550 fan clutching

[spencer]

Need a little input, I bought my wife a 2009 550 fan a few years back. I have owned other Fan;s in the past, what I remember was a lot more power from the older sleds.

We ride from 3 to 6 thousand feet, when I pulled the clutch weights I found 10-60's installed and my main jets are 210's

Any recomendations on what we should be running ?

 

[volcano buster]

No input on the clutching.

We had a lady in our group with a 2005 550 RMK. On a club run I had to try and get her sled up a hill and was not impressed with the little power that it puts out. I had thought about buying one for my kids, but after that run I bought a 440 SKS liquid.

I'm not sure, but you might need to gear it down a bit then target the clutching.

 

[spencer]

No input on the clutching.

We had a lady in our group with a 2005 550 RMK. On a club run I had to try and get her sled up a hill and was not impressed with the little power that it puts out. I had thought about buying one for my kids, but after that run I bought a 440 SKS liquid.

I'm not sure, but you might need to gear it down a bit then target the clutching.

The reason I bought this sled was a friend has a 2003 550, not sure how it was set up but it was a screaming machine with no Mods.

Bought this at the snow show new 2 years ago from a dealer I did not know, not his fault i did not understand how important set up is. If I ever buy another new one I will make sure I buy it from a dealer locally and well known.

How do you gear it down ?

 

[550iq]

Check your jetting chart in the manuals and adjust the mains to fit the altitude and temperature you ride in, that may spark it up a bit. To change gears, remove the exhaust system then the chaincase cover to expose the gears and chain. A smaller top gear/larger bottom gear will free up the engine and clutches a bit with a top speed sacrifice. Remember the fanner's power will drop off when rpm's increase past the peak, say 7,000rpm. You have a 65hp engine at best, maybe 30hp at altitude. To be ultimately happy you will have to limit your field of view to the 550's perspective.

 

[Mark's RMK]

550 Fan

We have an 02. I have a 136" track on it. We use 10-58's out west with the std sprockets which are 19:39. We usually ride quite a bit higher than you. Our clutching chart shows 10-60 for your altitude. did you get the owners supplement with the sled? You can download them on the Polaris site with Manuals.

http://www.polarisindustries.com/Us...A59FF%7d&NRCACHEHINT=Guest&UserSource=MANUALS

You could easily pick up a 41T lower sprocket as many RMK's use them. The other item you could tweak would be the helix on the secondary. We use a 54-38.46ER. You could check with Team and get a recomendation to use a different angle to let the motor rev easier.

 

[spencer]

We have an 02. I have a 136" track on it. We use 10-58's out west with the std sprockets which are 19:39. We usually ride quite a bit higher than you. Our clutching chart shows 10-60 for your altitude. did you get the owners supplement with the sled? You can download them on the Polaris site with Manuals.

http://www.polarisindustries.com/Us...A59FF%7d&NRCACHEHINT=Guest&UserSource=MANUALS

You could easily pick up a 41T lower sprocket as many RMK's use them. The other item you could tweak would be the helix on the secondary. We use a 54-38.46ER. You could check with Team and get a recomendation to use a different angle to let the motor rev easier.

So many options and not difficult to implement, guess I will pull the cain case cover and see whats inside.

 

[550iq]

There are gearing charts available in the manuals, divide your bottom gear tooth count by your top gear tooth count for the ratio (x:1). There are lots of ratio options. Sooner or later different chain lengths may come into play - note the # of "links". Note too, when you've cussed yourself blue dealing with the perposterous stock exhaust cannister, send off few hundred bucks to SLP and get their Ultra Quiet cannister for a 09 800cfi engine and install it. The 09 550 and 800cfi engine shared exhaust cannisters. The SLP unit is almost 1/2 the size and weight, is just as quiet, and sheds heat way better (you can even access all the springs). I have over 4k miles on my 550 with the SLP can. Sorry I cannot help more, up here there is not much reason to get the fanner up above 3,000 ft so the stock set-up works well.

 

[spencer]

There are gearing charts available in the manuals, divide your bottom gear tooth count by your top gear tooth count for the ratio (x:1). There are lots of ratio options. Sooner or later different chain lengths may come into play - note the # of "links". Note too, when you've cussed yourself blue dealing with the perposterous stock exhaust cannister, send off few hundred bucks to SLP and get their Ultra Quiet cannister for a 09 800cfi engine and install it. The 09 550 and 800cfi engine shared exhaust cannisters. The SLP unit is almost 1/2 the size and weight, is just as quiet, and sheds heat way better (you can even access all the springs). I have over 4k miles on my 550 with the SLP can. Sorry I cannot help more, up here there is not much reason to get the fanner up above 3,000 ft so the stock set-up works well.

Our riding around here starts at 2500 ft, don't think I will get to crazy with this little girl as the wife has never complained, because if she did I would buy another new Pro, guess I just want to use her machine to hone my own knowledge.

I have changed the main Jet, be changing the weights to 10 61.5 Per Pierres Polaris Recommendations, and looking at the gears in the chain case.

I will post in December how it all comes out.

Thanks for all your suggestions, Snowest is awesome.