the 12JG rebuild kit will work for your 12JB. The JB pump has the same components as the JC and JG. The JG is a split bowl like the JB except the outlet vanes of bowl extend all the way to the nozzle housing flange of the bowl, where as the JB doesnt. It's the only difference.

I say rebuild it now while its out and apart rather then risking blowing a weekend on the water cuz your pump went bad. 

If you have more time than money, do it yourself with PPP.

 Yes i planned on doing it myself, But what the heck is ppp.

 Thanks.


2sav

Prior Proper Planning (i.e.: research)

 I got this forum, What better research than to ask all you veterans of the jetboat

2sav

not trying to jack the thread, but question for tom or anyone that can answer, i am getting ready to reasslemble the boat and have the bowl off my jet (berk 12jg), inside the pump at the very back there is a threaded hole in the middle, i have nothing in there, when i ordered gaskets i saw a plug was supposed to be there, i did order it, but what the hell is it for and what does it do?? kinda looks like a black butt plug (keep the comment to yourself beerjet ), should i reinstall it or leave it out?? thanks in advance

yep, thats it, but what is it