REV-XP/XS Chassis: Perf. Trail 120-129 Inch Models
Hi, I'm totally new to this site...forgive me if this is not the right place to ask this. My son has a 2008 GTX 550F, the other day he lost the engine in it (piston and rings). I replaced the piston and rings and now the machine runs very rough and the entire engine is covered in oil. Anyone out...