Help! Big Bear with no power

[ljungman]

Ok, so last month I noticed my 96 Yamaha big bear 350 SE was lacking power. I took off the clutch cover and found the centrifugal clutch was very worn. I replaced the clutch with a 2ed hand one that was in good shape and has lots of material left on it. I also replaced the clutch packs as I figured I might as well for the extra $40 seeing as how I had it apart. Changed the oil. Have 10w40 atv oil in it now.

So I took it out today and still no power. It starts and idles fine but in higher gears it will bog down and if I try to spin the wheels by puching against a telephone pole, ect it will just start to push and then bog down. It won't spin the tires at all under load.

-I've cleaned the carb a million times.
-No holes in any intake boots ect.
-Air filter is clean.
-I've adjusted the clutch from one extreem to the other with that little screw on the side with no change at all
-I've played with the air/fuel screw on the carb with no change at all
-I haven't really checked compression but it will blow my thumb right off the hole when cranking

It just started doing this suddenly and I'm running out of ideas on what it could be. Any thoughts?

[ljungman]

Needed a new cintrifical clutch and a new stator. Works great now.

[DirtyWombat]

Did you go with an OEM clutch or did you go aftermarket/performance? I have a Beartracker that is going to need a clutch soon and was just wondering...

[dieter33]

Why not investigate to tell what's wrong with your so called big bear. try it.