| Author | Message | ||
     Bitbear |
Is that a crock -- or something worth considering? The accessories section of the Buell Web site shows something like "platinum," "gold," and "high-perfomance" plugs. Anyone have any experience with these things? | ||
| Xgecko |
Platinum plugs have been around for years though I prefer Iridium, I'm not a fan of Splitfire but that's my opinion YMMV | ||
| Ezblast |
Concur! | ||
| Gearheaderiko |
I like Splitfires (I've seen the performance difference). There is a difference in spark plugs, so yes there are high performance spark plugs. | ||
| Carlost |
In my opinion, once you get your bike running right and you're done mucking with jetting, ignition, etc., anything you can do to cut down on the number of times a sparkplug goes in and out is a good thing. I've seen guys that liked to "read" their sparkplugs a lot and sure as death and taxes wound up at the machine shop for a Helicoil insert  To that end, platinum or iridium plugs are great because they stretch the maintenance interval. NGK recommends DCPR8EIX for the Blast and I believe that is the right range...NGK finally got it right. You can get these reasonably priced from your NAPA or specialty auto parts store. For some reason NGK iridiums are cheaper than the more disseminated BLING NDs. Myself I'm a big NGK fan. Here's a very handy part finder from NGK http://www.ngksparkplugs.com/apps/motorcycles/ (Message edited by CarlosT on September 02, 2006) | ||
| Xgecko |
NGK still isn't showing the correct plug number try NGK #DCPR9EIX-9 the one you listed is a bit hot (Message edited by xgecko on September 03, 2006) | ||
| Ezblast |
Concur | ||
| Carlost |
Back in the olden days, Buells (twins) called for 6R12s which equated to DCPR7E. They eventually figgered out that this was a bad idea and went to the colder 10R12s which I could never quite figure out if they were one or two jumps colder. BTW DPR is not the correct NGK code. It's supposed to be DCPR which signifies the littler 3/4" head vs the 13/16" for DPR. The DCPR is easier to install in Buells and an absolute must in other applications like my Aprilia. Do you concur, EZ?  (Message edited by CarlosT on September 03, 2006) | ||
| Carlost |
This is the way I remember it: Original Wrongly Spec'd Buell Plug (Based on HD XL Recommendation) HD 6R12 Champion RA8HC NGK DCPR7E Autolite 4164 Denso IXU22 Colder (And Eventually Correct Buell Plug) HD 10R12 Champion RA6HC NGK DCPR8E Autolite 4163 Denso IXU24 Colder yet HD ? Champion RA4HC NGK DCPR9E Autolite 4162 Denso IXU27 So maybe all these years it's never been clear to me if the HD 10R12 is one or two ranges colder than the original 6R12 but NGK did fix its website. Note that the Autolite catalog still calls for 4164 for the Blast and 4162 for the Buell twins so there's still a lotta confusion out there. Some sparkplug manufacturers call for a hotter plug for the Blast. | ||
| Carlost |
Do you concur, EZ? | ||
| Ezblast |
The 8 value is a bit hot, lol - stick with those plugs that are equivelent to the 9 value - the last group on your list is the correct value. GT - JBOTDS! EZ  | ||
| Bitbear |
Posted on Wednesday, August 22, 2007 - 06:06 pm: -------------------------------------------------- ------------------------------ I've decided to try a NGK DCPR9E in my '02 Blast. The HD 10R12 has been fine but during the hot summer months, the engine gets hot enough that, like many of us, I get a bit of detonation on taking off and hard acceleration. I'm ready to drop it in but I have no idea of what the correct gap should be. Does the plug come with the right gap? What should it be? EZ, or anyone, got any advice or can you direct me as to where to find the info? | ||
| Jimrich |
Bitbear, I just put a DPR9EA-9 in my 05. Plug gap .035 from the service manual. Others have said .038-.043, the larger the gap the larger the spark, vice versa... No NGK Plug is gapped from the factory: See (Gapping) http://www.ngksparkplugs.com/techinfo/spark_plugs/ installation.asp?nav=31300&country=US (Message edited by jimrich on August 22, 2007) | ||
| Gearheaderiko |
   Understand that comments posted on the discussion forum represent only the views of their authors and in no way may be construed as representing the views of BadWeatherBikers.com, its custodians, or its owner(s) of record. Users will never hold BadWeatherBikers.com, its custodians, or its owner(s) of record responsible for any content posted by users of the discussion board. (Message edited by gearheaderiko on August 25, 2007) | ||
| Ezblast |
 | ||
| Bitbear |
Thanks, all. For what it's worth,I am aware of the manual's specs and techniques, and have always followed them. The reason I asked, is because I didn't know if the gap spec would also apply to the cooler plug. Sounds like you, Erik and EZ say it does. | ||
