Alright, I've never done anything with rotary engine or anything before, but I just bought an engine out of a 1986 NA Rx-7. The plan is to put the engine into my 1989 Mazda B2600i 4x4. I've got pretty much everything figured out, all the mounts and stuff, computer, wiring, etc. All that is figured out, but the engine doesn't really run, or at least not very well.

Here is a video of what it does:
http://www.youtube.com/watch?v=RKQ2iRSQu8Q

I was originally planning on pulling it all apart and doing a complete rebuild, but rebuild kits are so expensive!

Any help of ideas would be great. Thanks.