Hi everyone new here. I have a 2014 450 grizzly. Little backstory my kids ran it through some deep water and it’s been sitting for quite a while. We did an oil change, new park plug, new carburetor and battery and it starts and runs now but doesn’t seem to want to go over 10-12mph and sound like it is running/idling high. My husband has tried to fix it but we are unsure where to go from here any help would be great.