Yamaha 125 fan Posted November 22 My Yamaha warrior has a weird issue were it runs just fine off of the choke and idles but as soon as I turn the choke off it will start to idle and then back fire out the intake and stop running please help Quote Share this post Link to post Share on other sites
NYMXer Posted November 22 Today's gas has a very short shelf life. I bet your Warrior sat unused for about a month and hence, the pilot jet is slightly clogged up with varnish from the stale gas. This is a common problem and you can clean out the pilot jet, but I would just replace it and run a little Sea Foam in you gas on a regular basis. Quote Share this post Link to post Share on other sites
Yamaha 125 fan Posted November 22 I cleaned the carb out with carb cleaner and it still dose the same thing Quote Share this post Link to post Share on other sites
S.O.A.N.Z Posted November 23 did you clean out the jet passages - or just spray carb cleaner in there ? Quote Share this post Link to post Share on other sites
NYMXer Posted November 27 On 11/22/2019 at 4:06 PM, Yamaha 125 fan said: I cleaned the carb out with carb cleaner and it still dose the same thing Just spraying some carb cleaner into the jets won't get them clean enough. In desperate moments, I used welder tip files on dirty jets, but like I said the first time, just replace your pilot jet, adjust to a crisp idle and go ride that Warrior Quote Share this post Link to post Share on other sites
Yamaha 125 fan Posted Tuesday at 12:42 AM Well I took the carb off and cleaned everything and put a pen spring in the Excelerator pump and now it runs off choke but it will backfire and shut off and it won’t run because it’ll backfire and shut off immediately I did check the valves and put an new intake on it. Any advice Quote Share this post Link to post Share on other sites
