1. that has not been truly established yet.
I Like to use a synthetic, I push the bike fairly hard when towing my 450/500kg trailer at times and never have any problems with engine getting hot, it also shifts gears smoother
2. If your a very aggressive rider
NO. If you mostly cruse and like some twisties maybe. If you dont mind trying something different and have the patients to adjust the air pressure until your happy,
YES.
I still like to push it in the twisties and with a bit of attitude you can
3. its simple enough. Eastern Beaver kit.
or make your own if you have some basic electronics knowledge
4. with a wife like he has, no. He does behave somewhat metro sometimes.
but you told me he was Gay