Question about Yamaha YZ 250 F Motorcycles

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2006 yamaha yz 250f starting problems

Bike set for six m went to start it ,now it backfires.

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You may be having trouble with a sticking intake valve. Remove the valve cover and spray some WD-40 onto the valve and spring. Try to operate the valve with your fingers to work it loose. Once the engine starts running, it should improve. You may need to change the oil. Good luck.

Posted on Jan 30, 2010

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Posted on Jan 02, 2017

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Yamaha yz250 specs


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How much oils do I put in my 2005 yz250f


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May 21, 2012 | 2005 Yamaha yZ 250 F

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How much oil do i put into my 08 yz250f Special Edition??


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May 12, 2012 | 2004 Yamaha YZ 250 F

1 Answer

I have a yamaha yz 250f 2006 bike will not start on kick start but will start with a push


if the bike push starts, i assume it runs good,
if the kick does not turn motor over, there is a spring clip that engages the kick gear that may be broken or misplaced
if the kick start turns the motor over, you have to use decomp to get just past TDC then kick

Apr 11, 2010 | 2004 Yamaha YZ 250 F

1 Answer

I have a 2005 kx 250f backfire and no start


Chances are when the OHC was installed it was one tooth off on the timing. You have spark and gas and the bike is a single cylinder so that is what I would check. Slack in the chain tensioner is what usually creates the problem. All slack should be at the back side of the cylinder.

Jun 17, 2009 | 2006 kawasaki KX 250 F

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I have a 2003 Yz 250F. I start the bike and warm it up and push in the cold starter knob the bike will not Idle. please help.


turn the idle screw in and check the setting on the air fuel mixture screw. is the bike all stock?

Jun 09, 2009 | 2004 Yamaha YZ 250 F

1 Answer

Yamaha 2006 yz 250f gets over heated


Hello,

It is normal for the bike to overheat when idleing !

This bike needs air to pass through the radiator for cooling purposes. Air speed needs to exceed 40 kilometres per hour for effective cooling.

A good tip is to use only coolant in the radiator. Do not mix with water.

Cheers

Jon

Mar 23, 2009 | 2004 Yamaha YZ 250 F

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