Welcome to BoatForumz.com!
FAQFAQ      ProfileProfile    Private MessagesPrivate Messages   Log inLog in

No Spark from '78 Merc Black Max 200?

  
   Boat US (Home) -> Boat General Discussion RSS
Next:  21' runabout on Lake Michigan???  
Author Message
John Davison1

External


Since: Jun 15, 2004
Posts: 16



(Msg. 1) Posted: Wed Jun 16, 2004 8:50 pm
Post subject: No Spark from '78 Merc Black Max 200?
Archived from groups: rec>boats (more info?)
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

 >> Stay informed about: No Spark from '78 Merc Black Max 200? 
Back to top
Login to vote
IBNFSHN

External


Since: May 30, 2004
Posts: 35



(Msg. 2) Posted: Thu Jun 17, 2004 12:42 am
Post subject: Re: No Spark from '78 Merc Black Max 200? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
Have you done anything to it? Does the starter turn it over?

--
Bill
Chesapeake, Va


"John Davison" <jdaviso1.RemoveThis@my-deja.com> wrote in message
news:6768b607.0406161650.6632703d@posting.google.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<!-- ~MESSAGE_AFTER~ -->

 >> Stay informed about: No Spark from '78 Merc Black Max 200? 
Back to top
Login to vote
Jim Rojas

External


Since: Apr 30, 2004
Posts: 26



(Msg. 3) Posted: Thu Jun 17, 2004 4:46 am
Post subject: Re: No Spark from '78 Merc Black Max 200? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
Check the coil, points, and the distributor cap.

Jim Rojas


"John Davison" <jdaviso1 DeleteThis @my-deja.com> wrote in message
news:6768b607.0406161650.6632703d@posting.google.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<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: No Spark from '78 Merc Black Max 200? 
Back to top
Login to vote
John Davison1

External


Since: Jun 15, 2004
Posts: 16



(Msg. 4) Posted: Thu Jun 17, 2004 11:29 am
Post subject: Re: No Spark from '78 Merc Black Max 200? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
"IBNFSHN" <Bhile.RemoveThis@cox.net> 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<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: No Spark from '78 Merc Black Max 200? 
Back to top
Login to vote
John Davison1

External


Since: Jun 15, 2004
Posts: 16



(Msg. 5) Posted: Thu Jun 17, 2004 7:40 pm
Post subject: Re: No Spark from '78 Merc Black Max 200? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
jdaviso1 RemoveThis @my-deja.com (John Davison) wrote in message news:<6768b607.0406161650.6632703d RemoveThis @posting.google.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<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: No Spark from '78 Merc Black Max 200? 
Back to top
Login to vote
IBNFSHN

External


Since: May 30, 2004
Posts: 35



(Msg. 6) Posted: Thu Jun 17, 2004 11:12 pm
Post subject: Re: No Spark from '78 Merc Black Max 200? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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" <jdaviso1 DeleteThis @my-deja.com> wrote in message
news:6768b607.0406170729.5e405a5f@posting.google.com...
 > "IBNFSHN" <Bhile DeleteThis @cox.net> 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<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: No Spark from '78 Merc Black Max 200? 
Back to top
Login to vote
Display posts from previous:   
   Boat US (Home) -> Boat General Discussion All times are: Pacific Time (US & Canada) (change)
Page 1 of 1

 
 You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



[ Contact us | Terms of Service/Privacy Policy ]