Recent content by Carl Nelson

Hi all, I bought some new fuel line from Thrust Innovations at the recommendations of many on this forum. Is this line only intended for the routing from the fuel tank to the fuel cock, or can I also use this for the connections to/from the carburetor? I tried emailing TI but got a bounce back...

You were absolutely right, I took off the intake grate and the impeller is rubbing against the wear liner. I took the pump apart and the bushing is not seated flush. See photo attached. Bearings on drive shaft and in the pump rotate fine. It also seems like the wear liner is too tight for the...

My 550sx has been running flawlessly all season. Earlier today, I noticed that it was making a strange sound (almost like a grinding noise?) at about 3/4 throttle and it wouldn't go any faster. At lower speeds, it seemed to run fine. Then later today, I checked all the wires/tubes to make sure...

Another one

Ok thank you very much. I am a beginner when it comes to jet ski repairs. Are there any good guides or videos that show how to test ebox components? Is it just testing all the wires with a multimeter?

Hey guys, Could really use your knowledge and expertise here. I have a 1991 550sx that has been running great every weekend. When I went to take it out the other day, the engine was turning over very slowly almost like the battery was dying. The day before it ran perfect, no issues. It would...

Thank you everyone for the help. It turned out to be dirty contacts on the lanyard switch. Cleaned them up and as good as new.

Hi Mike, thanks for the response. The choke has been removed off the ski. Ill take a closer look at the carb.

I've a had 1990 SN Superjet with 701 the past 2 seasons and it ran perfectly. About a month ago, I noticed it had a bit of trouble restarting in the water after falling off. Now, it usually takes about 15 minutes to get it running, but once it does, it has no throttle or performance issues. The...

Hey guys, New to the forums here and would love some opinions from the experts. I currently have a modded 550sx and am looking to get another. A guy near me is selling his JS550 (89 I believe) which has a 750 swap for $2,000. Upgrades include the following: swapped with a fresh 750ss motor...