I recently just bought a 1999 magnum 500 and am new to polaris. anyway, i am looking for a little help. I can only give it about 1/4 throttle and then the motor bogs out. as soon as i let off the throttle it picks back up. the motor revs fine i dont hear any odd noises. i have inquired with a few people i work with and have had a ton of backyard mechanics tell me their ideas, i figure i would rather get some insite from intelligent people. I haven't really tore anything apart yet, but i would rather get a good direction to get started in. i plan on doing all the normal stuff, drain gas tank, check plug, clean carb, air/gas/oil filters. but if anyone can relate to give some help i would greatly appreciate it!!!