I don't know what to tell you, those jets seem huge. My 2001 Cat 800 twin was jetted fat rom the factory and it had 430 mains.It must have to do with the Digital fuel management system Doo uses. I'd talk to a Doo dealer, you wouldn't want to lean it out too much and burn it up.
RtkatZL8
2001 ZL800
Delta IIs
Power Breather
MBRP Silencer
RtkatZL8
2001 ZL800
Delta IIs
Power Breather
MBRP Silencer
