No this post is a lil old im a newbie just bought a 19ft Piooneer with Berkley jet 12JG-A my buddy gave me brand new Jetovator..Are all these jetovators universal fitting any Berkley pump? Im having problems with steering arm and wondering if its worth it to install..He gave me cables with it..any info would help looks i could of used stock steering arm but theres a key slot & theres not one on nozzle
Today, everyone uses a Place Diverter. Different animal, and far superior.
However, IF you have an old JetOVater, I can help, or Tom can from JBP. Free is cheapest yet, and JetOVaters can work just fine.
Depends on WHAT you have...........Post some pics and we can tell you in a heartbeat. The JetOvater is far more complicated than a Place Diverter, and requires a LOT of special parts.

Ray
Edit: Sounds to me, and I just saw the "key slot" part of the post, you have a nozzle for a YJ Jacuzzi pump......maybe.......