I don't believe this belongs in any one category, so I decided to post it here. I have a 2008 Suzuki C50 that several years ago developed a back knocking sound after riding it too hard (was late for work). After hearing the knocking, I did a valve tune and oil change. This did nothing. Well...

I bought a new transmission for my 1972 Honda CT70 because it would slip in and out of 1st gear. so i had a transmission expert (dad's buddy) take the motor apart and install the tranny. i got a complete set of gaskets and everything. however, he decided to live his life in an RV and gave me my...