Apr 19, 2012 bikerbenny Says:
Great stuff buddie I just picked up one for 350 bucks. I'm hoping all the smoke it burns is just unadjusted valves
Apr 19, 2012 smallengineshop Says:
Double check your manual, but I think you need to be at top dead center on the compression. If your at TDC on the exhaust stroke your valve's opening might overlap.
Apr 17, 2012 mxvsatvforlife8 Says:
I had one question I am trying to adjust the valves on my xr 250 but only the exhaust valves are loose. I have the T mark lined up but just dont know if im on TDC could you please tell me if it sounds like I am.
thanks
Apr 15, 2012 cdilmore Says:
Great job - thank you!
Mar 8, 2012 smallengineshop Says:
Glad you found it helpful and thanks for watching!
Mar 6, 2012 Chronicxable Says:
Good vid , i have a 125 and i done my valves completly wrong i done the inlet tappet on the compresion stroke and the outlet on the exhaust stroke (seemed logical at the time)
but this just cleared it up for me why my bike isnt running properly
Feb 17, 2012 120970able1 Says:
Dam, never thought of that
Nov 29, 2011 sheephead007 Says:
great video!! would valves out of sdjustment affect compression when starting?(low compression)
Oct 24, 2011 smallengineshop Says:
Thank You! I take the plug out to make it easier to turn over.
Oct 24, 2011 trab1925 Says:
Thank you so much for this video! I got my valves adjusted and it went very smoothly! However I used this video in accordance with the manual and it never said to take the spark plug out so I never did and it was fine...
Sep 4, 2011 smallengineshop Says:
I do adjust them with the engine cold. Thanks for watching!
Sep 4, 2011 johnstonutd Says:
i forgot to say good video! well shot and explained.
Sep 4, 2011 johnstonutd Says:
the valve adjustment covers are a good idea, they look like the sump plug on my bike. does your engine have to be totally cold before you make the clearance adjustment? because the clearances will close up when the engine is hot.
Jul 9, 2011 pesochekkk Says:
its more work then i was expected. but thx for this video looks very simple.
Video Details
**Always follow the instructions in your repair manual when doing repair or maintenance work on a motorcycle. Manuals can be found at the dealer and online.**
In this video I show how to adjust the valves on a 1985 Honda XR600. Each valve and rocker arm is covered by a screw on cap called a valv... More
**Always follow the instructions in your repair manual when doing repair or maintenance work on a motorcycle. Manuals can be found at the dealer and online.**
In this video I show how to adjust the valves on a 1985 Honda XR600. Each valve and rocker arm is covered by a screw on cap called a valve adjustment cap. The caps should be removed to adjust the valves.The valves should be adjusted with the bike cold and the piston at TDC (top dead center) on the compression stroke. There are two small threaded covers on the left side of the crankcase. Behind the larger cover is a bolt attached to the crankshaft that can be used to rotate the crankshaft using a ratchet and socket. Behind the smaller cover you can see the outer edge of the rotor/flywheel. On the outer edge of the rotor is etched a line next to the letter 'T'. When the line is exactly in the center of the smaller cover hole, the piston is at top dead center. Use a ratchet and socket to rotate the crankshaft counter clockwise until the line next to the letter T is centered in the smaller cover hole. If the piston is at TDC, the rocker arms should be loose and you should be able to wiggle the rocker arms with your fingers. If you can't, than the piston is not at TDC on the compression stroke and the crankshaft should be rotated another 360 degrees counter clockwise. Once the piston is at TDC on the compression stroke the valves can be adjusted. On each rocker arm is a adjustment screw and a lock nut. After the lock nut is loosened, the adjustment screw can be turned to change the distance between the adjustment screw and the valve stem. The distance for the intake valves should be .004 inch and the exhaust valve should be .005 inch. After the adjustment screws are set to the correct setting, the lock nut should be tightened to 17-19 ft. lbs.
Tools Used:
- .004" and .005" feeler gauge
- 24mm socket for valve adjustment caps
- 12mm closed end wrench and 12mm socket
- Straight Screw Driver
- Torque Wrench
Specifications:
- Valve Adjusting screw lock nut should be tightened to 17-19 ft. lbs
- Valves should be adjusted cold with the piston at top dead center on the compression stroke. Less
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Youtube Comments (16)
smallengineshop Says:
Thanks for watching!
bikerbenny Says:
Great stuff buddie I just picked up one for 350 bucks. I'm hoping all the smoke it burns is just unadjusted valves
smallengineshop Says:
Double check your manual, but I think you need to be at top dead center on the compression. If your at TDC on the exhaust stroke your valve's opening might overlap.
mxvsatvforlife8 Says:
I had one question I am trying to adjust the valves on my xr 250 but only the exhaust valves are loose. I have the T mark lined up but just dont know if im on TDC could you please tell me if it sounds like I am. thanks
cdilmore Says:
Great job - thank you!
smallengineshop Says:
Glad you found it helpful and thanks for watching!
Chronicxable Says:
Good vid , i have a 125 and i done my valves completly wrong i done the inlet tappet on the compresion stroke and the outlet on the exhaust stroke (seemed logical at the time) but this just cleared it up for me why my bike isnt running properly
120970able1 Says:
Dam, never thought of that
sheephead007 Says:
great video!! would valves out of sdjustment affect compression when starting?(low compression)
smallengineshop Says:
Thank You! I take the plug out to make it easier to turn over.
trab1925 Says:
Thank you so much for this video! I got my valves adjusted and it went very smoothly! However I used this video in accordance with the manual and it never said to take the spark plug out so I never did and it was fine...
smallengineshop Says:
I do adjust them with the engine cold. Thanks for watching!
johnstonutd Says:
i forgot to say good video! well shot and explained.
johnstonutd Says:
the valve adjustment covers are a good idea, they look like the sump plug on my bike. does your engine have to be totally cold before you make the clearance adjustment? because the clearances will close up when the engine is hot.
smallengineshop Says:
Thanks for watching
pesochekkk Says:
its more work then i was expected. but thx for this video looks very simple.