How can i adjust the clutch in a honda prelude si 1991

with a probe light get into back of dash board and see where power is or isnt

in the fuel tank

usually the freeze plugs are located on the engine block underneith the heads.

Probably the Vehicle Speed Sensor (VSS). Cheap and easy to change (see ebay), once found! Probably on top of gearbox, to rear.

You may need to check if you have lost your refridgerant. It is possible that it leaked out.

Hi you are going to need an idle air control motor. This motor/sensor is what holds your idle at the correct rpm at idle.

Under hood, passenger side, front engine area, mounted in distributor

This possible solution is also weird. I have a '91 Prelude Si also- GREAT car. Do you have anti-lock brake option? If you do, check the fluid level in the anti-lock reservoir. My Prelude did this revving thing twice, and while checking under the hood to see what the heck was going on, I discovered the brake fluid level was very low. I topped it off, and after giving up trying to figure what was wrong, I restarted the car, and no revving problem. I don't know why this is, but it worked for me twice. Countrycurt0

leaking

Go to your nearest Autozone or other parts house and buy an inexpensive plug gapper. I gap the Honda plugs at .045 .