Please note revision C of the 2017 ProWatercross rulebook. The changes incorporated will be valid for the remainder of the year including the World Championships being held at Sugden regional park, Naples FL, Nov 2-5. The rules address requests for allowances in the 4-Stroke Ski Stock and Spark classes.
- 4-Stroke Ski Stock will now be allowed to use aftermarket handling components, impeller and flame arrestor as identified in sections 24.9 and 24.10 and referenced in rule 26.1.3. ECU reprogramming will also be allowed as is defined in rule 26.1.5.
- Spark classes are allowed to run with modified or aftermarket engine access panels as is defined in rule 24.10.9.
Please note: Revision B of the 2017 Pro Watercross rulebook. This revision contains the following changes which apply to the Pro/Am runabout classes:
- Allowance for modified or aftermarket valve springs and retainers for SeaDoo RXPX and RXTX 300 Models
- Allowance for modified or aftermarket pulleys and tensioners for the Kawasaki Ultra 300 and Ultra 310
These changes have been added to the Runabout Box Stock, Runabout Stock and Runabout Limited rules. Sections 34, 35 and 36 respectively.