Question about Yamaha YZ 125 Motorcycles
Posted by Anonymous on
Hi, Anonymous and the usual suspects are:
1. Throttle cables improperly adjusted or pinched.
2. Idle adjusting screw needs to be backed off.
4. Air fuel mixture adjusted too lean start with 2 full turns.
5. Intake system air leak.
6. Fast idle choke ramp is not releasing.
7. Broken throttle return spring.
8. Damaged diaphragm or slide.
9. Faulty MAP, TPS, ATS, O2, sensors or wiring/connector
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Dirt Rider Magazine
YZ 125 Climbing high idle Yamaha 2 Stroke
How to Get Your 2 stroke Idle Perfect YZ125
Yamaha YZ125N1 Service Manual
OEM parts for Yamaha
Posted on Jul 14, 2016
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Posted on Jan 02, 2017
My 'wing won't run unless it has been warmed up some. I would suggest that you r&r your carbs to make sure the jets in the bottom are working correctly. They tend to get plugged up, especially after sitting & the aluminum flaking off inside... Rick
Posted on Apr 14, 2009
fuel carburetor problem! it causes most of the spluttering problems i have encountered with mine so far!
it could have blockage and insufficient gas enters on it during high revs!
Posted on Jun 18, 2009
SOURCE: 2004 Honda Shadow Aero stalls
There seems to be low gas level in the float chamber of the carburator.
Clean the carburator and check the float level and reset.
With the choke 'on' and if you hit the throttle it will die because there is a restriction of the air flow to the carburator.
Posted on Jul 19, 2009
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