HELP!! my 98 seadoo speedster one engine wont rev past 4500

[Jmccue]

Hello,
If anyone has had an issue like this, maybe you can give me some advice.
I have low rpms/speed on one motor and high rpms on the other.
I am a newbie with boats and just got my first one recently. First, let me tell you the boat was not run at all for two years. I changes the plugs, cleaned the carbs, and all the basics.When I launched the boat for the first time it started right up, but had real low rpms and would not go past 10mph. I probaly shouldn't have pushed it, but I figured it just needed to be blown out like a car that hasn't run in a while. One motor will go to up to 7500 at times, while the other struggles to hit 4000. Sometimes they both only run at 4000-4500 and the motors sound loud, revving like they are struggling. Once in a while, they will both tack at 6500-7500 and the boat runs beautifully 45mph with the whole family... Any ideas?

 

[timmyboy76]

when going thru carbs, did you tear apart them, or spray the outsides. Makee sure the low adjuster setting is 1-1/2, and high adjuster is 0. Go thru the external fuel pupm..located in the "bend" of exhaut pipe. Pull plug boots off, and clip wires 1/4in...if all good, then, unplug the red wires at rectifier, see if that fixes it, if so, new rectifiers.

 

[Jmccue]

Hi,

Thanks for the reply, I didn't tear the carbs down completely, One of the butterflies was sticking on the throttle, I greased everything up and blew out all the lines and ports. I will try what what you recommended, hopefully I can figure something out!