I got the bolts loosened on the axle under the hitch and on the brake caliper but i cant figure out the next part, where you have to put a screw driver in the sproket. I looked but i couldnt figure it out at all im completely stumped.

 

there is a hole in the sprocket you put the screwdriver in there and roll the bike until the screwdriver slides in to the hub.

 

turn the axle housing with a pipe wrench. ( after the bolts are lose.)

 

i have a 2000 325 trail boss . what year is yours??

 

Mine is a 2002. I dont get what you guys are saying the only hole i have in my sprocket are the big gaps in it.

 

Where is the axle housing???

 

this should help. go here

 

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http://216.37.204.206/wps/Polaris_OE...=13&A=268&B=32 or use

http://216.37.204.206/wps/Polaris_OEM/PolarisATV.asp


copy and past this address it shows pics.

 

A wrench on the axle is the easiest way. Once you do it, you won't believe how easy it is. Trust me, we've all been there, once. Try rolling it forward, sometimes that loosens the axle and will tighten the chain.