No need to remove the rear end..
It's a tricky little maneuver but you lift and jostle the engine out thru the left side..as it comes clear of the top tube the driveshaft just slips off the stub on the final drive..
It'll take you maybe an hour the 1st time due to the complex wrangling you have to do, but once you get it you'll do it again in 10 minutes.
I suggest using a short piece of 2x2 lumber to wedge on the left side under the motor and lever it up while you wiggle it clear of the upper tube..
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)