spark plugs

[gregvhen]

Can someone who actually knows, post a link for spark plugs that are right for the GS. i read mine, and when i go to look online theyre always listed differantly.  Not expensive plugs, just somethin cheap to get me by for now.  Im not yet ready for "the buy the best quality now so you dont have to replace so much later" as i am short on cash.

[jeremy_nash]

I just went to advance auto and told them what they were for, and they hooked me up with some ngk's for a few bucks a piece

[DoD#i]

Per Clymer:

ND (NipponDenso) and NGK being brands, of course.

Stock is ND X24EPR-U9 or NGK DPR8EA-9

Hotter is ND X22EPR-U9 or NGK DPR7EA-9

Cooler is ND X27EPR-U9 or NGK DPR9EA-9

Gap set to 0.7-0.8mm (28-31 thousandths of an inch)

[BaltimoreGS]

NGK DPR8EA-9,  about $2 a piece at most auo parts stores.

-Jessie

[gregvhen]

Per Clymer:

ND (NipponDenso) and NGK being brands, of course.

Stock is ND X24EPR-U9 or NGK DPR8EA-9

Hotter is ND X22EPR-U9 or NGK DPR7EA-9

Cooler is ND X27EPR-U9 or NGK DPR9EA-9

Gap set to 0.7-0.8mm (28-31 thousandths of an inch)

Do this mean that if i want a hotter or colder spark i get the one you listed, or something else? why would I want a colder spark does that help somehow?

[ineedanap]

You'd want a hotter plug if you're only doing very short trips and prematurely fouling plugs from carbon buildup.  

You'd want a colder plug if you're racing.  A plug electrode can get so hot in racing that it can light off the mixture from heat alone.  This can cause preignition and detonation.  It kind of becomes like a diesel glow plug!

Most people just stick with the stock heat range.  

[galahs]

i put ngk iridium pugs in mine. They work fine.
http://gstwins.com/gsboard/index.php?topic=32542.0


Would I do it again? Probably not. Cost too much and no noticeable improvement.

[DoD#i]

You'd want a hotter plug if you're only doing very short trips and prematurely fouling plugs from carbon buildup.  

You'd want a colder plug if you're racing.  A plug electrode can get so hot in racing that it can light off the mixture from heat alone.  This can cause preignition and detonation.  It kind of becomes like a diesel glow plug!

Most people just stick with the stock heat range.  

+1

Also, it's one of the many things you can adjust in fine-tuning, a point you are still far from with the bike not running. Just get the stock range. If you found that you had plugs that looked like they were running hot, you could use a cooler plug rather than fiddle with the mixture. If you have plugs that seem to be running cold, you could use a hotter plug. Mostly, folks stick with the one plug and fiddle with the mixture, but if there is some adjustment still needed (or if you have riding pattern/use issues as above), the plugs are one more variable that can be fiddled with.

[kml.krk]

I also got NGK Iridiums.
Would I do it again? The thing is that I supposedly will never have to buy spark plugs again   

[gsJack]

Setting gap to 0.7-0.8mm (28-31 thousandths of an inch) from Clymer above is an old outdated spec, it was changed to .035" gap for all years now per NGK.

http://www.ngksparkplugs.com/part_finder/motorcycles/step4.asp?id=2379&type=reg

http://www.ngksparkplugs.com/part_finder/motorcycles/step4.asp?id=2378&type=reg

http://www.ngksparkplugs.com/part_finder/motorcycles/step4.asp?id=2380&type=reg

[gregvhen]

http://www.bikebandit.com/autolite-resistor-spark-plug?mg=3614&t=1

would these be good plugs, it says desinged for lean sharp sparking. and i figure well the GS is typically lean, so these plugs should be perfect. right?