laptop4079
New Member
Hello everyone, go easy on me it's my first post. I'm normally really good at sourcing my own information but I want some feedback on what my next step should be. I've always wanted a jet ski so I found a really cheap one and bought it and of course it didn't run. I've rebuilt the carbs and jet pump but I'm now having a problem with the low speed adjustment. From an idle if you give it throttle it bogs. I can get it going by blipping the throttle to raise the rpm and then I can take off. It seems no matter how far or what direction I turn the screws nothing drastic happens. All the fuel lines and both plugs have been changed and I've clipped the spark plug wires back. It has the 657 with the dual mikuni sbn carbs. I've also noticed fuel and oily froth being spit back out of the carbs. I've timed the rotary valve multiple times to make sure it's correct and when I had it apart I did notice some light to medium scoring on the rotary valve cover. I've spend a decent amount of money rebuilding this thing the correct way and I want to make sure I'm pointed in the right direction in replacing the rotary valve and cover.
Thanks!
Thanks!