I agree with the previous post. Run it. If you are just messing around in the yard or a small neighborhood, it's going to smoke. If you've just come in from a 75 mile ride, and it still seems to be smoking, and you are using a quality oil, then you may have an issue. Still, you are going to have to have a very good idea of how much oil you are using on a per gallon of gasoline used basis. Without that, it's impossible to make an informed decision. Don't just guess. That gets expensive.
'07 Apex RTX w/Pro X suspension conversion, Fox Floats w/resi's, Doo extro drivers, Cobra track, Dual Ryde FX rear clickers, .375 Edge torsion springs, HyGear Dual rate front skid springs, SLP anti-stab kit, Powermadd handguards/mirrors, 2" Rox riser, shimmed Poo skis w/custom (homemade) ski savers, Black chrome W/S, Graphics by Arctic FX, and a grin every time I think about it! New Project: 600HO Fusion bump sled, Air 2.0 w/hi/low valves, HRM spindles, Retro graphics, .359 torsion springs.