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February 5th, 2020, 01:59 PM   #11
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Joined: Jul 2016
From: Australia, Beechworth, Vic.

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I Ride: when I can which isn't often enough. FX450, FE570
KTM should be able to check with Austria as to its true capacity with those numbers.

These 450’s are very mild compared to late motocrossers. That can be changed though.

Run a straight through muffler, open up the rad shrouds where it meets the seat and the same section of the seat. Peel back the seat cover along here, remove the ridge and replace the seat cover with staples. What this does is allow the very restrictive airbox to breath. Fit a piggyback fuel controller along with a map switch or fit the required resistor so it selects the more aggressive map. Fit a 570 camshaft. I fitted a used cam for $80. All these mods are relatively cheap and easy to perform. If you want to you can remove the cylinder and get 8thou removed off the barrel base to raise the compression just a little. Your standard fuel will be fine.

All this has been done to my 450. 57.3hp on the dyno.
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February 8th, 2020, 06:03 PM   #12
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From: Carib

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I Ride: 2010 FX 450
Originally Posted by Alan View Post
KTM should be able to check with Austria as to its true capacity with those numbers.

These 450ís are very mild compared to late motocrossers. That can be changed though.

Run a straight through muffler, open up the rad shrouds where it meets the seat and the same section of the seat. Peel back the seat cover along here, remove the ridge and replace the seat cover with staples. What this does is allow the very restrictive airbox to breath. Fit a piggyback fuel controller along with a map switch or fit the required resistor so it selects the more aggressive map. Fit a 570 camshaft. I fitted a used cam for $80. All these mods are relatively cheap and easy to perform. If you want to you can remove the cylinder and get 8thou removed off the barrel base to raise the compression just a little. Your standard fuel will be fine.

All this has been done to my 450. 57.3hp on the dyno.
oooh, thank you1 great insight. As of right now I'm just waiting for my mechanic to go over the bike and make sure its in good shape. Then the mods.

Next question though... what do you do you use for cooling? as from what ive read the bike does seem to run hotter than other brands. it came with what looks like a heatshield for the seat and tank...apparently also using evans waterless, it has the rad fan...but its either not working or not connected properly.
I live in the caribbean...so hot climate...any and all tips welcomed.
Im currently using amsoil 100% synthetic 10w-40 jaso ma/ma2. Ive seen others say they run 15-35 or something. What do you recommend for hot climates?

Thanks again
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February 18th, 2020, 10:46 PM   #13
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I Ride: 2010 FX 450
quick update. I have confirmed it's an FX, and not FE. Currently getting some maintenance stuff: air/oil filters, 10-50 oil, magura blood, kickstand, evans waterless, new forkguards, sealsavers, chain. anything else to look for on the 2010 fx bikes?
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