Hi all, I have a 1996 seadoo gti with 717 engine, and my problem is that there is a lot of smoke coming out of the carburetors when I try to start the engine. I did some googling but only found one other person with a problem similar. I have no idea what would cause this problem, I have never seen this ski run before, but the previous owner had it running 6 months ago. Any help is appreciated.
Lots of exhaust coming out of carbs causing no run 96 gti
- Status
Check your timing. Watch YouTube. Lots of videos on how to set timing.
He told me it ran, but he seemed like an honest guy. Now that I think about it, right at the beginning, it did run on one cylinder but not the other because of carb problems. Since then, thanks to your suggestion, I have rebuilt the carbs with genuine Mikuni and both cylinders get gas. I talked to my grandfather and he thought that the engine might just be getting flooded. Would that cause lots of smoke to come out of the carb?
Thanks for you suggestion on keeping the airbag on. I tried that and it seems too be working a bit better! I still cant get it to start, but I think that the carbs are giving way to much gas to the cylinders. I did get it to run for a second with the gas turned off.
Do you have any forums you suggest on setting the carbs correctly?
Do you have any forums you suggest on setting the carbs correctly?
Seadoo Carb Rebuild Thread
A stock seadoo will run perfectly with stock settings, if not then you have something wrong.
A stock seadoo will run perfectly with stock settings, if not then you have something wrong.
| 1996 | GTI | 717 | 270500278 | 270500279 | BN-38I (SB) | MAIN-130 PILOT-67.5 | 1.2 | 270500267 | 36 - 60 | LOW- 1-1/4 HIGH- 0 |
I checked the compression with a Harbor freight tester which after purchasing it, learned that they are not super accurate, but I tested it with the smallest tube and got compression that seemed good compared to others tests. I have not done anything with rotary valves so I don't think that is a problem. And for electric, I think that is all working, and I do have spark.
I can get it to sometimes run now if I turn off the gas, and whenever I pull out the sparks, they are drenched. My theory is that the pop of pressure in the carbs are too low. I don't have a tester, but if you think that could be at least part of the problem, then I will make one. By the way, thanks so much for you help! I really appreciate it!
I can get it to sometimes run now if I turn off the gas, and whenever I pull out the sparks, they are drenched. My theory is that the pop of pressure in the carbs are too low. I don't have a tester, but if you think that could be at least part of the problem, then I will make one. By the way, thanks so much for you help! I really appreciate it!
I just finished buying/building a pop off tester and testing the carbs. I got 40 psi on both carbs, which is the minimum that the GTI is rated for. I know that in your carb rebuild post, you say that you like to be on the upper limit of the ratings. Would you suggest that I buy springs or is that not the problem?
I did some research, and I am not sure about this, but I think that the GTI uses the 80 gram, black springs. One spring that was in my carb looked sort of green (maybe rust), and the other metal. One of the previous owners did some work on this ski (replaced all fuel lines and did a carb rebuild), so that person might have changed out springs. Do you think the problem is still pop-off or something else? I did to a bit of a leak test, but the air compressor I am using leaks a lot so the pressure doesn't last long.
- Status
