Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Registered members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
FJR Motorcycle Forums
Technical & Mechanical Problems
Dual Platinum Spark Plugs
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Yamaha FJR Motorcycle Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Slardy" data-source="post: 1149525" data-attributes="member: 967"><p>I was very disappointed when I learned that the FJR ignition uses a wasted-spark, 2 coil system. For those of your who don't know what this means, 2 of the FJR plugs are firing backwards, i.e. the spark jumps from the ground to the center electrode. Some, like me, were paying a premium for 4 Iridium plugs when 2 of them are firing from the base metal of the plug (probably some kind of S/S) <strong>TO </strong>the center electrode. The OEM NGK is just a good in this ground-spark situation.</p><p></p><p>So I did a little searching for plugs with premium metal on both electrodes and I found a dual Platinum plug (2 ground electrodes and one center electrode-all Platinum). And to boot, the dual ground electrodes have sharp edges facing the center electrode). I installed the plugs about 10,000 mi ago and checked them a few weeks ago in preparation for a long trip. The plugs were in beautiful condition, no crud, no visible metal removal, just a light cocoa color on all 3 electrodes and the insulator.</p><p></p><p>So now I am potentially benefiting the spark performance of all 4 cylinders.</p><p></p><p>Did I notice any improvement? No.</p><p></p><p>Am I suggesting that you use anything but the standard NGK which is very cheap? No.</p><p></p><p>But I thought you might be interested in my little experiment.</p><p></p><p>Slardy</p></blockquote><p></p>
[QUOTE="Slardy, post: 1149525, member: 967"] I was very disappointed when I learned that the FJR ignition uses a wasted-spark, 2 coil system. For those of your who don't know what this means, 2 of the FJR plugs are firing backwards, i.e. the spark jumps from the ground to the center electrode. Some, like me, were paying a premium for 4 Iridium plugs when 2 of them are firing from the base metal of the plug (probably some kind of S/S) [B]TO [/B]the center electrode. The OEM NGK is just a good in this ground-spark situation. So I did a little searching for plugs with premium metal on both electrodes and I found a dual Platinum plug (2 ground electrodes and one center electrode-all Platinum). And to boot, the dual ground electrodes have sharp edges facing the center electrode). I installed the plugs about 10,000 mi ago and checked them a few weeks ago in preparation for a long trip. The plugs were in beautiful condition, no crud, no visible metal removal, just a light cocoa color on all 3 electrodes and the insulator. So now I am potentially benefiting the spark performance of all 4 cylinders. Did I notice any improvement? No. Am I suggesting that you use anything but the standard NGK which is very cheap? No. But I thought you might be interested in my little experiment. Slardy [/QUOTE]
Insert quotes…
Verification
Post reply
FJR Motorcycle Forums
Technical & Mechanical Problems
Dual Platinum Spark Plugs
Top