Rotax Service Bulletin Valve Spring Retainer Replacment

It has been discovered that during the starting procedure a delayed purging of the lubrication system could occur, which may result in the cracking of the valve spring retainer. This condition can occur, if the hydraulic valve tappet has been emptied and filled with air. This is possible at first engine run or at oil change.

SB-914-011 | 3/1/2001