Despite the extremely frustrating fact that someone stabbed my seat with a key/knife today,


I'm really excited about the new parts!
everything (but R1):

(Plugs are NGK 5510 B8HS)
pulley:

R1:


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And now, the questions:
1. The girl I got it from said she had the spark plug changed about a year ago... that's what the plug looks like currently. Should I change it anyways?

2. As far as the pipe is concerned, it's basically bolt on, correct?
3. For the pulley installation, this is the only how-to thread I found by noiseguy all the text and no pictures will be tough for me. Any other resources available?
I post all this keeping in mind that I'm a really needy forum member right now. I know little to nothing, and need a lot of help with little to give back at this point, but I promise I'm learning and trying not to be a n00b as much as I can.





