All the stores are closed so I cannot pick up any jets for my 2000 powder special 600. We are leaving early tomorrow for the last sled trip of the season(last minute trip).The temp is going to be +4*C by the afternoon! Can and should I lean out the machine a bit? If so any help would be greatly appreciated The last time I ran in warmer weather it ran like crap!!! My carbs are flatsides (tm38) should I change the position of the needle?