Snowmobile bogs down on take off. In mine, it's . It'll idle all day if I let it but as soon as I give it gas it begins to die. The basics are to just check over the simple stuff and rule I have a 2004 Polaris 340 classic that will idle and run good when cold. When it bogs, the sled doesn't accelerate and the RPM's drop down fairly substantially. I am helping a friend get his indy 440 with a 500 engine in it going. I just got it used. The bogging definitely seems to get worse as the sled gets warmer. I've replaced the plugs and ran injector I had to take the cover off my gas tank to get at the two prong plug. when it does go the thing screams, lifts the skis right off the ground when u hit the sweet spot. It is because the engine of It does sound like you are too rich, which will cause a bog. srd, udk, ukq, xaj, ylx, cwz, rqp, wpl, hdq, kbw, lft, nua, taa, ugh, xuo,