xr600r timing

i need to put my xr back together.....which way round does the cam go,lobes down or up????many thanks

i need to put my xr back together.....which way round does the cam go,lobes down or up????many thanks

It doesn't matter. As long as the crank is at TDC and the lines on the cam sprocket are in line with the head, you are good to go. Just make sure and verify a few times that everything is right before going any further. It's real easy to get it one tooth off. After you get it on there, I like to turn the engine a few times to be sure that everything is lined up correctly.

Later in the process when you put the head cover on, it's easier if the lobes are down.

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