1. S

    96 GTI 717 Tuning

    Just finished a top end rebuild of my 717 and replaced rotary valve and cover. I also completely rebuilt the fuel and oil system, including replacing grey fuel lines with mpi grade fuel injection (black lines), all filters inline, rebuilt carbs with osd return to oem kit, and rebuilt the fuel...
  2. Boshwash

    95 GTX bog and Carburetion Education

    Hey guys! I've got a few questions to start with and potentially more to follow. I have 1995 GTX thats been in my family since it was purchased new. It just got a remanufactured SBT engine that I installed, as well as the carbs rebuilt, which I also did. Took them to a semi-local shop to...
  3. G

    WOT testing

    I have a 1995 GTX 657x Seadoo. Last time we had it out it cut out after 20 seconds at wide open throttle, but would idle just fine. I replaced all the grey fuel lines, replaces the fuel selector and rebuilt the carbs (one filter was 1/2 pluggend the other 1/4 plugged with gunk) with new...
  4. N

    1999 GS Ski 717 WOT looses power

    Hi everyone, I'm having trouble with a 99 Gs 717 ski. At WOT in water it will rev and go but then drop down to about half thrust. It will catch and go for a few seconds if you keep holding it WO. I have already replaced all the fuel lines and fully rebuilt the carb hoping that would fix the...
  5. Brholwer

    1996 Seadoo xp surges/bogs at WOT

    1996 Seadoo xp surges/bogs at full throttle Had the carbs rebuilt last year ran perfect first time out full throttle and everything now runs fine until you pass the 45 MPH point then it starts to surge and bog it will go full throttle then back down then back up then back down etc. Just...
  6. C

    Mercury 240 EFI stalls at full throttle

    I have a 2001 Challenger 2000 with the 240 efi M2 jet drive. I bought it used a couple years ago and has ran great and been a good boat to me. Last year towards the end of the season I was heading down river and everything was going fine. I was at about 3/4 throttle maybe a bit more and the...
  7. P

    2000 GTX ME...lost my top end speed

    I purchased two identical 2000 GTX Millenium Edition skis with the 947 engine about 6 months ago and they have been running fine. On Saturday, we took them out and cruised for about 30 minutes. On the way back home, I opened mine up to full throttle and it started running rough and topped out...