In all my cars Ive had I use Seafoam to clean them out. Well I bought a 1996 XP and 1996 Spi and they guy who sold em to me said not to use it because there just so simple being a 2 stroke therefore theres no need. The internet says otherwise. What do yall think I should use to clean the carbs out and general Cleaning overall? what about Sta-bil?