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  #1  
Old 09-03-2018, 04:40 PM
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Default 1990 yz 1251990 bogging

     

Hey guys
My yz 125 has a fresh rebuild top to bottom. I rebuilt the carb. I had a problem with it revving really high but seems to be under control now.
The problem i have now is it runs like cap and is bogging at high throttle.
Any suggestions?
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Old 09-26-2018, 06:07 PM
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Just following
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Old 10-01-2019, 01:06 AM
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time to replace the crank seals then
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Old 10-02-2019, 09:23 PM
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Quote:
Originally Posted by jaguar View Post
time to replace the crank seals then
Why not diagnose before throwing parts at the bike??

Check the plug; it'll tell you if the bike is running lean or rich. Adjust accordingly and retest. You may also want to check on the condition and operation of the powervalve.
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