20 Most Recent 1986 Mazda B-Series Questions & Answers

If it's carbureted, you have an idle speed screw that can be adjusted. Here's a picture.

I didn't know anybody even used carburetors after 1982. By that time, it was cheaper and easier to meet clean air standards with fuel injection, and if done right, fuel injection provides better performance anyway. You can tweak performance with different manifolds, improved exhaust piping and possibly a turbocharger. There may be a "high-performance" ROM chip for your engine computer; this permits a greater fuel delivery under acceleration conditions.

Note: some smaller engines used a single throttle body injector rather than one for each cylinder. Theoretically you could replace this with a carburetor, but modifying the engine controls to work correctly with it would be a nightmare.

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If the battery is in good shape with a full charge, and all that happens is a click when trying to start, suspect a battery cable issue. Make sure the cables are clean and tight at the battery as well a tight at the starter. Make sure the ground cable from the battery to the engine is clean and tight supplying a good ground as well

There could be a number of things causing your problem...I really need to know the mileage.?..Has it been serviced and tuned up regularly...?...Does it happen up a hill or down a hill..?...Does it happen Everytime you drive...Does it over heat..?.Did you check battery cables for tight connection...?.The list goes on and on......However apparently it dies when it reaches operating temperature...Please send more info if possible....Thank You..

EASY FIX COME BY ONE DAY.

I have a similar problem. My engine shuts down after about five minutes.. Measuring the current into the distributor(ignition) reveals a jump in current from 3 to 40 amps. The power lead is red on white and the ignition lead is yellow on black and goes into a connector under the dash where the ignition wire changes to white on black. Three different wiring diagrams give no clue to how this problem is caused. Also, the starter is good for only a few turns after the engine warms up.

What size of motor and I'll see if I can post it for you.

Remove timing belt cover, hope this helps on how to align the cam and crank gear's.

if plenty of fuel like you have stated must be ignition plugs leads htunit or distributor

When your pump is getting close to failure. It will begin to drip or leak from weep hole.

Try replacing fuel filter, sounds like it's starving for fuel

please let me know if you have questions.