I was cleaning the filter on my Raptor today, and when I pulled off the airbox lid, found some muddy type gunk in the airbox. The quad is running in tip-top shape, so the only thing I could figure is when I stand the quad up, excess gas is running from the carb, down into the filter and airbox, mixing with the dirt in the filter.

If this is true, then I won't be concerned, but if its something different, please school me on whats happenin' so I can correct it. Thanx for your opinions, I always trust the knowledge of the riders who frequent this forum....[img]i/expressions/face-icon-small-wink.gif[/img][img]i/expressions/face-icon-small-wink.gif[/img]

 

i have a 2005 raptor 350 and the first time i took off the air lid it had sum dark brown gunk in it too and i never took mine in mud or much watter i stuck my finger in it an took a wiff mine was gas so i think they do have a lil gas run off in the air box

 

I just took the whole air box out and found the same gunk in the carb boots but I have to admit that I haven't cleaned those in a year...but it is pretty normal especially with the foam oil along with air born dust and a liitle fuel vapor....just keep up on it and you'll be fine..I clean my filter after every ride.

 

Also, you should run the gas out of the carbs before standing the Quad on the grab bar.
This will cut down on the gas entering your airbox.....

 

See....I knew you guys would ease my mind.[img]i/expressions/face-icon-small-smile.gif[/img][img]i/expressions/face-icon-small-smile.gif[/img] I only run my quad in the desert, so I knew it couldn't be any kind of moisture. Thanx again for everyones advise, and now its time to pack up and head to tomorrows race...WOOHOO!!!!![img]i/expressions/face-icon-small-wink.gif[/img]