Just got a quick question I got a 2007 brute Force 650 just bought it low hours only a little over a hundred hours on it when I start it up it starts reasonably easy it runs good for about 5 to 10 minutes runs like a scalded dog runs perfect but after I ride it for 5 or 10 minutes it feels like it's holding back missing losing the power it had when I first started it I changed the fuel pump was wondering if it possibly could be the spark plugs which I'm going to change spark plugs next has anybody else had these issues

 

I assume you changed the filter when you changed the pump. Yes, change the plugs. One simple possibility is tank breather blocked, a sucking sound if you slacken the filler cap when the fault is on, indicates a blocked vent.