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2004 Yamaha YZ 250 - Page 3 Questions & Answers
Bike chokes down after throttle is open past
hi ,
Is your carby well fixed? If your air intake is too big ,the bike will not run properly .
Make sure the carby is not taking additional air or not enough .
Clean the air filter , tune the carby with the mixing screw air/fuel
When you give it throttle it boggs out but i dont
It could be the spark plug yes. But it could also be the high speed jet in the carb. Try changing the spark plug first before taking the time to rebuild the carb. It is unlikely but it also may be your ignition system itself. Thanks for asking!
And don't forget! It's at your discretion
to leave a rating!. I always try my best at explaining my answer to your
problem.
My 1987 yamaha 80cc big wheel will not idle. would
well first try the choke if it runs good when you pull the choke even a little then you need less air, if it runs worse then you need less air, in is less air and out is more air thats the air mixture screw.
idle screw is self explanitory start turning it if it idles up then your turning it up if it idles down then you are idling down usually in is up.
Turn on gas and gas comes out almost all the lines
The problem is with your float inside the carb. It's either stuck or your needel/seat is sticky or there's a piece of trash holding it open. There are several causes but it's a simple fix.
The best solution is to tear the float bowl off and take a look. It can be done without buying any parts.
The proper float level for this bike is between 5.5 and 7.5MM.
I hope this helped.
My Bear Tracker 250 would not run well. It was
Are you sure it has a good plug and spark? If not you might have bent the float when you cleaned the carb, try spraying starting fluid in the intake and crank the motor, if it fires the problem is fuel, one of the Jets in the carb might be clogged also make sure you have no water in your gas.
YZ 250 1994 MODEL
the only place you may find an engine for this bike is in a brakers yard or if your realy lucky on e-bay but the chanses are it will be just as claped out as the one you have
Year
Find the model production year, usually found on the same plate as the vin. Then add one year. For instance if the bike was produced in 2001, then its a 2002 model.
I crashed and need to straighten the steering.
First, support the bike so that the front wheel is off the ground. Then, loosen (do not remove, just loosen them) the bolts that clamp the fork tubes into the upper and lower triple clamp braces. Loosen the front axle attachments to the fork legs. Now stand in front of the bike and hold the front wheel between your knees and turn the handlebars until they are straight - and re-tighten everything. Also, check the large nut on top of the steering stem, making sure it is tight.
How much oil does a yz 250 2004 model motor take
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Use 10w40 motor oil in the gear box. Don't use any synthetic oils, oil
marked "EC", or oil with "special" additives. Stick with the major brands;
Pennzoil, Quaker State, Mobil or Shell. Please take a moment and rate my answer. Thanks!
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