THE ULTRALIGHT PLACE
Rotax 447 - 1.65mm (.074in.) BTDC measured vertically Rotax 503 - 1.73mm (.069in.) measured at a 30 degree angle Rotax 582 - 1.95mm (.078in.) BTDC measured at an 18 degree angle Rotax 618 - 1.48mm (.059in.) measured at an 18 degree angle
Home
Contact Us
447/503 Service
532-582-618 Service
Choosing Oil
Troubleshooting
Reading Pistons
Electrical Specifications
Bing Specifications
Rotax Engine Specifications
Air Filter Service
Timing Specifications
Reading Spark Plugs
Rotax Owners Association
2 Stroke Principle
Installation Weights
Maintenance Schedule
912 Services