2001 fx 400

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gerk101 · #1 Post by **gerk101** » Thu Apr 23, 2009 10:56 pm

i have an 01 fx 400 , gets spark , got compression , fuel pumps working checked for power to the fuel injectors it there . it sounds like it wants to start and i get a pop every now and then out the air box it just wont start. if anyone can help me out i would greatle appreciate it . john , thanks

claas900 · #2 Post by **claas900** » Thu Apr 23, 2009 11:01 pm

QUOTE (gerk101 @ Apr 23 2009, 03:56 PM) <{POST_SNAPBACK}>

i have an 01 fx 400 , gets spark , got compression , fuel pumps working checked for power to the fuel injectors it there . it sounds like it wants to start and i get a pop every now and then out the air box it just wont start. if anyone can help me out i would greatle appreciate it . john , thanks

Spun flywheel. Take off the black cover on the right side,it uses 4 Philips screw. Then the nut on the flywheel I think is 17mm take it off,you'll see a keyway that key way should line up with the "C" on the cannondale. If its not lined up you found your problem.

wistech · #3 Post by **wistech** » Fri Apr 24, 2009 4:32 pm

If its a fx400 cable clutch my bet is on a bad flywheel side main bearing. gently pry up and down on the flywheel to see if it has any movement. When the bearing goes it gets an intermittant crank signal from the flywheel wobbling and will just pop,spit and flood the motor. spun flywheel is first to check as well.

claas900 · #4 Post by **claas900** » Mon Apr 27, 2009 4:52 pm

Hey gerk101 did you find the problem? Keep us updated

gerk101 · #5 Post by **gerk101** » Wed Apr 29, 2009 9:30 pm

QUOTE (claas900 @ Apr 27 2009, 05:52 PM) <{POST_SNAPBACK}>

Hey gerk101 did you find the problem? Keep us updated

i changed the fly wheel and it fired right up , but i am getting oil out of the seal behind the fly wheel there is no movement in the crank has anybody had a problem with those seals. thanks for the help..

cannondale27 · #6 Post by **cannondale27** » Wed Apr 29, 2009 9:33 pm

Its possible someone took the stator off and either used the wrong spacer or forgot to put it in.That seal is easily changed if its shot.Check to make sure stator update is done also to save trouble in future.

Canniboomer · #7 Post by **Canniboomer** » Wed Apr 29, 2009 10:21 pm

I now have some upgraded versions of that pesky seal.
For a leaky FX400 (later bored-though case only), you would want the Viton 5mm deep, and with a ribbed outer lip -- for the best possible seal.

gerk101 · #8 Post by **gerk101** » Sat Jun 06, 2009 9:51 pm

QUOTE (gerk101 @ Apr 23 2009, 10:56 PM) <{POST_SNAPBACK}>

i have an 01 fx 400 , gets spark , got compression , fuel pumps working checked for power to the fuel injectors it there . it sounds like it wants to start and i get a pop every now and then out the air box it just wont start. if anyone can help me out i would greatle appreciate it . john , thanks

i dont have the up grade what di i need , do you have the seal , i realy wanna get this done.

Canniboomer · #9 Post by **Canniboomer** » Sat Jun 06, 2009 10:47 pm

Yep various parts and Update kits are in stock.
Just call when nearby to your machine, and with the flywheel off. You may already have the second-generation case. If you can SEE the entire surface of the 30mm diameter seal, then cool -- easy fix for the leak anyway, and presuming the mainbearing is good like you say.