Also check the smaller of the 2 cables that run from the perch to the engine..this is what pulls on the reverse safety lock in the transmission.
If the cable is siezed/sticking the spring pressure won't be enough to get it too return..holding the inter-lock to allow a reverse engagement.
It's just a matter of time before an accidental down shift causes an abrupt bang!! Hope you don't have any loose fillings in your teeth..they will be coming out!
Current toys..
1986 Honda 350X..trail bomb!
1985 Honda 250SX..my main mudder
1985 Honda 250ES..Back in Black Trike
Current non-trike toys:
1990 Honda TRX300FW
1995 Seadoo GTX
1998 Polaris Indy Lite 340(Nearly new looking)
1998 Polaris Touring 500
1998 Club Car (electric)