2010 YZ450F



11 replies to this topic
  • coppolaj

Posted November 05, 2013 - 03:31 PM

#1

I just Bought a 2010 YZ450F and after 3 rides it's back firing and has no power, Idles fine.  



  • KJ790

Posted November 05, 2013 - 03:53 PM

#2

Check your cam timing. It is possible your cam chain jumped a tooth on the timing.



  • Greg Pennsiltucky Lykens

Posted November 06, 2013 - 02:31 PM

#3

sounds like a leak in the exhaust system or a worn out silencer. Something along the lines of repacking and a new cylinder to exhaust gasket should fix it...



  • grayracer513

Posted November 06, 2013 - 03:05 PM

#4

If it starts and idles OK, but won't go beyond that without falling apart, then it sounds like a plugged injector, clogged fuel filter, or a failing fuel pump.



  • rickallen124

Posted November 07, 2013 - 03:54 PM

#5

Try running some injector cleaner through it, it may clean it up.



  • coppolaj

Posted November 07, 2013 - 05:07 PM

#6

I think your right about a fuel problem. I don't see where a filter might be.



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  • coppolaj

Posted November 07, 2013 - 06:12 PM

#7

Try running some injector cleaner through it, it may clean it up.

I put some in but hasn't made any changes so far.



  • rickallen124

Posted November 07, 2013 - 06:12 PM

#8

I believe that you may have to disassemble the fuel pump to check/replace the filter.



  • coppolaj

Posted November 07, 2013 - 06:13 PM

#9

If it starts and idles OK, but won't go beyond that without falling apart, then it sounds like a plugged injector, clogged fuel filter, or a failing fuel pump.

The dealer said the same thing. We might the filter be on this beast.



  • coppolaj

Posted November 07, 2013 - 06:21 PM

#10

I believe that you may have to disassemble the fuel pump to check/replace the filter.

Sounds like I'm pulling the pump tomorrow.



  • grayracer513

Posted November 07, 2013 - 08:13 PM

#11

The filter, last I heard, is not "replaceable".

 

Read:

 

http://www.thumperta.../#entry10702600



  • coppolaj

Posted November 07, 2013 - 08:22 PM

#12

The filter, last I heard, is not "replaceable".

 

Read:

 

http://www.thumperta.../#entry10702600

That sucks.







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