The six speed trans is giving me problems I suspect shift forks but wanted any opinions. My bike slips into what seems like neutral , if I hold it in 1st with pressure down it will go, if I left off the gas it is in neutral again, go to second or 3rd or 4th if I don't keep pressure on the shift lever up or down it goes into a neutral no go deal. Any ideas on what could cause complete failure in every gear?