Livorsi tachs acting strange - need help please
05-07-2009, 08:54 AM
#41
That is a good idea. also is there any chance that you went from a resister type spark plug to a non resister? I am sure that you are not running the same plugs if you went from NA to blown
http://www.ngk.com/sparkplug411.asp?...esistor&mfid=1
http://www.ngk.com/sparkplug411.asp?...esistor&mfid=1
Platinum Member
06-08-2010, 01:15 AM
#45
Registered
Join Date: Apr 2005
Location: www.bajaboatowners.com
Posts: 2,957
Likes: 0
Received 1 Like
on
1 Post
I did a motor swap this winter as well went from 496's to 500efi's and now my starboard tach is doing the same thing. Jumps around after 3000. It's really bad up around 5000
07-04-2010, 11:24 AM
#46
Registered
Cure for Livorsi Tach Problem
07-22-2014, 08:51 PM
#47
Registered
Join Date: Jul 2010
Location: Osage Beach, MO
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Sorry to bring back such an old thread....
I am having this same issue. Tachs work great at idle....once rpm goes above 2000 they basically go back to zero. I grounded the distributor cap hold down screw today. No help. Any ideas??
1997 fountain fever 38
Twin 540s that made 750hp
I am having this same issue. Tachs work great at idle....once rpm goes above 2000 they basically go back to zero. I grounded the distributor cap hold down screw today. No help. Any ideas??
1997 fountain fever 38
Twin 540s that made 750hp
