finally was able to ride here in WNY. after about 65 miles i started getting a bad vibration/humming noise from about 10 MPH on up..... i noticed both upper idler wheels had a ton of slop, so i have a couple bearings to put in. would bad idler bearings cause this? the reason i wonder is because after the humming started, it was bogging at WOT. all the other throttle ranges felt fine, but WO it would bog slightly......anybody experience this kind of problem??? i am hoping it is the bad bearings and maybe some dirt in the main jet... i only rode about 5 miles after this noise and only ran WOT 2 or 3 times for just a second, so i am sure i didn't damage anything, just hoping it isn't a crank bearing/seal maybe??? any help would be awesome! this is a new one for me :bash: