ok so i got a engine compression tester and all i kno is u take out one of the plugs and replace it with the tester. so do i have to test each cylinder? are the numbers sopposed to be 1.2-1.6 bar at idle and 2 bar at 2k rpm?
also how am i going to get the tester into the plug hole? the hole is like 8 inches deep

 

You need a tester with a long hose extension to get down into the hole.

You had better read up on the process to do this test.I can tell from your post that you have no idea how to do a compression test.

Buy a haynes manual and follow the instructions. You remove all the plugs, unplug the fuel relay, block the throttle open, and turn the engine over. The test needs to be done with the engine up to normal temp, etc, etc, etc.

The $15 dollars for a haynes manual will give you invaluable information, and all the knowledge you need to do a test like this properly.

good luck!