Spark plug heat range

[wakdady]

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?

[mz_rider]

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

[Travis398]

+1

I can't imagine it would hurt anything, but if it does it is stuarts fault 

[billwest]

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.

[Mark Olson]

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.

[wakdady]

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?!?

[Pat Conlon]

oooooh shit, here we go....

[wakdady]

oooooh shit, here we go....

i know how this goes, spark plugs, oil type, etc. can't wait to see what i hear on this forum.

[Marsh White]

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.

[Travis398]

I hear any oil is fine so long as it's not amsoil     

     

[simi_ed]