Got a 2004 suzuki eiger, it wont ever run, it is got new plugs, new coil, new gas and new fuel filter. Iv'e had this trouble with this atv over the years, it was always something with the carb. l sent it to a guy this last time, he said he cleaned it about 10 times at least. And he said sometimes it would run good, then starting cutting back. So he could not fix it. Iv'e always had trouble with this thing, and once I'd get it fixed about 3 months later it would either stall after a few secs, or not even run. l believe it is got a vaccum leak going into the intake, and Iv'e clamped the clamp as tight as l could get it on the carb and intake, still no luck. It is some sort of keihin carb. POS, I'd rather get a mikuni. Whats the deal? How can l fix this right?

Sometimes the problem with the vac leak is u have the carb clamps to tight & it is leaking because the rubber is bending up on the carb boot.but anyway..here is ur carb & step by step how to clean it..

http://myural.com/keihin_32cvk_disassembly.htm

Also on ur tank where u turn ur fuel on..pet-cock.there is also a filter screen inside the pet-cock.you should clean that too.Sounds like ur starving for fuel..
Down at the bottom of the page u will see this part>>>>> Cap removed exposing port. This is where a carb sync'ing device would be hooked up. l bet this is where ur having problems..