Turn it counterclockwise. If you are having problems getting the plug out of the rotary engine, then do not force the plug out. You can try spraying penetrating oil around the plug and letting it set overnight, then turning the plug back and forth until it finally comes out, but! Be very careful as it is very easy to strip the threads. To be safe, I suggest you take it to a professional for removal.
According to Kelley Blue Book, the estimated value of a 1990 Mazda Miata in excellent condition with approximately 150,000 miles on it is $2,400.
The 1990 model of Miata came with a 1.6L DOHC engine and produced around 120 horsepower.
http://www.batterymart.com/p-12v-mazda-miata-battery.html this should help
trunk right side.......
1.6 Liter Straight 4
1 Quart
yes, driver only www.MX5unleashed.com
1990 2365 lbs. 1994 2490 lbs.
Unfortunately, a 1997 Toyota Supra engine and trans would not fit into a 1990 Mazda Miata. The Supra engine and transmission are unable to be mounted correctly within a Miata to make them fit.
There is a great website that has many listings for used 1990 Mazda Miatas. The website is Lemonfree.com and they have several listings for the 1990 Miatas.
See http://www.miata.net/garage/miata_radio_removal.html
1.6L Engine = 3.6 quarts