Hey everyone. Got some questions. This is my first Polaris and also my first two stroke since 2008. It's a 2012 assault with the full bike man 860 kit. Pipe clutches and all that. I just took it out for the first time. Sled pulled awesome for about a km. then it started getting a random bog. After about two more km to the cabin it got to the point where as soon as the clutch engages it would bog. We towed it out due to some one saying injectors and didn't wabt to risk anything. There's 1500 miles on sled. Big bore was put in at 1300 miles. When I bought it it pulled 140 psi each side cold and outside at -15 c. Now in warm garage it's pulling 121 psi per side. Any idea about this bogging ? 4 different guys at the hill said 4 different things. Any one else experience this? Thanks in advance ??