20 Most Recent 1992 Honda XR 250 R - Page 2 Questions & Answers

Go to http://www.thumpertalk.com/topic/576969-1979-honda-xr80-wiring/

depends if your doing a lot of short outings etc ! ? if the oil is black then change it , do 100km after oil change and check condition ! mite take a few oil changes to get clean unless your up to stripping the engine and clean everything !? if using for competition then its different again , change after each meeting as harder work out and need to keep quality of oil to max ! also the piston and rings are changed after every meeting , try and get the xr manuel as its got the periods of replacements etc !

check carb is clean and settings , check timing !

Could be coil or kill switch... check spark plug wire and contact by pulling off and checking if it will arc when held within 1/4" from a metal part close enough to reach... do this when dark so u can see the arc if and when it happens... if no arc then replace wire, then coil... Good luck

your carb. is gummed up. Get some carbeurator cleaner spray and spray it into the air intake as it is running until it clears up. if it wont clear up, you will have to have the carb rebuilt.

you sure that the needle isnt bent,

Hi There.
There is no bearing in the forks. you are trying to take aparts the triple trees.
to remove the front forks
jack bike up
remove front wheel
remove fender
loosen the clamps that go around the forks.
there are 2 triple trees, upper and lower , the upper has the nut your taking off, of course the lower is the bottom. both have clamps that hold the forks in.
then just pull and twist in a downward motion to get the forks out.

reinstallation is reverse steps.
note how much fork is sticking up through the hole in the top triple prior to removal.

if you do want to remove the triple trees and replace your neck bearings, you will have to cut the bottom bearing off, i've never been able to remove those bearings without ruiing them.
that bearing is a very tight fit.

Hope this helps you out.
thumbs up to the do-it-yourselfers
Best regards
Big Al

check for damage to the kill switch or wiring

Honda engines are traditionally 4 stroke. If the exhaust comes out of the head it is a 4 stroke, if the exhaust comes out of the cylinder it is a two stroke.

check all connections at coil and any wireing, make sure your getting fuel through carb.

take a long crowbar fit it between the bolts and crack the bolts with a breaker bar in an opposing or star pattern use a mapp gas or propane torch VERY CARFULY hit the area around the bold for 4 seconds to overcome any loctite if you cant break with a bar by hand first there is a better way but it involves a specialty tool or two

what chain are trying to replace?? your question is very clear what kind of bike is it
Mark Woodring

Put the motor at Top Dead Center "TDC" on the compression stroke of the number 1 cylinder. Then loosen and tighten the cam chain adjuster bolt on the back of the cylinder.
If you are dealing with an automatic cam chain tensioner that has gone bad. Unbolt it from the back of the cylinder and replace it. Or if it is internal, take off the valve cover, unbolt the tensioner from the back of the cylinder, slide it out the top of the head, slide in the new one, set the motor to TDC , and set the tension on the new tensioner.

IF you don't have a service manuel, get a copy for the year / make of your Honda. It will show you where the marks are and how to time your bike.

Hi there,

Try checking the cable. It maybe the case that the cable inside the protective sleeve snapped. Open the throttle assembly for any mechanical defects and let me know if this solves your problem.

Hope this helps,
levibit

25thou or 0.9mm
Imperial or Metric, your choice.

http://www.bikebandit.com/houseofmotorcycles/2001-honda-motorcycle-xr250r/o/m3076#sch95821

Follow this link to a schematic that shows you how and where your tensioner is.

Try this link
motorcycle-manuals.asp

Hope you get success.

clean the carburetor

There is a drain bolt on the bottom left side of the motor. It looks like a tappet cover because it is used as a tappet cover on other Honda models. If you look at your tappet covers on your head(valve cover) you will see what your drain plug looks like down by your counter shaft sprocket. If you take off the drain bolt/tappet cover the dirty oil will pour out. Be careful not to over tighten the cover when your put it back , the outer edge is designed to break if you put too much muscle in to it. You only need to snug it up enough so the o-ring seals the oil and the cover does not come loose.