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For the initial settings - 03-12
- lightly seat the pilot all the way to the back - lightly, too much torque and you'll ruin the o-ring in there - then back out the pilot screw 1 & 1/2 turns. From there - you let it run for 10 minutes or so and then adjust the idle to 1,300 +/- 50 rpm - turn your handlebars left and right after adjustment of the throttle lever to make sure it's okay and not binding up - and do your adjustment from the throttle stop screw. According to the specs, once you set that pilot at 1,300 +/- the rest of the adjustment is done with the throttle stop screw. If you do all that and it's still not picking up fuel - definitely give the intake/carb boot a good look over for any cracks or anywhere vacuum could escape - and if it still doesn't pick up the fuel - give the throttle set screw a turn or two. Had a 2000 Yamaha XT225 carb I rebuilt a few weeks ago - adjusted everything as instructed - but it wasn't picking up the fuel. I gave the throttle set screw about a 1/3 turn in to put a little nudge on the throttle and it fired right up. All The Best and Good Luck - Justin Lee, 17 South Industries, LLC
rebuild the carb, include a new float and throttle spring and replace any dog eared screws. The kit comes with a new needle valve and two jets and all the gaskets. Take you time and replace all the parts. Be careful to put the keeper clip (ring) on the proper groove on the needle valve and extra care when bending the float arm to proper travel specs... they will break off if you are rough. Write down the mixture settings and use those as your starting point to readjust the mixture. The engine is designed to use choke when starting and should have a slight skip when idling that smooths out when adding throttle.
Sounds like a carb issue...make sure you have fresh ,clean gas.You havent got water in your carb/tank have you? I would start by taking the carb apart and give it a really good clean.Check all jets and orifices.Another words,take apart anything in the carb that you can,clean and replace.
Programmable service interval
The purpose of the programmable service interval is to provide the consumer and dealer with a convenient reminder for routine maintenance. When your vehicle leaves the factory, this feature is set at 50 hours. You must enable the programmable service interval before it
can be used.
Once the service interval mode is set with the hours when service is due, the hours of actual engine operation are subtracted from the set
hours until 0 is reached. When the counter reaches 0, the wrench icon will flash quickly for 5 seconds each time the vehicle is started as a reminder that the periodic maintenance is due.
To set the hours, press and hold the mode/override button until the wrench icon flashes. When it begins to flash, release the button. The setting will increase by one hour each time the button is pressed.
Pressing and holding the button will allow the numbers to escalate much faster. When the desired time increment is displayed, release the button and wait for the wrench to stop flashing. When the wrench stops blinking, your service hours are set.
NOTE: If you scroll past the intended number, hold the button down until the count turns over to 0. You can then reset the number.
If the service interval is enabled on your ATV and you wish to turn it off, toggle to the service interval mode. Press and hold the mode button for approximately 7 seconds until the word OFF appears in the
Rider Information Center.
You could try replacing the ignition coil. If it's failed, then it may run ok for a few seconds, but as it heats up it fails. Trying to start again immediately will be too soon for the coil to have cooled down. Leave it a few minutes to cool down and it will run again, but only for a few seconds again.
Hope that helps