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+--- Thread: 2007 KTM450sx (/showthread.php?tid=47426)
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2007 KTM450sx - anarchist35 - 02-18-2013
so, im back on the MX bikes...i scooped this 07 ktm450sx for pretty cheap and its very stock, and in good condition. i rode it about 15min after i got it home, and fuel starts leaking out the bottom of the carb. 2 weeks prior, my buddies 06 with very similar carb if not the exact same had a bog issue. his turned out to be a diaphram in the accelerator pump had rotted from sitting up with fuel.
this got me to thinking, should i just burn about $50 and completely go thru my carb since mine seems like it would be a needle seat/float issue. and also,l i though maybe this was cause by the 10% ethanol in our tx fuels and sitting up.
can this be resolved by running straight race gas (100+ octane) or is just a silly issue from sitting up and inevitable from age of the bike.
2007 KTM450sx - BirDMaN420 - 03-02-2013
You sure float isn't just set too high?
2007 KTM450sx - Raider - 03-04-2013
I would check the float height and make sure there isn't any varnish in the seat keeping it from sealing. Modern gas goes bad after a few weeks so it can get pretty nasty
2007 KTM450sx - anarchist35 - 03-14-2013
got it weeks ago....so dumb i wont even mention...lol
2007 KTM450sx - StrictlyStunt - 03-14-2013
Sick bike man. I loved my 450sx... I would just completely rebuild the carb.
2007 KTM450sx - anarchist35 - 03-15-2013
Originally Posted by StrictlyStunt
Sick bike man. I loved my 450sx... I would just completely rebuild the carb.
thanks. 1st race on apr13/14 
2007 KTM450sx - D hawk - 03-15-2013
Originally Posted by anarchist35i did thanks. 1st race on apr13/14
thanks. 1st race on apr13/14 
2007 KTM450sx - KingCrispy - 03-16-2013
Good luck with the race. KTM makes a dope bike. Had 2 of their smokers now.... a 250, sold that to buy the street bike, and now currently got a 125sx. Had no interest in a 125 until I rode this bike, the power is fucking sweet for a 125, so playful. Dont know if I'll own another companys dirtbike again.
2007 KTM450sx - rdecker20 - 07-03-2013
ktm is awesome if you have the $$$. sometimes you can get a good deal
2007 KTM450sx - Jones22 - 07-09-2013
Nice quad