My 715 (12v) is behaving badly!
It tends to cough and hesitate on acceleration and there is often pre-ignition on shut-off. Sometimes there has been backfiring through the carb.
Gladiator distributor and coil are new with Pertronix ignition + wires + plugs; gas tank was cleaned and reinstalled with 3 filters in line; supplemental fuel pump; and finally a rebuilt carb which was reinstalled today.
Yet she still coughs when trying to accelerate.
Timing is where it should be. Wondering if the timing chain is stretched but that doesn't show up with a timing light.
Working with a good mechanic when i can.
Picked up some pointers on another thread;
i'll try to diagnose for a vacuum leak and/or ohc belt slippage.
Input on how to do those would help!
Dave