Kick start only about to break if it's really sloppy,you can buy rebuild parts, a screw,spring,ball,o-ring, to help with the jingling.
A compression test is always a good idea on a new purchase, usaually a better idea before a new purchase.
Good thing about two pipes is, start it and hold both pipes to see if they get hot at the same time, if one doesn't, that's your problem side.