Marine: Boating, Sailing, PWC, GPS and Navigation - V4 Johnson Ign Probs

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61holden
07-31-05, 03:13 AM
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....)

61holden
08-09-05, 01:57 AM
as to dig up their old manual and give me a gap setting for the plugs and more importantly the points??? :alarm:
oldJoe
08-09-05, 08:25 AM
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
08-09-05, 11:03 PM
Have also gone to other website for help, will try it at 20thou and report back.Cheers Chris