2004 Yamaha YZ 250 F Troubleshooting, Repair, Maintenance & Tune Ups – Fixya

9 Мар 2015 | Author: | Комментарии к записи 2004 Yamaha YZ 250 F Troubleshooting, Repair, Maintenance & Tune Ups – Fixya отключены
Yamaha YZ 250 F

Can u tell year model by number

I have an 04 yz250f, like absolute ****. it quite a few kicks before starting and once started, get very interesting. When i hit the it backfires quite a bit and stumbles, bam its wideopen andand takes Letting off the throttle it pops a lot and rpms never drop to a idle, it tends to just keep going, ive been the carb countless times it etc.

What could be?

I found this artical to your bike. Sounds you may need a new timing chain. your symtoms.

Thumper The company warned that the cam may be a weak point. Thumper changing the cam chain twice a and the valves once a year for a that is ridden hard.

The cam is less than $20 and is extremely to change any time you are checking clearance.

I have a 07 YZ 250 F..Was to run poorly, like it was lossing just purchased the bike some one who said it was just compressoin and was a litttle low 60 psi. the head and the cylinder to check it the cylinder to have rings into the coating of the cylinder, worn into the alunuimat the

Checked the head all valves good. checked with in the intake and exhust ports, no, leaked by the valves..After I put this together, it dosent have no spark. grounding the coil on the of the engine and kicking it over. nothing. What can i check, look good. componets in. Do i need a coil. What the resistance values be..Thanks for any

i have a 2006 yz250f and it like the clutch is slipping in 5th but its in all the other gears

I have a 04 it started fine when I it 3 months ago. I let it sit for about a and could not get it started. I changed the and put fuel stabilizer and added fuel thinking that it was bad

Finally got it started after tries by push starting, it hard for 25 min. and put it away.Tried to it the next day and can’t get it started?

It sound like a fuel but a month is not really long to cause fuel problems. My is to make a few checks first to the problem.

First, make you are only using premium These bike require a hot to run properly. Take off the seat and the air cleaner.

Dirty, clean soapy water, dry, and put on, or replace.

Remove fuel and remove your spark If it is covered in black soot, you are too rich, if burnt, too lean. is usually accompanied by deceleration in YZ’s) If OK, put the plug into the piece and ground against the Kick the bike over and sure you are getting good

If ok, put it back in.

Remove the screw at the bottom of the carburetor. I believe it is a Check for debris. If there is you will need to take off the and have it professionally cleaned.

on how to do that is as follows: If you take it off I usually get mine done for If you take it apart, be sure you only remove the bowl. The bowl of this carb is molded. The screws to take it off are star screws.

Do not remove Once taken apart it can pretty much be thrown and you can buy a new one for about $300. Never star security screws. are there for a reason.

Shut off

Take off the seat(2 12mm

Remove strap to fuel

Remove bottom bolts to fairings (10 mm)

remove fuel tank bolts (10mm)

Disconnect the line and remove the tank. it by dumping the fuel and removing the shut off switch. Check the for debris to determine just how it is. Then just clean it out by water through it till it out clean.

Turn upside with fuel cap off to allow to and dry.

Remove Hot start (14mm open end wrench)

Yamaha YZ 250 F
Yamaha YZ 250 F

Be very careful removing and this back. It is made of and strips extremely easily. If you do it, I recommend buying a replacement for it of aluminum. About 5 bucks.

unscrewed just lift it out of the carb.

Remove carb cover on right side of (4mm allen wrench)

bottom throttle cable by loosening the 10mm nut, slide out. unwind it the throttle wheel and pull it from the wheel through the

Remove the upper throttle Unscrew the nut to it with a 14 mm open end Unwind it from the wheel and it the same way as the bottom one.

the tps sensor at the wire connector. DO NOT THE SENSOR FROM THE CARB This is set by the factory.

Loosen the and rear boot sleeves to the (Sometimes a 3mm allen wrench, or 8mm

Push the entire carburetor the air cleaner, twist to the left of the bike and work it out of the bike.

If you the bottom bowl off yourself these steps.

Get a small baggy for all small parts so you lose anything.

Take of the placement of the air tube screw

Tilt the carb upside over a small bowl. will leak out.

the bottom of the bowl. (Phillips

remove bottom bowl, and screws and bowl in the bag. for debris.

To remove the air mixture screw, tighten it all the way in and record the exact of turns as this is also set by the for optimum performance. Once unscrew it completely from the while holding it over the you drained the fuel into. On the there will be a rubber washer, and a spring in that Remove

Yamaha YZ 250 F
Yamaha YZ 250 F
Yamaha YZ 250 F
Yamaha YZ 250 F
Yamaha YZ 250 F
Yamaha YZ 250 F
Yamaha YZ 250 F
Yamaha YZ 250 F

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