what did you use to lube the drive shaft spines? I think there are 4 on the 1100.
If you use a 60% moly paste in theory it should be good for 100k miles. Most people still check them everytime they change the back tire, just for piece of mind if for no other reason. To pull the 'nose' cover off the spline enclosure and look at them, or wipe them down and put new moly on them takes about 20 minutes. If something happened and they did run dry, its about $500 in parts to replace them all.
The AIS blows air into the stock exhaust when you are compression braking, to purge the cat converter. It makes a kinda Pwhoosh sound when you shift if are pushing the bike hard. If you have an after market exhaust with no cat, then its not doing anything useful.
The truck feeling is what makes it a cruiser bike. Its partly due to the steeper rake on the front fork, and partly to the heavier than standard tires - both of which make the bike really hands-off stable, and which requires you to push harder on the grips to counter steer. You can lean the bike over till the pegs scrape on curves, the bike will take corners leaning over nearly 45 degrees, it just takes more push in the arms. When you let off the pressure on the grips the bike will stand up and go straight nicely all by itself.
If you want the bike to feel more sporty, put lighter tires on the next time you change them. The OEM Bridgestone tires are pretty stiff and heavy. The OEM Dunlop tires are lighter. If you look at tires at an online sales store they normally list the weight of the tire - so its easy to pick what you want.
Personally I like the stable feeling of my 650 - Im mostly cruising on secondary roads at 50 to 60mph, and the bike feels very secure.
Last edited by KCW; 09-01-2018 at 10:23 AM.