properly. There was one time out in da woods where something happened, can't remember what, where I had to pull the air box, and then I could not get that sob back down in there properly. There was one point where I was so pissed I threw the air box about 20 yards away. LMAO, good times. That was before the SLP kit when in it.

Jets are not to bad to do on that sled I have go one size smaller yet

 

[Hoosier]

Anyone tried the Ataac kit for that poo 600? I will am considering that for my fusion 600 to avoid rejetting