I have a 1978 Mercury Black Max 200. I'm not getting a spark at the
spark plugs. What's the best way to diagnose the source of the
problem?

Any advice would be greatly appreciated!

-- John

Have you done anything to it? Does the starter turn it over?

--
Bill
Chesapeake, Va


"John Davison" wrote in message
om...
I have a 1978 Mercury Black Max 200. I'm not getting a spark at the
spark plugs. What's the best way to diagnose the source of the
problem?

Any advice would be greatly appreciated!

-- John

Check the coil, points, and the distributor cap.

Jim Rojas


"John Davison" wrote in message
om...
I have a 1978 Mercury Black Max 200. I'm not getting a spark at the
spark plugs. What's the best way to diagnose the source of the
problem?

Any advice would be greatly appreciated!

-- John

"IBNFSHN" wrote in message news:dI6Ac.5514$cj3.849@lakeread01...
Have you done anything to it? Does the starter turn it over?

--
Bill
Chesapeake, Va

I replaced the tilt kill switch, but it did not have a spark before I
replaced the switch. It ran great last summer when it was last
started.

The starter works great.

-- John

(John Davison) wrote in message . com...
I have a 1978 Mercury Black Max 200. I'm not getting a spark at the
spark plugs. What's the best way to diagnose the source of the
problem?

Any advice would be greatly appreciated!

-- John

It was a bad switch box causing my problem. Thanks for the advice!

-- John

Try disconnecting the kill switch. If still no spark, look for a 20 fuse on
the small red wire coming off the solenoid. You may or may not have one. If
that is good, try disconnecting the black/yellow wires on both switch boxes
and check for spark. Those will be the 2nd connection from the left on the
top horizontal row of connections.

--
Bill
Chesapeake, Va


"John Davison" wrote in message
om...
"IBNFSHN" wrote in message
news:dI6Ac.5514$cj3.849@lakeread01...
Have you done anything to it? Does the starter turn it over?

--
Bill
Chesapeake, Va

I replaced the tilt kill switch, but it did not have a spark before I
replaced the switch. It ran great last summer when it was last
started.

The starter works great.

-- John