Motorcycle Spares Warehouse is the place to find hard to get carburettor parts, repair kits, jets, piston kits, parts and accessories for your motorcycle.
I changed the jetting a little on both of these SS.
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If you go and find a needle that works with the wrong main jets, it won.
I have an older slant-body FCR, and it just plain wouldn't run right without the air bleed jet or screw there are two options, one is a fixed-orifice jet, the other is a bullet-shaped needle that offers tunability.
Harley Dean Squirted All Over The Place
My buddy had a similar setup but also had the Fcr, another big step up. Free delivery and free returns on eBay Plus items!. They will limit the strain on the valve train which are known to be a weak link in the DR motors. I just read about a James Dean jet kit for cr that puts more power in the low mid. No complaints, it pulls like a freight train from rpm. Scroll down to bottom of page for other parts.