Organizing all the essential Honda XR650R information!
Destroyed XR650R Piston and Valves
The top end of the Honda XR650R is very robust and long living. However, if you push it too hard you can eventually hit a wall. The pictures below are from a motor that was running a stage 2 cam. This cam puts the valves VERY close to the piston when fully open. When the cam chain stretches a bit then Kablammo!
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Honda XR650R Gearing Calculator – What Gearing to Use!
about 2 years ago - 2 comments
Selecting the proper final drive ratio for the XR650R is important for optimum performance and comfort on your selected terrain. The stock gearing is a 14 tooth on the front sprocket and a 48 tooth on the rear sprocket.
Many owners dual sporting their bike will run a 15 tooth front sprocket and will drop a More >
Have a Noisy XR650R?
about 2 years ago - No comments
The XR650R is a fairly smooth running motor but is known to have a variety of rattles and ticks. If your motor seems to be making a little extra noise lately the cause could be one of the below:
notes from JM-2008
Worn Cam Chain
Historically larger XR,s (old 350’s/400/500/600/650) use a ‘Morse Hy-Vo’ type cam chain.
Looks like More >
Clutch Bushing Inspection
about 2 years ago - No comments
From time to time it’s a good idea to inspect your clutch bushing for wear. Wear can create slop in the clutch and over time significant damage to the basket. These parts aren’t known to wear at any accelerated rate, but next time you replace your clutch plates make a point to pull off the More >
Magnetic Oil Drain Plugs
about 2 years ago - No comments
A couple manufacturers make a magnetized oil sump plug for the XR650R. The factory plug is not magnetized, however many competing bikes (such as the KTM) come stock with a magnetized plug. The magnetization picks up any small metallic debris from your bikes oil – and can be used as a great indicator of troubling More >
Honda XR650R Motor Illustration – Cutaway View
about 2 years ago - No comments
I love illustrations like this. What a hansom motor!
Honda XR650R Right Crankcase Cover or Clutch Cover – Parts Fiche
about 2 years ago - No comments
Parts fiche for the Honda XR650R Right Crankcase Cover or Clutch Cover.
Honda XR650R Left Crankcase Cover or Stator Cover – Parts Fiche
about 2 years ago - No comments
Parts fiche for the Honda XR650R Left Crankcase Cover or Stator Cover.
Honda XR650R Gear Shift Drum and Fork – Parts Fiche
about 2 years ago - No comments
Parts fiche for the Honda XR650R Gear Shift Drum and Fork.
Honda XR650R Valve Cover / Cylinder Head Cover – Parts Fiche
about 2 years ago - No comments
Parts fiche for the Honda XR650R Valve Cover or Cylinder Head Cover.
about 1 year ago
I wonder how old your camchain was? “stretched a bit”. Was it a new camchain along with the stage 2 cam install? How long from when put in the cam till you had the problem?
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