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Shouldn't be a problem

Remove all three plugs and hook up compression gage to one cylinder. Hook jumper cable - to anywhere on engine block and + to starter motor terminal. Hook other end of - cable to battery - terminal and touch the other end of the + cable to the + terminal for a second or two which will allow engine to crank sufficiently to register max compression. You should then repeat for the other cylinders. Depending on the pressure gage you are using, you should see about 110psi on all three. Don't be concerned if it is as low as 100psi as long as they are all the same (within 5psi of eachother).
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