need help

[crackers20]

I was geting my bike ready to go riding with a guy i know in the neighborhood and i set on i with one foot on my stand. my foot slipped i fell over with my bike and where the electeric start wire's connect into the engine one of them popped out. the other one has a tear in the protector thing thats around the wir's but i can cover that up. the problem is the one that popped out. putting it back in i think a peice of the connection boot fell of and that broke the seal...so i have an oil leak now but i dont know if thats somehting i could easely do on my own or if i should take it to the chot to fix cuz the boot isnt something you just take off. i dont know if i have to replace the whole wiering or just the boot. and even iff all i have to do is the boot i dont know how to replace it. plus i dont know where that piece that fell off is so if its on there now i dont know how to take the casing apart to get it out...so all im asking is if someone can tell me if i should take it to a shop or not. all help is appriciated.