01 1100 zxi problems running with a new sbt engine.

[ajsulloftw]

whats going on . just dropped in a new engine started right up. took it out and ran great for about 2 hours. while i was cruising at about 3 k rpm and gave it more throttle it would drop back down to idle. then if you give it gas again it will go to full throttle but drop right back down to around 3 k rpm and sometimes shut off but would start right back up. i have water flow it feels warm not hot. the engine doesnt feel to hot i can rest my hand on it without burning it. the thing runs great when it sits for about 10 mins but then will have the same problem again. on trailer it idles at 3k rpm and will rev right up and then return to 3k rpm. i have no problems shutting it off. anybody got an idea? thanks adam

[Technical Support]

Re: 01 1100 zxi problems running with a new sbt engine.

Is everything stock on the ski? Did you go through the carbs and inspect, clean or rebuild them, you may also have an issue with the stater.

[ajsulloftw]

Re: 01 1100 zxi problems running with a new sbt engine.

everything is stock on the ski. i cleaned the carbs when they were off even though they were already clean. i guess it could be the stator its just weird that it just happened all of a sudden. all the stator is for, is charging correct? i can test it and see if its putting out. what about the high temp sensor even though the light never came on?

[ajsulloftw]

Re: 01 1100 zxi problems running with a new sbt engine.

also i was concerned about the gaskets i received for the exhaust riser. the original gaskets had nice wide holes for the cooling water to flow the ones i received from sbt only had one 1/8th inch hole and that was it. maby that could effect the temp sensor giving it a false reading

[Technical Support]

Re: 01 1100 zxi problems running with a new sbt engine.

Yes it could , I will look into the gaskets you have and let you know what I find

[ajsulloftw]

Re: 01 1100 zxi problems running with a new sbt engine.

any word on those gaskets? i can pull it apart and show you if you need

[Technical Support]

Re: 01 1100 zxi problems running with a new sbt engine.

If you wouldn't mind, you maybe correct, the hole sizes may be different for zxi exhaust v.s other models. I dont have an O.E gasket to check it against yet.

[Bigsnow]

Re: 01 1100 zxi problems running with a new sbt engine.

Might check for exhaust leaks. If there is one your ski will starve for fresh air and run slow/badly.

[ajsulloftw]

Re: 01 1100 zxi problems running with a new sbt engine.

Might check for exhaust leaks. If there is one your ski will starve for fresh air and run slow/badly.

eh doesnt feel like that. first of all i dont smell anything in the engine compartment and then . second of all its very abrupt like its being electronicly limited

[ajsulloftw]

Re: 01 1100 zxi problems running with a new sbt engine.

by the way compression is 127 psi on all 3 cylinders

[ajsulloftw]

Re: 01 1100 zxi problems running with a new sbt engine.

‪1100 zxi problems‬‏ - YouTube

quick video of what its doing in the water ^^^^^^^^^^^

[Technical Support]

Re: 01 1100 zxi problems running with a new sbt engine.

The seals match the O.E seals, but I think It wouldn't hurt to open up the passages on the head pipe gasket, but dont change the larger gaskets passages.

[ajsulloftw]

Re: 01 1100 zxi problems running with a new sbt engine.

well i got it figured out. your going to laugh but it was the fuel filter causing this problem. the only reason i didnt check it was because it was brand new. but thanks for the help . word of advice for you people reading this. dont overlook the simple things haha. thanks for the help .

[Technical Support]

Re: 01 1100 zxi problems running with a new sbt engine.

I bet it was an automotive fuel filter, They dont work on jetskis.