Antique Engines and Old Iron
[Home] - [HELP] - [Forums] - [Groups] - [Classified Ads] - [Subscribe] - [Books] - [Sponsors] -

Go Back   SmokStak > SmokStak® Antique Engine Community > Magnetos, Ignition Coils and Spark Plugs
Forgot Password? Join Us!


Magnetos, Ignition Coils and Spark Plugs Discussion about magnetos, buzz coils, spark plugs, ignitors and low tension coils.

Magnetos, Ignition Coils and Spark Plugs

Onan J120-S/967F Engine w/WICO X Mag - spark plug wires

this thread has 1 replies and has been viewed 180 times

Thread Tools Display Modes
Old 10-03-2019, 01:13:52 PM
matt sommer matt sommer is offline
Join Date: Oct 2019
Location: Eagle River, Alaska, USA
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Default Onan J120-S/967F Engine w/WICO X Mag - spark plug wires

Greetings from Eagle River, Alaska. Yes, it's getting cold, 35F now. I have recently procured a cold war relic genset. I'm trying to assess (cheaply) whether or not this unit is worth the time and effort to put into service as back up power for the old homestead. It's sat for at least 30 years, starts very difficult, but runs smooth when it decides to start. My question is where can I go to get replacement spark plug wires similar to oem?(and assoc.ign parts) Current ones are deteriorated and checked. The champion H8 plugs that are in the unit have to be ordered, I guess they are a slow mover. I spent a few hours looking around, the mountain of info that one has to sort through is daunting to say the least. Thank you for your time and efforts.
Reply With Quote
Sponsored Links
Old 10-04-2019, 02:02:40 AM
cobbadog cobbadog is online now
Join Date: Aug 2009
Location: Coopernook. N.S.W. Australia
Posts: 1,947
Thanks: 3,482
Thanked 881 Times in 585 Posts
Default Re: Onan J120-S/967F Engine w/WICO X Mag - spark plug wires

Any HT lead (8mm/5/16") made using a copper wire core will do the job for you, unless you have an aircraft HT lead then it's down to the local airport and find a service man.

Do not use a carbon cored HT lead, it does not conduct the spark as well and harms the magneto.

In the mean time sounds like the points need to be cleaned and then cleaned again, check the gap and the igniton timing. Some engines run well when the spark timing is out a little bit but cranky as to start.
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
Hol-Gar GS107-AC 734 and the engine tag says Onan J120-S/967F Daverepair Onan Generators 36 10-17-2019 11:01:58 PM
Onan MCCK spark plug wires OB8988 Onan Generators 0 07-31-2017 09:32:24 AM
Onan Holgar genset J120-S/967F skippy2235 Onan Generators 5 03-24-2016 06:12:19 PM
Help- exorbitant pricing on a manual J120-S/967F JD Logan Onan Generators 34 11-12-2011 02:55:39 PM
j120-s/967f Onan dirtrackfan Onan Generators 0 03-24-2006 11:39:18 PM

Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 01:50:15 AM.

Smokstak and Enginads site search!

All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark - A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2019 by Harry Matthews P.O. Box 5612 - Sarasota, FL 34277