Question about 2001 Honda XR 250 R

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Cam chain xr 250 honda

Put in new chain but seem to be out of sinc with valves

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  • Anonymous Mar 15, 2014

    what are the valve clearances on a 1995 xr 250

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  • 48 Answers

Check the timing marks on the crank and cam make sure they are alligned at tdc

Posted on Jan 13, 2009

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1 Answer

How to fix timing chain honda xr 200 model 1998


chains are not repairable only replace with new ! remove camshaft etc then cylinder head , then barrel and with the side cover etc removed then replace the chain ! tdc the piston when barrel back on feeding the chain up , fit head then fit cam with all valves closed and should line up to a mark on cam cog , fit chain then bolt the cam down , rotate the engine several times back to tdc and check valve clearences and refit all parts and change the oil !

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I have a 2000 xr 80,we put new piston and rings in.Timing marks were lined up but is there a way to fine tune timing?


The valve timing is a static setting. As a rule it will either work or not. The only adjustment is usually the ignition timing.

May 02, 2011 | 2000 Honda XR 250 R

1 Answer

Xr 350 timing chain slop makes noise can i adjust it


Both the 1985 honda xr250r and xr350 look loke they have self adjusting cam chain tensioners. You may have a broken tensioner or tensioner guide. With the age of the bike you may need a new cam chain. There is nothing to adjust so you need to just figure out if the chain is stretched , if a guide is broken, or if the tensioning mechanism is malfunctioning.

Oct 01, 2010 | 1985 Honda XR 250 R

2 Answers

My '85 xl 250 r seized up on me one day, looking for advice


your not going to know until it is pulled down and inspected.
You say it wouldnt start then siezed. if it wasnt running when it siezed it could be a cam chain , or a problem with the kick start mechanism.
pull the rocker cover off (it will come off with the engine in the frame) and have a look.
Pull the left engine cover off and see if you can turn the flywheel(spark plug out).
This should give a bit of an indication if there is major internal problems.
The 85 had a real problem with cracks in the head just near the spark plug thread, but this wouldnt be the cause of a siezure.

Jun 28, 2010 | 1985 Honda XR 250 R

1 Answer

How do I adjust the timing on my 250


the ignition timing is electronic, you dont adjust it.
if you mean valve timing.. if it is out of time then you probably need a cam chain and tensioner,

May 01, 2010 | 1985 Honda XR 250 R

1 Answer

How do you adjust the timing chain?


you can't adj. it the cam chain adj. is spring loaded. if your chain is lose there would be three things i would replace, the cam chain. the followers and the adj.
Given the age it wouldn't hurt please it will give a chance to look over the vavle trian.
Mark
C.C. Motorsports

Mar 19, 2010 | 1987 Honda XR 250 R

1 Answer

How do i remove the cam chain off the sprocket? undo the 2 screws out the sprocket and slide the sprocket across and down or?


Remove the spark plug then put the piston at Top Dead Center compression. Look at the position of the timing marks on one side of the cam, parallel with the gasket surface. Remove the cam as you described.

Sep 30, 2009 | 2001 Honda XR 250 R

3 Answers

04 crf 250r.... the head has a chattering noise when running


Any chance the valve spring has collapsed? Cam shaft thrust washers missing? Cam shaft bearing gone bad?
abe5193.gif b3c3550.gif Please rate this solution. Thanks!

Jun 22, 2009 | 2005 Honda CRF 250 R

1 Answer

Engine noise


sounds like it could be 2 things. the valve tappets, meaning valves need adjusting and or loose cam chain which may need adjusting.

May 27, 2009 | 2004 Honda XR 125 L

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