1999 Johnson 150 Sparkplugs - Q or Not

[makaboy]

I have a 1999 Johnson 150 HP and I want to know if running the Champion Q (resistor?) sparkplugs or not running them will effect the electronic ignition system? There is a reference in the Johnson manual that seems to indicate by not using the suppresor plugs (Q....) will effect the ignition, is this true?

 

[jegervais]

Re: 1999 Johnson 150 Sparkplugs - Q or Not

The "Q" plugs are a supressor, not really a resistor. And yes, not using them can effect the operation of the ignition system. Typically the interference can cause the ignition system to "miss" or make it go into S.L.O.W. mode (which is an overheat self-protect feature).<br /><br />-John

 

[makaboy]

Re: 1999 Johnson 150 Sparkplugs - Q or Not

^

 

[ob]

Re: 1999 Johnson 150 Sparkplugs - Q or Not

150 what.Is this a ficht engine or VRO?

 

[makaboy]

Re: 1999 Johnson 150 Sparkplugs - Q or Not

VRO with carbs

 

[ob]

Re: 1999 Johnson 150 Sparkplugs - Q or Not

Engine calls for QL78YC Champions gapped at .030".