FJowners.com

General Category => Maintenance => Topic started by: wakdady on January 18, 2011, 10:54:59 AM

Title: Spark plug heat range
Post by: wakdady on January 18, 2011, 10:54:59 AM
A member of another forum i'm on is offering new DPR9EA9's at half off. This is the wrong heat range, our bikes call for DPR8EA9 if i recall.
If i get these, would there be any ill effects?
Title: Re: Spark plug heat range
Post by: mz_rider on January 18, 2011, 11:52:09 AM
Quote from: wakdady on January 18, 2011, 10:54:59 AM
A member of another forum i'm on is offering new DPR9EA9's at half off. This is the wrong heat range, our bikes call for DPR8EA9 if i recall.
If i get these, would there be any ill effects?

In my experience, no. A 9 will run slightly cooler than an 8. Some manufacturers recommend a cooler plug for high speed running. I used to fit cooler plugs in the days when I did long distance tours of Europe with the bike loaded up and in warm weather. At the very worst a plug could foul around town but this is likely only in two strokes.

Stuart
Title: Re: Spark plug heat range
Post by: Travis398 on January 18, 2011, 04:32:29 PM
+1

I can't imagine it would hurt anything, but if it does it is stuarts fault  :rofl:
Title: Re: Spark plug heat range
Post by: billwest on January 18, 2011, 06:54:02 PM
Why not go with iridium plugs?  Never any starting problems, excellent idle, and don't have to look at them for a long time.

Bill.
Title: Re: Spark plug heat range
Post by: Mark Olson on January 19, 2011, 12:20:18 PM
Quote from: wakdady on January 18, 2011, 10:54:59 AM
A member of another forum i'm on is offering new DPR9EA9's at half off. This is the wrong heat range, our bikes call for DPR8EA9 if i recall.
If i get these, would there be any ill effects?

colder plugs allow for high speed runs and hot temps outside. 

If you ride in  hot weather all the time and wind it up they will work great for you.

when the fj is loaded down with weight , like two up and luggage , it will not ping when pulling a hill at speed.
Title: Re: Spark plug heat range
Post by: wakdady on January 19, 2011, 12:34:53 PM
iridiums are pretty expensive and i still have a lot of other stuff to buy. I'll put them in my R6, but he FJ isn't a track bike so regular plugs should do just fine.

Kinda like oil, i don't plan on running synthetic on the FJ because i'll be changing it often enough. OR do some of you have wisdom otherwise?!?
Title: Re: Spark plug heat range
Post by: Pat Conlon on January 19, 2011, 12:38:34 PM
oooooh shit, here we go.... (popcorn)
Title: Re: Spark plug heat range
Post by: wakdady on January 19, 2011, 01:43:39 PM
Quote from: Pat Conlon on January 19, 2011, 12:38:34 PM
oooooh shit, here we go.... (popcorn)

i know how this goes, spark plugs, oil type, etc. can't wait to see what i hear on this forum.
Title: Re: Spark plug heat range
Post by: Marsh White on January 19, 2011, 02:49:46 PM
Quote from: wakdady on January 19, 2011, 12:34:53 PM
Kinda like oil, i don't plan on running synthetic on the FJ because i'll be changing it often enough. OR do some of you have wisdom otherwise?!?

Dino oil is just fine.  The FJ was designed to run on the stuff after all.   Of course there is better, but cheap dino oil changed regularly is just fine.
Title: Re: Spark plug heat range
Post by: Travis398 on January 19, 2011, 04:14:56 PM
I hear any oil is fine so long as it's not amsoil     :diablo:

     (popcorn)
Title: Re: Spark plug heat range
Post by: simi_ed on January 19, 2011, 08:26:05 PM
 :bomb:






:rofl2: