2003 xp di wont rev past 4700 rpm and only goes 30 mph

[bvpeletz]

Bought a used 2003 xp di that had a bad starter. Changed starter and fires right up but wont go past 4700 or 4800 rpm. Maintance light comes on and give sone long beep when running tried resetting this but doesnt seem to reset...any help appreciated...also does anyone know what the compression shpuld be on this ski...im getting about 130 on both cylinders ...seems a little low but i dont think thats low enought to cause this problem

 

[Bills86e]

Your Rectifier is bad. You can get a Heavey Duty from onlyseadoo.com or Parkeryamaha.

 

[bvpeletz]

any way of checking this before i buy a new one?

 

[jhjesse]

Your Rectifier is bad. You can get a Heavey Duty from onlyseadoo.com or Parkeryamaha.

X2 on the rectifier.
130psi is normal for a 951 engine. A new 951 engine at sea level will pump 135psi.

 

[bvpeletz]

Ok i have two people say rectifier....is there some way to check this before i buy a new one?

 

[RFoster130]

Check the battery with the motor running. You should have about 14 to 14.5 VDC charging. When the engine is off, you should have anywhere from 11.5 to 12.5

 

[bvpeletz]

ok checked battery voltage with seadoo running and it does not go past 12 volts, but how do i tell if it is the rectifier or the stator...is there a different test i can do to check this?

 

[jhjesse]

1. Put an ammeter on the positive cable. Start the ski and rev to 5500 / 6000 rpms. The amperes should read 7amps. If not...the stator is bad.
2. Connect a volt meter to the battery. Turn it to read VDc. Battery should read between 11 to 11.5 volts approx. Start the ski and rev to 5500 / 6000 rpms. The volt meter should read 13.5 to 14.5 volts. If the volt meter reads 15 or more then replace the rectifer. If the volt meter reads less than 13 volts then replace the rectifer.

DI models are known to blow rectifers, because they require more voltage to run. You can buy a heavy duty rectifer.

Turn the water hose on before revving the engine and don't hold it there very long.

 

[mouthbre]

Hello. I have a similar problem with my 2003 GTX DI. Is this an intermittent issue or constant? The past three time I went out if I throttled over 1500 rpm's i would get the long beep and MAINT light. After limping back and docking I would check my wires, plugs, etc. and re launch the boat. It revs and runs fine the rest of the day. Would that be the rectifier? Thanks.