I have a Linhai 300 that I had trouble getting up on the center stand so I drove the rear wheel up a wedge 2 by 6 and that made it easy. I got tired of that so cut some off the stand legs to make them shorter so I didn't have to lift the scooter as far up to get it up on the stand, much easier now. This is an involved operation and welding is required to re-attach the pads. Now when on the center stand the rear wheel is only about 1/2 inch off the floor instead of 1.5 inches. Just be careful not to cut too much off or it won't pick the wheel off the ground.
good tip there was a guy asking about something like this today
"CHRISSY" 2008 Shanghai Schenke Motorcycle Company LTD model # SL 150 21B changed all lines, NGK plug, added windshield, saddle bags, extra LED brake light and turn signals on trunk otherwise STOCK!!!!!!! 67 mph top speed, i was 120 lbs, PA STATE POLICE VERIFIED " Wanna run PINKS ?" as of 14 Jan '13, 8215 miles
If you do that be carefull to account for tire wear or you could make it so the tire won't clear after you replace it. My bike was more difficult with the minimum tire 130/80-15 on it however if I cut the stand then the alternate 130/-15 or 140/80-15 sizes might not clear the ground. Since the speedometer reads off the rear wheel I went with the 130/-15 alternate size which trued up my speedometer and allowed me to get into a Metric Cruiser tire.
The Metric Cruiser tire also lasts about twice as long as the scooter tire but only cost a little bit more.