Sorry for being a little vague guys I've only had the quad for 5 days havent really had the time to take it all apart. Its is a 2002 honda 4trax. It came with the original book I was told all of the routine maintenance was done as well as the fuel system was all cleaned out and a new carb. I just assumed it had a fuel pump because my Polaris does and that's the only quad I've ever owned. I know this is not a sport atv I got it for hunting. And no I didn't mean i was popping it into gear to make it pop up. Sitting in first gear at a stop it would pop up because of the torque (there's also a very sturdy welded rack on the back which may play a role and I was on pavement with brand new back tires) but after taking it out today it has definitely lost power somewhere I couldn't get it over 20 mph going up a very small hill or even spin a tire in first gear on sand. The only thing I changed was a spark plug (the same exact one)also has new air filter any ideas? its definantly not pulling a deer out of the swamp the way it sits