O.S. engine MAX-91SX-HRING C Spec PS VIPER, manuals:
The O.S. engine MAX-91SX-HRING C Spec PS VIPER is a high-performance engine perfect for RC enthusiasts. Ensure proper use with the included Owner's Instruction Manual. Download your free manual from 88.208.23.73:8080 to get the most out of this powerful engine for your next RC adventure.