Page 2 of 2 FirstFirst 12
Results 11 to 17 of 17
  1. #11

    Join Date
    Jul 2005
    Location
    Central North Carolina
    Posts
    3,969
    +1
    567
    Quote Originally Posted by cjk6119 View Post
    Here is another fine tuning trick you can do to your plugs is what's
    commonly called "side gapping" them. This is when you
    take a small file to the ground strap and
    cut it back so it only covers about half of the center electrode.
    This exposes the spark to the open cylinder and combustion
    area more and prevents the shrouding that the full length ground strap tends to do if left unchanged.

    Hope this of some help.
    C J
    when side gaping the sparkplug be care full and do not let the file touch the center electrode only remove material from the ground strap electrode.

  2. #12
    moparguy's Avatar
    Join Date
    Sep 2016
    Location
    Niagara Falls, Ontario
    Posts
    1,825
    +1
    365
    Quote Originally Posted by cjk6119 View Post
    Here is another fine tuning trick you can do to your plugs is what's
    commonly called "side gapping" them. This is when you
    take a small file to the ground strap and
    cut it back so it only covers about half of the center electrode.
    This exposes the spark to the open cylinder and combustion
    area more and prevents the shrouding that the full length ground strap tends to do if left unchanged.

    Hope this of some help.
    C J
    Do you have some before and after pics?

  3. #13

    Join Date
    Nov 2018
    Location
    North Carolina on Jordan Lake
    Posts
    258
    +1
    22
    No I do not have any pictures of the spark plugs. I am not the greatest with computers, I barely get by with the little knowledge I have. Sorry

    Can somebody else answer his request for pictures?

    C J

  4. #14
    NGK LFR7AIX Iridium plugs 10,000 rpm 34 psi supercharged on E85. Never a misfire from these plugs with stock coils. Years now... 1 range colder than OEM. I use them in my bone stock 2009 SHO FX also. Stocker gets the used race plugs from my SS FZR and never a problem. Don't regap. Plug and play outta the box.

  5. +1 by:


  6. #15
    ncdoo's Avatar
    Join Date
    Nov 2007
    Location
    Eastern NC
    Posts
    2,041
    +1
    255
    Quote Originally Posted by 2fast4u View Post
    when you change the original gap on a sparkplug say from .038 (out of the box specification) to say .020 (desired plug gap) once the sparkplug has been run and heated and cooled several times the gap will tend to try to go back to it's original manufactured setting some what. It is a good idea to re check your plug gap from time to time to ensure maximum performance from your engine.
    Never experienced this in thirty years of building engines, maybe I change plugs too often? Here's pic of the side gapping. The plug on the left is before, on the right after. Another tip is indexing the plugs. To index the plugs, make a mark on the outside of the plug with a sharpie in line with the back side of the ground strap. When you screw the plug into the head, you want the mark to point away from where the intake valves.
    Attached Images Attached Images  


  7. #16
    moparguy's Avatar
    Join Date
    Sep 2016
    Location
    Niagara Falls, Ontario
    Posts
    1,825
    +1
    365
    Thanks for the great info


  8. #17

    Join Date
    Nov 2018
    Location
    North Carolina on Jordan Lake
    Posts
    258
    +1
    22
    Does anybody know why these plugs are so expensive? The lfr7a are just copper cores, nothing special about them.
    Is there cheaper options plugs then these?
    I pay about 12.00 14.00 for a set of 8 for my car.

Page 2 of 2 FirstFirst 12

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. what is the gap on my spark plug
    By mike6345 in forum Polaris PWC Performance
    Replies: 2
    Last Post: 05-23-2013, 08:06 AM
  2. spark plug gap?
    By yamahaa in forum Open Discussion
    Replies: 1
    Last Post: 06-14-2011, 06:58 PM
  3. Spark plug gap?
    By North49 in forum 4-Tec Performance
    Replies: 13
    Last Post: 01-09-2009, 07:40 PM
  4. spark plug gap??
    By NOFAERHKY97 in forum Yamaha PWC Performance (2-stroke)
    Replies: 4
    Last Post: 02-01-2008, 01:28 PM
  5. spark plug gap...
    By ugadawg131 in forum Polaris Open Discussion
    Replies: 4
    Last Post: 12-19-2006, 07:46 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •