05 rmk 900 bog and running rich

Okay here is the deal, I bought the sled blown up. Mag side piston decided it didn’t want to be a piston anymore and exploded. It wrecked the crank case so I ended up pulling the motor and rebuilding it from the ground up. New crank case, new crank seals and barrings, new judges rings and pistons, new head. I sent the crank out to get checked and it was good it’s a Carl cycle crank. I put her all back together. Took my time as I really appreciate my work and make absolutely sure I do everything correctly. My issue is this, I took it for a ride today and the thing bogs pretty hard on the low end, when you feather it it figured it out and takes off, but it dosent have a sweet 2 stroke smell but also dosent smell like raw gas. Anyway when I rebuilt it I sent it to the dealer and got a new tps and has them set it. For some reason I got a high idle around 2800 when warm and 2500 when cold temp stays around the 120-130 range it has the radiator delete on it. Why dose it bog foul plugs and idle so high? I did add extra oil to the fuel just to make sure if my oil pump wade through working I didn’t fry it. So that may explain the plugs but the high idle and excessive bog I don’t know.

Thanks

-Noah

05 rmk 900 bog and running rich