Hello all! I´m the proud new owner of a 1985 suzuki GS1000G. I´ve recently put the bike in the shop to have the carbs cleaned and now the bike runs great. But my only concern is how to change the oil. Basically not how to but how do I remove the old oil filter? How many quarts do I puit back in the bike? Do i check the oil lever while the bike is running or when its off? Is there any way to get rid of the stock mags and replace them with larger wire rims? Any help would be much appreciated. thx