Ducman Posted February 24, 2004 Report Share Posted February 24, 2004 I wonder what would happen if you ran one heat range colder? I think that would be BR7eix. Maybe in that case you wouldn't have to rejet? Maybe even though the heat range is rated the same it actually isn't? On the other hand these plugs probably are producing a lot hotter spark which would be similar to running a higher voltage coil or a ignition amplifier which would require larger mains which would explain why your rejetting was necessary. Usually plugs don't vary that much due to lower impedence, just heat range, but apparently these one do. One thing to consider is that with a hotter plug (usually considering heat range though not spark output), if you are close to having a detonation problem due to high compression and pump gas, a hotter plug will put you into the danger zone. Sounds like a good mod for the price if they actually produce a noticeable difference. Quote Link to comment Share on other sites More sharing options...
sredish Posted February 24, 2004 Author Report Share Posted February 24, 2004 I can feel a definite seat of the pants difference, don't know, maybe only a better response thing than the overall power thing, but it's there. I haven't spent much time on it and really got familiar with it yet. Actually, I was going to work on my jetting a little more. I'm at 220, but I don't have anything more. My jets will be here today and I'm hoping a 230 will run really good and not bog. I want to go up on my pilot one more and play with the needle some. It was explained to me that it is the resistance. The electrode is so hot and small that it requires less voltage for an equal spark, or more spark with equal voltage, due to the resistance. That is just what you were saying. I never thought about the heat range, and it seems the jetting is going to work out for the better. Scott Quote Link to comment Share on other sites More sharing options...
XTShee Posted February 24, 2004 Report Share Posted February 24, 2004 Damn, that is a sure way to ruin an afternoon. Are you back up and running? Na not yet, I opted to send my engine to Passionre for a stroker rebulid, Should be up and running again in about a month I think. Shipping it over to him and saveing the cash took me a while. Should be sweet when I get it back though Quote Link to comment Share on other sites More sharing options...
D34 Posted February 24, 2004 Report Share Posted February 24, 2004 I wonder what would happen if you ran one heat range colder? I think that would be BR7eix. Maybe in that case you wouldn't have to rejet? Maybe even though the heat range is rated the same it actually isn't? 7's would be a hotter plug not colder... and i think u guys r confusin a hotter spark with a hotter heat range... there is a difference... i ran b9es b4 and have been runnin br9eix 4 about a month n my race bike with no jettin change... maybe u were on the lean side b4 Quote Link to comment Share on other sites More sharing options...
sredish Posted February 25, 2004 Author Report Share Posted February 25, 2004 no, i wasn't on the lean side before. i'm very particular with the way my bikes jetted. i like it nice and dark and towards the rich side of the line. that is exactly how it was before. in fact, when i found out the problem was focusing on the iridium plugs, i threw an old set of the b8es in, and (keep in mind I already changed the main twice) it was running really rich. Quote Link to comment Share on other sites More sharing options...
D34 Posted February 25, 2004 Report Share Posted February 25, 2004 ooookkkk if u say so, but just changin 2 a different type of plug will not change ur jettin much, 1 size maybe.... what about ur oil separatin from ur gas, if there is oil at the bottom what about the rest of the gas/oil mixture left n the tank... wouldnt it b mixed wrong... just a thought Quote Link to comment Share on other sites More sharing options...
sredish Posted February 25, 2004 Author Report Share Posted February 25, 2004 ooookkkk if u say so, but just changin 2 a different type of plug will not change ur jettin much, 1 size maybe.... what about ur oil separatin from ur gas, if there is oil at the bottom what about the rest of the gas/oil mixture left n the tank... wouldnt it b mixed wrong... just a thought i don't ever go out and run it without making sure the oil and gas are well mixed. True, when it's cold, and I start her up, she's got some oil settling in the bottom. But, first off, I don't ride when it's below 55 or 60, so it's plenty warm for the oil to be mixed, and I always make sure the fuels mixed before I start it and then I warm it up real good and take a short little ride. By then if it's not mixed, it's not going to be. not too mention if there's so much oil in the bottom that would cause the gas in top to be straight, that's a lot of oil. If there's that much oil in the bottom, that would take a while to get to the lean part don't you think, along with a few fouled plugs? Quote Link to comment Share on other sites More sharing options...
2banshees Posted February 25, 2004 Report Share Posted February 25, 2004 are these plugs more expensive than the b8es? Quote Link to comment Share on other sites More sharing options...
XTShee Posted February 25, 2004 Report Share Posted February 25, 2004 Ya they are about 3 times the price as the b8es in NZ, not sure what the diffrence would be in the states though Quote Link to comment Share on other sites More sharing options...
sredish Posted February 25, 2004 Author Report Share Posted February 25, 2004 Ya they are about 3 times the price as the b8es in NZ, not sure what the diffrence would be in the states though 7 bucks in the states. Quote Link to comment Share on other sites More sharing options...
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