Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1986 Mazda RX-7 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Fast Idle Operation
- For this check the engine and throttle chamber must be at 77°F (25°C). For proper fast idle operation the matching mark on fast idle cam must be aligned with center of cam roller.
- If the matching mark and center of the cam roller do not align, turn the cam adjusting screw until proper alignment is obtained. See Fig 1
. With matching mark aligned, check clearance between primary throttle valve and wall of throttle bore. Clearance should be .016-.020" (.4-.5 mm). Adjust with the fast idle adjusting screw. See Fig 1
.NOTE: Fast idle adjustment is unnecessary unless it has been tampered with.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.