We are delighted you have found your way to the best Jet Boaters Forum on the internet! Please consider Signing Up so that you can enjoy all the features and offers on the forum. We have members with boats from all the major manufacturers including Yamaha, Seadoo, Scarab and Chaparral. We don't email you SPAM, and the site is totally non-commercial. So what's to lose? IT IS FREE!
Membership allows you to ask questions (no matter how mundane), meet up with other jet boaters, see full images (not just thumbnails), browse the member map and qualifies you for members only discounts offered by vendors who run specials for our members only! (It also gets rid of this banner!)
Yes it was doing it when before changing plugs. Still has same issue after change but a few minutes later it went back to running fine. Know it’s back running rough and won’t rev past 6000rpm.
We swapped fuel pump lines from one fuel pump to the other. Same engine ran rough. It has warranty but that is 7 hrs away and we are on vacation at lake.