FX140 Problems - PWC Forum: The best hang-out for Personal WaterCraft enthusiasts
 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 07-11-2009, 09:55 PM Thread Starter
Junior Member
 
Join Date: Jul 2009
Posts: 2
FX140 Problems

Hello everyeone,


I have hit a brick wall in trying to figure out what is wrong with my brothers jet ski. Bought a brand new battery for it to use since he said it was dead. Placed it in this morning. Will not start. He ran it two weeks ago no problems. It is a 2006 FX140 with 40 hrs on it. This should not be happening. I pulled the plugs, the starter is turning it over, the impeller is turning while it is turning over. He told me he ran over a rope last time he had it. States he removed all the rope off the shaft and none entered further up the shaft out of site. Of course this is all after I retrieved it 2 hrs away. Any tips would be appreciated. I am thinking maybe an ethanol problem? Pulled the plugs they looked good but noticed some messy looking pistons (well the top of the pistons). What does everyone think? Also had 4 flashing green speed lights.


Thanks in advance-
nhildreth100 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 07-12-2009, 04:48 AM
Senior Member
 
Join Date: Jun 2009
Location: Australia
Posts: 323
what does messy pistons mean. Do they have gouges out of them. Check the fuel pump is working by connecting the lanyard and listen if it powers up. The fuel pump is in the tank. If it is not working, you may have to attach a capacitor to the cam position sensor and cable tie to the loom to stop elec interference. Try new plugs first, and try starting with the air filter out.
GCwaverunner is offline  
post #3 of 6 (permalink) Old 07-12-2009, 11:09 AM Thread Starter
Junior Member
 
Join Date: Jul 2009
Posts: 2
Thanks for the info. Dirty pistons I meant was this- after removing the pplugs, I looked down into the motor to see if the engine was actually turning. I saw the pistons moving and when it reached the top I could see some black gunk on top of them. This seemed like it would be abnormal. The plugs looked great no corrosion or grime. I do hear a pump running when I hit the start button. Once I hook the killswitch up nothing happens until you hit start. (meaning no power or nothing) I am guessing this is normal as well. Getting ready to try the ethanol treatment approach as well. Anyone else have any idea what this could be?
nhildreth100 is offline  
post #4 of 6 (permalink) Old 07-12-2009, 08:07 PM
Senior Member
 
Join Date: Jun 2009
Location: Australia
Posts: 323
So when you connect the lanyard up you cant hear anything. You wouldnt hear the fuel pump while turning the engine over! THe black stuff on the pistons is normal carbon build up. ethanol treatment wont do anything. I reckon your fuel pump is not working.
GCwaverunner is offline  
post #5 of 6 (permalink) Old 08-09-2013, 12:53 PM
Junior Member
 
Join Date: Aug 2013
Posts: 3
I replaced cam sensor to '04 fx140 after changing plugs..still no spark....turns over ...batery is good any ideas??
iamken is offline  
post #6 of 6 (permalink) Old 08-09-2013, 05:04 PM
Senior Member
 
Ernest T's Avatar
 
Join Date: Aug 2009
Location: Woods on the left past Mayberry
Posts: 3,033
If no spark I'd check the ignition coils.

2008 Yamaha FX HO Cruiser
2010 Hurricane Sundeck 2100
Ernest T is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the PWC Forum: The best hang-out for Personal WaterCraft enthusiasts forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome