Polaris Discussions about Polaris ATVs.

Sportsman 450 mods

Old Mar 28, 2008 | 08:33 PM
  #1  
ScramblerX440's Avatar
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Default Sportsman 450 mods

Hey guys, I have a buddy who has a Sportsman 450, and he loves it, but he has been noticing that it is bogging a bit on some of the steeper hills. He asked me what I would suggest for giving it just a little more power for those times.

I suggested Jetting, K&N filter, possibly Outerwearzing the air box lid, and possibly a pipe if he can find a decent deal.

Any other suggestions? Best brands?

How about clutching? I know that made a huge difference on my Scramblers capabilities.

Thanks for any suggestions.
 
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Old Mar 29, 2008 | 12:50 PM
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caperinmuskoka's Avatar
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Default Sportsman 450 mods

I have two 2006 Sp 450 all stock......You can get the K&N air filter for them..But don't know if that will make any noticable improvement though!!.......Clutching may be the best if your looking for power gains .....I am happy with the power...Caper.......
 
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Old Mar 29, 2008 | 06:28 PM
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SCRAMMYTODD's Avatar
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Default Sportsman 450 mods

For cheap power, clutching is the way to go for sure!!! Then a jet kit, or just cut a few winds out of the spring for the vacuum slide. A pipe won't give a lot of power just more noise. And the air filter might give a little more too. Do it all at one time and it'll be a noticable differance
 
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Old Mar 29, 2008 | 06:46 PM
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Default Sportsman 450 mods

I also have a 07 SP 450, I just test drove a 08 500 Scrambler at the dealer the other day, Wow what a power diff. but the bike just was a bit small for me. So I was like lets see what I can find to make my 450 a bit faster or sumpin, and well this is what I run into with the 450 No one lists it, lol like it just was never made. I wld say a pipe and diff air filter wld help, I wld also like to do a cam upgrade but cant find anything for this quad. I am assuming I cld get a pipe for like the 500 HO and it wld work, but what about cams. I was looking at pipes at this placehttp://www.aaenperformance.com/4S_P1.asp but I just started to shop also...
 
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Old Mar 29, 2008 | 06:49 PM
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Default Sportsman 450 mods

Cld you explain "just cut a few winds out of the spring for the vacuum slide." what this is and what it does. [img]i/expressions/face-icon-small-confused.gif[/img]
 
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Old Mar 29, 2008 | 11:16 PM
  #6  
ScramblerX440's Avatar
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Default Sportsman 450 mods

Alright, I'll definitely suggest the clutch kit as the first step, I just did a quick search and found these:

http://www.denniskirk.com/jsp/...desc&np=0&av=12500001


but for what he's looking for I really don't know the difference or which one he would want.

I'm also unclear on what cutting a few winds out of the spring for the vacuum slide accomplishes?
 
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Old Mar 30, 2008 | 12:39 AM
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Default Sportsman 450 mods

New guy here and I have a 2006 450 Sportsman
I had a Pro-Circuit T-4 exaust System
EPI Clutch Kit # WE414017
and the Carb Re-jetted at the same time
and it did wake it up.

I also had problems finding parts for the 450,
the stock 450 and 500Ho exaust #'s were
the same so I ended up ordering 500Ho exaust
which worked fine except I had to modify the aftermarket
rear bumper because stock aims downwards and
aftermarket comes out the back.

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Old Mar 30, 2008 | 12:46 AM
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caperinmuskoka's Avatar
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Default Sportsman 450 mods

What size wheels are you running on that .....Looks good!!!!!!......Caper...........I better not show the wife that pic..........Her 2006 450 is the same color!!!!!.....LOL......LOL........Caper.........
 
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Old Mar 30, 2008 | 12:47 AM
  #9  
caperinmuskoka's Avatar
Ride like you own it, Not like it's stolen!
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From: Ontario
Default Sportsman 450 mods

Welcome .............by the way...........Are you here to stay or just checking out the Forums?..........Lots of info on here too!!...........Caper..........
 
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Old Mar 30, 2008 | 01:56 AM
  #10  
XD-45's Avatar
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Default Sportsman 450 mods

Came here to read up on the new 400HO
and saw this thread on the 450 and had some
input on what was being discussed.

I am running 26-10-12 Rears, 26-8-12 fronts
ITP Mudlites, also have EPI Springs on the front.

I have been on this site before reading information,
but never saw the forum section.
 
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