JustSomeGuy
New Member
Hi everyone! I've got a bogging issue that has me at my wits end, and I'm hoping y'all can help. I inherited a pair of GTXs (94 and 95) that has been sitting for many years. I rebuilt the carbs and got them running. The 94 ran great for one trip on the river. The next time I took it out, bogging.
The problem:
The ski runs fine when it's first started, but after less than 5 min it bogs down and runs lumpy like it has a misfire. Even when the ski is running well, turning either direction makes is bog almost immediately, and it does not rev as high as it has in the past. Sometimes I can hold the throttle down and it will pick back up, but will bog if I turn again. It rarely stalls completely. If I shut it off for 60 seconds and turn it back on, it runs fine, then bogs again a little sooner. It runs well longer when it's cold. If I stay in a straight line, it will run better for longer, but will eventually bog.
Some info about the ski:
- I've rebuilt the carbs twice now, including checking pop off pressure, and tuned them to spec.
- New battery
- Replaced all the Grey fuel/vent lines
- Removed and cleaned fuel tank
- Bypassed the fuel selector that was causing fuel starving at WOT (I don't use it anyway)
- Oil injection was deleted when I got it, runs on 40:1 premix
I spent ages attacking this like it was a fueling issue i.e adjusting tune, checking rich/lean condition with choke, rebuilding carbs etc and nothing made a difference. After doing all that, I read on here about rectifier issues, so I tried the rectifier out of my 95 and the the bogging was still there, but it acted more like an electrical issue. It would sometimes surge, sometimes bog, but it would change rapidly and flip flop between surge and bog, as opposed to the gradual bog before. But it still always bogs when turning, which I can't understand. So I checked the voltage on the water and it never rose above 13.75v, and wouldn't drop when bogging like I hoped it would to indicate a bad rectifier. It stayed pretty even at 13.75v. I unplugged the red wire on my rectifier, and it seemed to run better, but still wasn't %100 and it killed my battery extremely fast.
I've got a new rectifier coming tomorrow, and I'll update this thread with any results, but I'm wondering if anyone has any ideas in the meantime. Why would it bog when turning?? What am I missing?
Apologies for the long post, thanks for taking the time to read it!
The problem:
The ski runs fine when it's first started, but after less than 5 min it bogs down and runs lumpy like it has a misfire. Even when the ski is running well, turning either direction makes is bog almost immediately, and it does not rev as high as it has in the past. Sometimes I can hold the throttle down and it will pick back up, but will bog if I turn again. It rarely stalls completely. If I shut it off for 60 seconds and turn it back on, it runs fine, then bogs again a little sooner. It runs well longer when it's cold. If I stay in a straight line, it will run better for longer, but will eventually bog.
Some info about the ski:
- I've rebuilt the carbs twice now, including checking pop off pressure, and tuned them to spec.
- New battery
- Replaced all the Grey fuel/vent lines
- Removed and cleaned fuel tank
- Bypassed the fuel selector that was causing fuel starving at WOT (I don't use it anyway)
- Oil injection was deleted when I got it, runs on 40:1 premix
I spent ages attacking this like it was a fueling issue i.e adjusting tune, checking rich/lean condition with choke, rebuilding carbs etc and nothing made a difference. After doing all that, I read on here about rectifier issues, so I tried the rectifier out of my 95 and the the bogging was still there, but it acted more like an electrical issue. It would sometimes surge, sometimes bog, but it would change rapidly and flip flop between surge and bog, as opposed to the gradual bog before. But it still always bogs when turning, which I can't understand. So I checked the voltage on the water and it never rose above 13.75v, and wouldn't drop when bogging like I hoped it would to indicate a bad rectifier. It stayed pretty even at 13.75v. I unplugged the red wire on my rectifier, and it seemed to run better, but still wasn't %100 and it killed my battery extremely fast.
I've got a new rectifier coming tomorrow, and I'll update this thread with any results, but I'm wondering if anyone has any ideas in the meantime. Why would it bog when turning?? What am I missing?
Apologies for the long post, thanks for taking the time to read it!
