1st 4 stroke
Magnum XL-__RFS, ASP FS__AR Series 3 and SC FS-__ are all the exact same engines. These are said to be better than older versions, particularly the carbs.
Some of the new engines have had air leaks and other problems. This might tell us that the quality of these engines still isn't good enough. But reminding you of OS's peeling liners should be enough to ...
-Tore.