trunk right side.......
The battery is a Mt-MX5. This is a Interstate battery part#. fits 1990-2008 Mazda Miata. Go to interstatebattiers.com to find a dealer near you.
On a 1991 Miata, the battery is in the trunk. It is probably the same on the 1990.
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.
1.6 Liter Straight 4
1 Quart
yes, driver only www.MX5unleashed.com
There is a latch in the center console between the seats. Pull it, and it should open.
The best OEM-style battery for a Mazda Miata is the WestCo battery, made specifically for the car. They are of compact size and sealed, since they are located in the trunk. Note that all of the Miata sealed batteries are have small hoses connected on the _ and - sides of the battery. This allows any battery fumes to be ventilated out of the car. An aftermarket sealed battery MAY have these small ports in a different location. You'll just need to go to your local Autoparts store to purchase an extra 1-2' so you can replace the old tubing. Should cost no more than a few dollars. View the related links below for WestCo. This answer is applicable for 1990-2005 Mazda Miatas.
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.