So I've upgraded to a spring tensionor some time ago. My 40 tooth sprocket adapter is in the mail. Now I've been feeling the urge to clean and review my engine and its various parts. Im curious as to what parts I should grease. The only thing my research has uncovered is that the thing under my clutch plate cover should be well oiled. Can I use wd-40? Also Im curious as to should I somehow grease the part that actually pulls on my chain. On a side note my carb leaks gas from the filter. .I think I need to align and tighten it better. If,there is anything I should make,sure to grease/oil let me know.