S'ok, i was a mechanic for 10 years before becoming an "office T****r... ;-)
ive repaired bike ECU's with components taken from car stereos,built our own turbo systems (for a 2 litre engined vauxhall chevette!) added 200hp nitrous systems to a Chevvy motor in a sierra, and modified cylinder heads for rally, oval curcuit and short circuit engines.
i also spray paint as well, waterbase and 2K....
all the above means that whenever my mates bikes break they expect me to fix it for free...hahaha... :-)