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i want to cam my 70

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i have a 2002 xr70 that i would love to put a big loopy cam into. i am no newb when it comes to engine work, but to be honest, ive never opened up one of these horizontal four strokes. what options do i have for a cam? what gaskets and other things will i need for it? this is just a quick little project that id like to do since its getting cold out and im not gonna be using the bike as much.

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You have to remove the rocker arms just long enough to take out the old cam and put in the new one, they will not clear the cam end bearing.

As long as you set the piston at TDC, with the flywheel and cam sprocket marks set right, make the cam swap and bolt everything back together, you just need to put the cam sprocket back right and double check the marks.

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