09 Summit throttle issue and oil usage issue.

09 800 PTek after sitting during the week when you take off from the truck cruising up the road at low to mid rpm if you let off the throttle slowly the motor takes a couple seconds to come back to an idle. If you snap off the throttle it goes right back to an idle. Ride 5 miles and it doesn't do it the rest of the day regardless of how long the sled sits. During the time it would normally do it if you go from wide open to throttle closed it won't do it this is my riding partners sled and he just found out another guy he knows with the same sled started having the same exact issue. While riding the sled runs fine pulls like it should etc.

Part 2. This same sled last year started using way to much oil. We were coming out from a day of deep deep riding and about 5 miles from the truck his low oil light came on. He was down to below a quarter tank of oil. We filled the sled with fuel and he only used 8 gallons. The last ride of the year was 32 miles and he went through a quarter tank of oil just trail riding with the girlfriends. The oiler is in adjustment and the sled isn't smoking anymore than it used to.

Any thoughts here guys?

I forgot to put in the original post the cables are new. That was the first place he started.

Yep the cable adjustment was set to factory spec then played with from there with no change.

Yes there's free play in the throttle. Went through the carbs and primary clutch this weekend found absolutely nothing.