Hi David. Welcome to MBc! Home of many answers, and awaiting your ideas.
General request to all new members.
Please, before posting any questions, do a search. Then READ,READ,READ.
There is a ton of information here. Many of your engine and performance issues in the Garage & Tech/Mech Help have already been covered. Here at MBc we are the home of nearly all MoteredBike questions. If you search and are unable to find your answer, don't hesitate to post your question. Were here for each other! Enjoy!
Here's a great post link to get you started. http://www.motoredbikes.com/showthread.php?t=9263&highlight=things+done+first+time