77 Johnson 70 horse coil dilemma

Lrdrlker

Seaman Apprentice
Joined
Jul 28, 2016
Messages
31
I have an issue with my motor. It runs rough and is difficult to get into drive but it DOES get up on plain sometimes but after a LOOONNNGGG and SLOW climb! I rebuilt the carbs, swapped out the reed valves and did my best at a "Link & Sync" but it still runs rough. I decided to check my coils and discovered that the readings are consistent BUT not anywhere near what the chart recommends! My readings are 1260,1260 and 1350. The chart recommends 200-400. My readings are way too consistent to be a mistake. These are the original coils. One has a hairline crack but other than that they are in great condition! What do I do? Scrap these 3 consistent coils and go by the chart or ignore the chart and trust my coils? CheersScreenshot_20210712-183603.png20210713_070453.jpg
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Unfortunately, we cannot see the column headings on your chart. But at a glance, at least, it seems to be saying 200-400 for the trigger coils (black/white to white/black). Or is that what it is saying?
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,074
The trigger coils and the actual ignition coils are NOT the same thing !
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Trigger coils (sensor coils) are on the timer base.
 
Top