Most ppl, that do raise there back end, the engine will pitch upwards. Just nature of the beast. Not sure if they are issues, but adjustments need to be made. Carb will more then likely follow pitch of the engine. So therefor, depending on how much the engine angles up, might need to adjust the float in the carb, so don't over flow when engine not running.
Then of course is the oil level on dipstick. wont get a correct reading. When checking oil, or changing it. Will need to slope the buggy, so engine is level. I use a ditch, or put the back tire on back of my trailer. Use level app, on my phone to check how level it is. It's very close if put on back of my trailer.
Again, not sure why 2nd hole. maybe another reason. So if it's in the top hole, is it not running right? Does it ride funny? Or just wondering what it is for? If it's not broken, don't try to fix it.
