How to change flat tyre on dsidecar?

We had a 3 and a half hour journey on our royal enfield bullet and GP Manx side car and got a flat tyre in the side car. One of the spokes had penetrated the inner tube and resulted in a puncture. No one would take the tyre off! Please can we have instructions on how to change the side car inner tube and how to prevent it from happening again? Thank youHow to change flat tyre on dsidecar?Its like changing a bike tire. You're going to have to remove the wheel, break the tires bead (if necessary), and use 2 tire spoons to lift the edge of the tire over the rim. unscrew the nut on the valve stem of the tube, slip the valve stem thru the hole and pull out the tube. Put the new tube in (after the spoke has been fixed of course), tighten the nut on the valve stem. Using the spoons you pull the tire back over the rim, being sure not to pinch the tube (this may take 2 people to make the job easier). Once the tire is over the rim, blow it up about 1/2 way and bounce the tire on the ground a few times all the way around, to make sure the tube unrolls and has no pinched spots inside. Let the air out, and re inflate the tire to full pressure and re-mount it on the bike.