Yamaha 2004 fx cruiser, will not crank . motor turns over /

there are no gears just a direct drive from the crank to a jet pump ! if theres no propultion of water it could be several things !
1. plastic bag etc in the intake to impellor pump assy !
2. impellor gap to housing too much ie worn impellor !
3. impellor not turning because splines on either the shaft or impellor worn !
4. drive coupler damaged and spinning on shaft !
Try running on a hose pipe and look at rear of engine ( remove plastic cover so you can see the 2part coupler and drive shaft ) .
Check the impellor assy !

check impellor blades not bent ! scoop grate not bent ? wear ring not badly worn ?not got some rope or debrise on impellor ?

How old is the fuel? Ethanol causes major problems if left too long. You may need to empty the fuel and clean out the fuel system. Try changing the fuel filter and adding some seafoam to the fuel and running seafoam thru the fuel system. Hopoe this helps.

sparks ? compressions 100psi or more ? water in fuel ? injecters clean ?

L stands for limp mode
it is a mode that the ECM selects to prevent serious damage to the engine ( from you lack of oil )
have the fault codes read then reset with the scan tool

i have a 08 yamaha fx sho it keeps on freezing up in the water and dying of, i was almost 10 miles into the ocean and had to be towed by one of my fellow riders. whats causing this problem?

did you mean 900 cause 9000 is overrived and the engine may be blown

I have a Yamaha fx 1100 that starts real slowly the battery is fully charged but the bike sounds like its not got alot of power going to the starter can anyone help solve this also battery terminals are clean and not corroded

If you are achieving proper max RPM but not achieving peak MPH, the prop is cavatating. That means it is aerating the water around the impeller. The most common cause of this is debris (rope, weeds) wrapped around the prop shaft. With the lanyard key in your pocket, look up the intake screen for the jet pump and see what is wrapped around the prop shaft. Once you remove that, your MPH should be right back to where it was.

u need push on the remote the l mode when the ski is not running it work just **** a alarm remote make sure the battery is good because those remotes batterys go bad quick