What is the factory gap for a 02 f4i? I'm using the ngk reccomended plugs.

 

should be in the user's manual...then again, if you don't have one....

 

The F4 is 0.80 -0.90 mm. The F4i is probably the same.

 

From the manual it shows/says that the bike uses Iridium plugs. They have a pointy electrode.

All the manual says is:

Use a wire feeler guage. NOT a regular flat type.

Check the gap with a 1.0mm (0.04in) plug gauge. If it doesn't go thru than the plug is good. If it does, replace plug.


If electrode is contaminated, replace plug

If electrode is rounded, replace plug.


DO NOT ADJUST GAP, if gap is out of specifications, replace with new one.

 

Here's the manual download


http://www.gofastvideo.com/gallery/i...op-manual.html


It says video, but its really the file.