Mark, Welcome to the best Wing site! My 1200A says to check the pressure with the bike on the center stand, not the side stand. Can you still do that with the sidecar? If not, you may a bit more pressure to make up for the weight of the bike. Just don't overdo it!
Thanks everyone...for the info..and the welcome:waving:
When I got the bike it had been stood for about 2 years and the pressure was only 20psi. I pumped it up to 35 and it was not too bad solo but when I added the huge sidecar and pillion (um..not huge pillion I hasten to add!!..she would kill me!) the centre stand hit every bump in the road. Nowhave pumped it to what you said and the and back end has come up about 4". Brilliant:clapper: