Klx 250 to 351

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Old Mar 20, 2017 | 09:22 PM
  #1  
Justin Davis's Avatar
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Default Klx 250 to 351

Hey all, finally pulled the trigger and install a 351. Did not
Have this much noise racket from the engine before. I am
Still using the automatic tensioner looks fine but I have ordered
A manual one. Does this sound like it is the cause ?
Thanks!!
 
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Old Mar 23, 2017 | 06:06 AM
  #2  
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Make any progress Justin? I can't tell what i am hearing in your .mov file, sorry.
TC
 
Old Mar 23, 2017 | 07:06 AM
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Most of the sound is from the intake. Yes and cam chain can be loud if not adjusted properly. Its widely known that the OEM auto adjuster is crap.
 
Old Mar 24, 2017 | 09:45 PM
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Justin Davis's Avatar
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No progress yet. Checked over the timing etc again everything
Looks correct just sounds a lot more rough in the valve train area
Hoping tensioner will fix the issue. On a side note it does run!
 
Old Mar 26, 2017 | 05:53 PM
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Did you do a valve check while it was apart? It sounds fine to me, remember that you're using more gas, and have a more powerful combustion that will make more noise.
 
Old Mar 26, 2017 | 06:08 PM
  #6  
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I did check the valves everything is in spec. Maybe I'm just being too paranoid. Have not had a chance to take it for a rip yet too much snow and gravel up here!
 
Old Mar 26, 2017 | 10:08 PM
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Just ride it till it blows!
 
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