Welcome to the DoItYourself Forums!

To post questions, help other DIYers and reduce advertising (like the one on your left), join our DIY community. It's free!

V4 Johnson Ign Probs


61holden's Avatar
Visiting Guest

Posts: n/a

07-31-05, 02:13 AM   #1  
61holden
V4 Johnson Ign Probs

I have recently picked up a V4/ Hydro electric Gearbox of dubious parentage( we don't know wot size it is, no chassis plate etc.) It has twin points , and is set up on a car coil system, however when running if I pull the leads off 1 and 3 and hold them at the edge of the rubber caps the said cylinders run properly, any suggestions? (I'm on my second dizzy cap, and running out of patience....)

 
Sponsored Links
61holden's Avatar
Visiting Guest

Posts: n/a

08-09-05, 12:57 AM   #2  
61holden
Would anyone be so kind

as to dig up their old manual and give me a gap setting for the plugs and more importantly the points???

 
oldJoe's Avatar
Member

Join Date: Nov 2004
Posts: 74

08-09-05, 07:25 AM   #3  
Point and plug gaps

Johnson manual for 1956 - 1970 for 1.5 hp to 40 hp indicates all plug gaps at .030 in and all point gaps at .020 in.

Probably same for your larger engine.

You might try this site for good diagnostic info on your Johnson You should indicate the hp.
http://www.marineengine.com/cgi-bin/discus/discus.cgi

Good Luck

 
61holden's Avatar
Visiting Guest

Posts: n/a

08-09-05, 10:03 PM   #4  
61holden
Many Thanks oldjoe

Have also gone to other website for help, will try it at 20thou and report back.Cheers Chris

 
Search this Thread