Question about Yamaha Motorcycles
Hi, Couturechris and the usual suspects are:
1. Dirt or other foreign matter between float valve and its seat.
2. Float valve sticking.
3. Float valve and/or valve seat is worn or damaged.
4. Float misadjusted.
5. Float cracked, leaky or damaged.
6. Excessive "PUMPING" of hand throttle grip.
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1985 YZ490 jetting
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OEM parts for Yamaha
Posted on May 27, 2017
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Posted on Jan 02, 2017
i have this bike too. There's a small compartment on the back, you need a key to open it. There's a little sliding bit that hides the keyhole. open that up, there's two wingnuts holding the seat on.
Your bike may be different, there's several different versions of this bike that i've seen. This is how it works on mine.
Posted on Sep 17, 2009
SOURCE: yamaha xt 125r wont start up
hello, check and see if plug is firing a blue color, if not you may need a stator-pickup coil, i have a 2000 warrior, it is firing, orange and white color, stator neede to be replaced, pickup coil was going out, also check ign coil, these have a problem with getting weak after a while. most likely it is your stator pickup coil, no blue fire from plug, no running the motor. my stator pickup coil was going out. no blue fire from plug, i was told by a yamaha mechanic, no blue fire from plug it will not run, has to be blue, not orange or white looking fire.make sure carb is clean and all jets inside are clean, and air passage ways
Posted on Feb 25, 2010
Your cylinder is probably full of fuel, becareful here. Disable the spark and kick it over with the spark plug out to remove the fuel.
Your problem sounds like a stuck float in the carburator. It needs to be removed and cleaned out good.
Posted on Jul 16, 2011
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