Congratulations! If you haven't done so already, please select the link at the top of the page (dark blue lettering/light blue background) reading "Manuals". There, you can select your Cub's appropriate owner's manual and service manuals for reference. Many of your questions can be answered there.
Also, next to the "Manuals" link is the "CBoK" link that takes you to the Cub Book of Knowledge. There, please select any of the catagories, but "In the Barn" will give you many, many articles from members doing everything from routine maintenance to customizing.
Lastly, you can always do a search in the Farmall Cub section of this forum to discover answers previously given to similar issues. For example, a search for the word "spark" reveals 4,642 hits: search.php?keywords=no+spark&fid%5B0%5D=1
Again, great to have you on the forum. Take some time and explore, if you haven't already done so--you'll be amazed! If you don't find what you're looking for, post a question in the Farmall Cub section of this forum.