Is it starting up right away and then taking a long time on the choke before it will maintain an idle, or is it taking a long time to fire up while cranking? If it is the latter, it is likely that the fuel has drained out of the system while sitting. If this is the case, talk with Craig at Rutting Rhino, as he has some innovations in his fuel delivery kits that help a lot with holding the fuel in the plumbing.I have a 2004 660 rhino .Could someone tell me what jetting to run to keep it from being so cold blooded at start up.
If it starts but you have to use the choke for a while until it warms up you need a larger pilot jet.
It's definitely true that leaner is hotter...I think technically you would want to go to a smaller jet. More fuel generally makes the motor run cooler. If you lean it out the mixture burns hotter.