hey everyone my sled is bogging when it is about 3/4 to full throttle. i cleaned my carbs and it is still doing it. what do u think is wrong?

I had a 90 indy 500 before I got my doo......could be old gas,could be bad belt,but when mine did it,it was time to rebuild the front clutch and replace the spring.try adding some fresh premium gas. If it was above 30 degrees out that would also make it boggy as the 500 run really rich. Good Luck

NEW SPARK PLUGS=FIRST THING. :lmao:

ya i got new plugs and a new belt but still doin it. last year i was runing premium and over the summer i rebuilt the top end and i started runing regular. do u think that change could of done it or?