High RPMs, No Speed

andralee

Recruit
Joined
Jul 25, 2004
Messages
4
I took my Waverunner '01 GP1200R out today, and just as I opened it up and starting getting some speed it slowed down and the RPMs went all the way up. No matter what I tried it responded the same, like a car stuck in first gear. Any ideas what this promblem might be? Thanks!
 

Jeff Walkowiak

Lieutenant Commander
Joined
Jun 23, 2004
Messages
1,944
Re: High RPMs, No Speed

obstruction in the pump like a piece of rope or other item in there, also heard of yamaha motor mounts breaking and engine moving forward so the coupler disconnects,
 

BiXLL

Petty Officer 1st Class
Joined
Aug 4, 2003
Messages
266
Re: High RPMs, No Speed

sounds like cavitation to me. Check your impeller for prop burn (ruff edges), also your liner. There should be very little distance between the outside edges of your prop (impeller) and your liner. Like a piece of paper is all that should be able to fit . The yamahas need to have their pumps sealed, as stock they want to suck a lot of air. Go to Riva Yamaha, or any other yamaha dealer and get the ppk. (pump plug kit)
 

andralee

Recruit
Joined
Jul 25, 2004
Messages
4
Re: High RPMs, No Speed

sure enough. i found that purple strap i lost in the lake the night before :) thank you guys for the help. it is much appreciated from us newbies.
 

BiXLL

Petty Officer 1st Class
Joined
Aug 4, 2003
Messages
266
Re: High RPMs, No Speed

sure enough. i found that purple strap i lost in the lake the night before
Good call Jeff!
 

BiXLL

Petty Officer 1st Class
Joined
Aug 4, 2003
Messages
266
Re: High RPMs, No Speed

elementary my dear watson
Oh GEEEEEEEZ
sleep.gif
 
Top