My friend who bought my green car and he tookit to the shop and put it on the machine and they said the number 2 cylinder is bad. How easy of a fix is it?

Fix a cylinder?

Depends on what is wrong with it. The cylinder itself is a hole. It'* what is inside the cylinder that needs fixed. Piston rings, rod, pin, valve...

Yeah..Is it just a misfire or bad compression or what?

25% bad compression

As mentioned earlier, it depends what the problem is. Usually it is a bad valve or worn rings that cause low compression. Valve is least expensive, rings are more. And if the problem is a scored cylinder wall, even that can be repaired for about $100- $150 with a sleeve after the block is removed, stripped and delivered to a reputable shop. Putting it all back together however will be quite costly owing to the need to replace a lot of expensive gaskets and the considerable labor involved. If he does all his own work, and only repairs what is damaged, he could maybe fix a scored cylinder for somewhere around $500 or $600.

Not a pretty picture.

Do a wet/dry compression test. If compression improves wet (squirt oil in the sparkplug hole), it'* the rings that are bad. If it doesn't change, it'* a valve.

You'll need to pull the engine for any machine work on the block, but if it'* a ring, it might be possible to leave the block in to take out the affected piston/ring. It certianly isn't easy and not something I would recommend for you to do.

so pretty much, he would just have to take it to the shop and do it or get another block?

If the block and head is fine, all you need is a new piston ring. However that'll turn into a rebuild on half of the motor atleast.

If the block is damaged, it may be beyond repair depending on what happened. Scorring is the major one here, and that can be resurfaced, or bored out somewhat.

As mentioned above, the valves could not be sealing right as well. Replacing the head would be cheaper then machine work as well.

Do the wet dry test like mentioned, that'll help a lot.

if its bad its cheaper to put a Junkyard engine in