DS650 Performance

[Lomax]

Why do you not want to deal with Ron woods? They have always been good to me when it comes to getting DS stuff.
-Will

[tecat-z]

Yfz's don't require a cam change like a trx does. You simply advance the intake, and depanding on the person, the same can be done on the exhaust. The cam profiles are the same as the wr450. Yzf profiles are too aggressive and pipey for the quad. Thats why you dont see anyone use them. They produes way more peak power than the yfz cams, but torque production is way down. And for heavy quads, torque is what gets them rolling and gives the instant power people like.Yfz's also don't require rev boxes, as other brands do. Take off air box lid, use quality exhaust, and mechanically, a gytr hi-comp piston can be installed. It will make good power then. Just be aware of 04-05 crank and rod issues. Early 04's have swingarm breakage problems, but most were fixed under warranty. The problem was corrected quickly. There are many things that can go wrong with any used machine, just take that into account before selling one that you know is solid. Modern 4strokes can really cost HUGE money when a faillure occurs.

[ds6502fast]

well i got the 04 yfz450 a few days ago and i spent 1 hour checking and riding it everything was in great condition so i purchased it. Original owner and no noises. just a smooth clean machine. So far i purchase an alba full exhaust with jet kit and the K&n. Itend to take it easy on my machines and keep good matinence on them so i think i'll be ok.

[viper]

check out www.planetsand.com thay have some really good info on ds 650,s