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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
low powered new KX250
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[QUOTE="CJG, post: 664033, member: 26579"] Tristan18au, I have an '03 KX250 also and it is not a top-end screamer. Short of porting I doubt you will be able to get a whole lot more on top. I added an FMF Factory Fatty pipe and PV spacer and a VForce reed cage to mine and it works alot better than stock. The hesitation off idle is gone, the midrange is stronger, and it adds a little on top too. As far as jetting, currently I'm running one size leaner on the pilot and main. But I'm running race gas at 1,500ft(~450m) elev. and ~70%humidity, so these settings may not work for you. Leaning your bike out a bit could help with the hesitation off idle, also, switching to race gas or 50/50 race/pump may help make the bike SLIGHTY "snappier". The VForce helps out on the low-end as does the PV spacer, and the pipe adds a little everywhere. If you prefer more top-end, I've talked to several people who really like the Pro Circuit pipe for more power on top, but some say that they lost a little low-end. Hope this helps a little. [/QUOTE]
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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
low powered new KX250
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