Pull the plug, spin the crank with a socket since you got the side cover off..
Free??
Also, will the trike roll or is it stuck in gear?
Get some idea where the lock up is..engine or transmission?
Start with the basics..not a lot of information here?
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)