There have been reports from the field about cylinder wear caused by the exhaust valve. To prevent cylinders from wearing and avoid the necessity of replacing cylinders due to exceeding the wear limit 0,25mm Rotax have introduced a cylinder protection plate ROTAX part no. 251336 to prevent excessive wear in this area.

The cylinder protection plate is not symmetric and can be installed in combination with the old conventional as well as with the new electronic RAVE system:

The cylinder protection plate is optional. If cylinder protection plate is used it must be fitted between cylinder and exhaust valve gasket

0.08mm