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I've been building this bike over the last couple of years.
I ride it to work every day, and am refining it as I go.
The old CB360 engine gave up the ghost, fixing it wasn't viable and I wanted more power and better reliablity.
I measured up an XR600 engine a figured I would be able to fit it in.
To say it transformed the bike would be a massive understatement.
I just put on a flat slide carb off a crf450 motocrosser. A Keihin FCR MX 39mm
It's completely transformed the bike.
Soooo much more power. It's wants to lift the front while it's spinning up the rear tyre.
Idles perfect, and has such a nicer throttle action. Really smooth and progressive.
It's a bit rich so more power still hiding with some jetting changes.
The conversion wasn't too difficult. The engine is easier to get in n out than the original, as it's shorter, much narrower, way lighter and roughly the same height.
The main things were a new exhaust, inlet manifold and external oil tank set up. Only one frame crossmember needed to be cut n moved. The lower one at the rear.
I bought a complete running xr600, used what i needed and sold off the rolling frame when done. That way you get all the brackets and small bits n pieces to make the conversion look as factory as possible.
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