this happened on my brotherin laws 95 sportsman too.it had a pinched wire on the speed limiter we fixed it and it worked for awhile now the limiter needs replaced but its not hard to get to or change.
2002 500 Scrambler-White Bros pipe,HPD airbox/carb mod chain tensenor and shock covers,TEAM roller secondary clutch,custom primary clutching ,WORKS struts,and much more SOLD
2003 330 Trailboss-stock excepet for EPI pink primary spring and Aaen blue secondary spring(gone with wife)
2001 400 Sportsman traded for a CJ5 Jeep
2004 Victory TC Cruiser
1972 FLH Harley (my pride and joy of 20+yrs)