650/X-2 Help 650 SC tuning. Pipe, head, Mikuni 44

[truerider411]

Hey guys. Just seeing if I could get some help tuning a super chicken. It’s got every bolt in imaginable
Coffmans pipe
Ada head
Lightened flywheel
Mikuni 44
Pump stuffer
Riva intake manifold

Currently jetting is now
160Main
117.5low
Pop off 15psi
Blowsion tornado flame arrestor

Ski fires up grate idles good. Just doesn’t like to climb over 3-4000rpm. If it does it’s only for a second or two.
Unfortunately my jet kit only goes up to 160 so I may need to get a bigger main ordered up. Plugs look a bit lean but ski runs the same weather I have a 140, 150, or 160 in it.


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[Jr.]

Your jetting already sounds rich? I can dig thru my jetting logs and get you a spec
your real issue is going to be your K650 Ignitor. that was a common issue when they started going bad.
one of the best ones from that time period was Dales Bad Attitude Ignitor. Look to Robert Sands out of Vegas
RAS Racing, He still has a bunch of vintage Kaw stuff. you might get lucky

P