| Gearheaderiko |
Sorry, gap is the same. Some higher priced plugs do come gapped from the factory as trying to gap them could damage the plug. It will usually say this on the box or check the manufacturers website. Understand that comments posted on the discussion forum represent only the views of their authors and in no way may be construed as representing the views of BadWeatherBikers.com, its custodians, or its owner(s) of record. Users will never hold BadWeatherBikers.com, its custodians, or its owner(s) of record responsible for any content posted by users of the discussion board. (Message edited by gearheaderiko on August 25, 2007) | ||
| Jimrich |
Erik, do you know why the gap change between the 02 and the 05?... | ||
| Gearheaderiko |
No. But it would be great if you could copy that page and post it. It would also be good to find out when that change was made, does it continue through 08, or is it a mistake. Understand that comments posted on the discussion forum represent only the views of their authors and in no way may be construed as representing the views of BadWeatherBikers.com, its custodians, or its owner(s) of record. Users will never hold BadWeatherBikers.com, its custodians, or its owner(s) of record responsible for any content posted by users of the discussion board. (Message edited by gearheaderiko on August 25, 2007) | ||
| Slowhand96 |
Hi All My blasts are 2000 and 2002 but for some odd reason, probably an over-itchy ebay trigger finger, I just happen to have a 2006 Blast owners manual. On page 25, table 9, It calls for a 10R12 plug gapped at 0.038- 0.043. | ||
| Buellistic |
The reason the FACTORY SERVICE MANUAL says replace the SPARK PLUG every 10K is so the Dealers can sell you'll a lot of SPARK PLUGS !!! To a point, putting in a COLDER SPARK PLUG will help the OEM "JETTING" as it is too lean from the FACTORY ... Running your engine LEAN will make it run real fast to a point ... To a point, putting in a HOTTER SPARK PLUG will help if your JETTing if it is a little on the RICH side ... The non-adjustable are gaped, "BUT" are they gaped correctly ??? How would you know if you do not know how to check the gap or even adjust it ??? SPELL CHECK is needed here !!! (Message edited by buellistic on August 24, 2007) (Message edited by buellistic on August 24, 2007) | ||
| Jimrich |
Erik, emailed scanned pages. | ||
| Gearheaderiko |
Very interesting! Not surprising the owners manual contradicts this (.038-.043).   Understand that comments posted on the discussion forum represent only the views of their authors and in no way may be construed as representing the views of BadWeatherBikers.com, its custodians, or its owner(s) of record. Users will never hold BadWeatherBikers.com, its custodians, or its owner(s) of record responsible for any content posted by users of the discussion board. | ||
| Buellistic |
If you are having these SPARK PLUG "ISSUES" within your first your of ownership this is an indication of some serious PROBLEMS which are covered by WARRANTY !!! If after the WARRENTY peroid, the QUESTION then becomes what are you doing WRONG ??? | ||
| Buellistic |
My Owner's Manual matches my FACTORY SERVICE MANUAL ... | ||
| Ezblast |
Iridium come pre-gapped because you can not gap them with out breaking the center electrode. GT - JBOTDS! EZ | ||
| Buellistic |
You buy the BIG $$.$$ non-adjustable SPARK PLUG because it is the IN GROUP thing to do ... You are condemned to to replace this expensive(BIG $$.$$)SPARK PLUG every 10K because the FACTOUY MOTORS MANUAL says so !!! Remember that you never have to CLEAN or GAP theses BIG $$.$$ SPARK PLUGS, "JUST BUY a NEW ONE !!! The SPARK PLUG Manufacturers are in the same "SELL" you'll more SPARK PLUGS "TOO" as is the HARLEY-DAVIDSON Dealers ... Could anyone out there in BLASTdom POST the "DYNO" runs TESTing on all these, "HEY", BLASTers this is the "BEST" BIG $$.$$ SPARK PLUG to "BUY" ... It should show "THE BIG "HORSE POWER GAIN", "THE TREMENDUS GAS MILAGE GAIN", "DID" it actually LAST 10K ???", it shaved SECONDS off the 1/8 and 1/4 mile "ET TIMEs", and it REALLY DOES make the engine start better ... | ||
| Jimrich |
Hey EZ then is this wrong for Iridium? http://www.ngksparkplugs.com/techinfo/spark_plugs/ installation.asp?nav=31300&country=US#gapping | ||
| Buellistic |
If the SPARK PLUG "GAP" is "WRONG" as in TOO big(LARGE) a GAP and you do not have the BIG $$.$$ "HIGH VOLTAGE INGITION SYSTEM" your engine will not RUN WELL(if at all) which will induce problems that the ones that are telling you'll to get these SPARK PLUGS will be gald to help you TROUBLE SHOOT these self induced PROBLEMS ... | ||
| Steveshakeshaft |
I've tried the Platinum, Iridium, Split Fire, Unobtanium........ yada yada..... And I can't really find anything that is any better than a HD 10R12. |
