3 February 2025
BRP-Rotax has issued a surprise Mandatory Service Bulletin for three of its latest 900-series engines: the fuel-injected 912 iS, 915 iS and 916 iS.
The inspection may reveal that the crankcase and/or the gearbox housing will need replacing,
Rotax says it has identified a potential manufacturing issue affecting the hardness values of the crankcase and/or gearbox housing materials in certain engines.
“These components may not meet the required specifications for material hardness, which could lead to reduced component durability and/or potential oil leakage,” says the BRP-Rotax statement.
“If you own, operate, or maintain a 912 iS, 915 iS, or 916 iS fuel-injected engine, you may be affected if its serial number (S/N) falls within the ranges listed in the Appendix section of the Certified version of the Service Bulletin,” continues BRP-Rotax.
Rotax 912 iS block
1 Check Your Engine Serial Number Locate your engine’s serial number and verify whether it falls within the affected ranges listed in the Appendix section of the Certified Service Bulletin (see the Mandatory Service Bulletin – link below)
2 Schedule an Inspection Contact your nearest Rotax Authorised Distributor, Service Centre or iRMT to schedule an inspection.
3 Comply with the Service Bulletin Timeline Ensure inspections and any necessary replacements are completed as soon as possible or within the compliance deadlines specified in the bulletin.
4 Repair Costs and Support Rotax has provisions for potential warranty coverage or cost-sharing for affected parts and labour. Contact your Rotax Distributor or their independent Service Centre for further details.
For more details, watch the video here and review the Mandatory Service Bulletin.
