05 Yamaha VX110 Deluxe low power

[jasonvm]

We have just got a 05 Yamaha VX110 Deluxe with low power, I can only get it up to 43 mph. Is this normal for this unit and if not anything to check. or can we but a better impeller on it? and if so what one? or anything else to mod it to be faster?

[Technical Support]

Re: 05 Yamaha VX110 Deluxe low power

What is your compression reading? what is the max rpms you are getting?

[jasonvm]

Re: 05 Yamaha VX110 Deluxe low power

I dont know the comp but the rpms go all the way up.

[dsolie]

Re: 05 Yamaha VX110 Deluxe low power

What's your definition of all the way up? If you mean redline, then most likely you have an issue with your pump and the impeller and/or wear ring needs to be replaced.

How's the holeshot (when you pin the throttle from a stand-still)? Does the ski launch out of the water and go, or does it sit there, spinning it's "wheels" for a bit?

[jasonvm]

Re: 05 Yamaha VX110 Deluxe low power

when you gun it, it comes out of the water right now but a bit slow. that are some small chips on the impeller.

[dsolie]

Re: 05 Yamaha VX110 Deluxe low power

Could be the pump.. We really need to know the RPM's you are reaching when you are at 43mph.

Also, has the 43mph been verified by anything else besides the ski? Another ski, GPS, radar etc. Ski speedo's are always off.

[jasonvm]

Re: 05 Yamaha VX110 Deluxe low power

8000 rpm red, max

[dsolie]

Re: 05 Yamaha VX110 Deluxe low power

Somethings wrong in the pump then.. Pull and take some pics.

[Warrior Driver]

Re: 05 Yamaha VX110 Deluxe low power

Try new plugs first thing!

[habsfan1519]

Re: 05 Yamaha VX110 Deluxe low power

Try switching out the plugs like the other person on this forum said. I to had this problem it was only going 38mph.. and it just turned out to be a bad plug.. To be safe just change them all out. It will only cost you $28 bucks