This old dog has learned a new trick! After reading motorcycle plugs for decades, earning respect from my peers. I feel this video has been the most informative piece of proper tuning information I’ve ever been lucky enough to come across. Mr Baxter thank you so much for sharing your knowledge and time with us. I’ve been missing half the story plugs have been telling me.
Macro photography is always difficult. Because the depth of field becomes shallow. This is also true of video cameras and even harder to manage with video.
I raced motorcycles for 25 years and I just learned things I wish I'd known years ago. What's particularly great about your style is you not only explained it, you connected enough dots that what you showed is logical, and remembering the concepts you can figure out what it should look like. That's great teaching. Thank you, I'm subscribing after one video view.
Wholly shit, and I thought I knew my mechanical skills to work on my own Harley, this video just threw all that out the door, what an amazing informative educational video I just watched, out of all the tech videos I have seen, this is by far the best I have seen, thank you Kevin, 👌👍
I can't believe this clip comes up today. The very day my bike tuner who's is doing a build for me was talking about reading plugs & your name came up as you were the first to comment on hos post. Brian from EASTERN BIG TWIN. Australia. G'day 😉👍
@@KevinBaxter the only thing you missed was cold rating. Other than guessing, is there a way I can tell if i have the correct plug. If you don't know i run a turbo road king w/98" that runs 30lbs boost (not a typo lol) currently running ngk's dcpr9e
No doubt there sir. As you know, much of that can change a little when dealing with boost, nitrous, alcohol, nitro, etc. I didn't even go there on this one because very very few people take things to that level and I didn't want to confuse anyone. 30lbs boost...just how big are those cyl studs? lol. Anyway, to answer your question...in a boosted engine you can also use the ground strap as an indication of plug "temp". You would want the color change in the exact same area however, if you aren't experiencing detonation and you know the timing is pretty dang close, use that to determine if you could run a hotter, or colder plug. If the color change is close to the tip, run a hotter plug. If it's closer to the threads, run a slightly colder plug. You want in right in the middle of the bend. Also, pay very close attention to the center porcelain. If it starts to look glossy....as if its melting, definitely run a colder plug. Hope that helps.
@@KevinBaxter if you find yourself with some extra time on your hands check out the road king, I have a few video up here on the tube of it. I built it last year from the ground up, started with a bare frame, no parts no motor nothing acquired it all for the build and did it for about 15k total investment, you will see the progression of me turning up the boost, I started out 12lbs then went to 18lbs, then 22 and then just let it eat at 30lbs, i think i can make even more boost yet, it sounds like a 2 stroke chain saw going down the track. I've been doing all the tuning with some help from my local HD'er setting the AFR's and making sure i don't run into spark knock. By the way I swear by Kimbal White studs, wont ever use anything else.
Mr. Baxter the information that you give is is so educational on a real level you always keep it straightforward facts factual and I appreciate you giving your time up to help all of us out here become better writers and better tuners God bless you..
Great work. Love your detailed look at the colorization of the plugs. I learned a lot and hope to apply it to my resent engine mods and dialing in timing and jetting. Thanks you very much h.
Wow...great video. Excellent explanation. And you're right, reading plugs is a lost art, but they can tell you exactly what's happening in your combustion chamber. Thanks again.
Mr Baxter, not since I was in Auto Shop have I found some one like yourself that provided a really comprehensive explanation, your an excellent teacher, must be hell of a mechanic. I am now a subscriber to your channel.
Well he picked up another subscriber I've watched couple other videos and doesn't ever suggest taking the bike to the dealer he's a VERY GOOD PERSON to learn from
I have to say that even though I can read a plug very well, this is the first time I've heard of taking the porcelain out to get an accurate reading of the throttle range.. It's was the only way I had to set up my card at the drag strips... It was not uncommon to go through 6-8 sets of plugs in a day... I will say though that I also have a Wego III exhaust gas analyzer with data recording... Great tool.. Well Done.. Thank you...
@kevinBaxter this is the most advanced explanation I’ve ever been able to find on reading plugs outta Harleys. I learn so much from watching your stuff man. Can you do another video some time reading a larger array of ‘bad’ plugs? I still have so many questions on plug conditions I’ve seen and I know there’s more to learn. Keep it up brother, your channel is the best you are definitely the guy I want to learn more about HD engines from. The attention to detail and breadth of knowledge and experience you have is so hard to come by. And just straight up professionalism and craftsmanship. I love it you’re my kind of people man keep it up !! ✊🏻
Thank you sir, been waiting for info like this. Re jetting a S&S 96 and always ran rich. Ran good but always black plugs. With gas with higher octane, like 110 I had a chocolate color. Always ran poor in low rpm. Finally re jetted the carb and with 91 octane I'm getting a nice cocoa color and a lot more torque and better throttle response. And always wonder if my timing was correct. After looking at my plugs and still wondering if I'm in the right area, I saw this video. I think I feel better knowing that I'm pretty close and shouldn't have to worry about blowing up an engine. Great content!
excellent Kevin. I sure did not know plug reading to this level. Just the ceramic coloring to tune the carb jets to the new carbs/pipes, etc. Worked just fine for me in the 70's on 2 and 4 stroke bikes.
I built a 1974 year Shovelhead all stock. Later I has a 1980 Shovelhead with a mild cam and S&S B carb. My Toyota tech friend told me to run Toyota plugs. So for all those years I ran the ND-16 U-groove Toyota plug. Also a great plug against seizing in the head. I never had one to foul out and always ran clean. I also ran them in my 1994 Heritage Evo with crane 490 cam and S&S E model carb. Great plug. In my 2010 Heritage, I was going to try them and for some reason, the 2010 Twin cam engine has some off the wall thread diameter that the parts store could not cross reference. I run SE plug in it. Oh Well
Kevin, new subscriber here in Canada. Absolutely fantastic channel with professional on-point info (I’ve watched them all) and great presentation. I’ve done about 15 twin cam builds and 1 M8 (all in my home garage) and must say that your knowledge and experience is invaluable. My tablet and your guidance will forever live atop my tool box with my shop manuals for easy reference. Keep up the great work Kevin.
Kevin Baxter Up in Kingston, Ontario. 25 minutes and directly across from upstate New York border. Ride the New York, Pennsylvania, Virginia, NC/SC states. Haven’t been to GA yet but plan to. Would love to drop in once things open up. Be well, be safe and keep us all fed with your great knowledge. Thx.
I love Kingston. Know the guys at Motosport Plus...well I did until ownership changed anyway (Tony Hewitt used to work there...good fella). I went up there a few times to train them on EFI tuning. You probably know of Bob McKay...McKays cycle creations. he was a very very dear friend. Wayne at Heritage Cycle Works....great friend as well. I actually have a few boxes of pucks from Canadian Tire bought from the Kingston store. I use them as feet on my equipment. Actually the first time I had a Timmys was with Bob, his wife Dianne, and my wife in Kingston several years ago. Hard to beat a Timmys. I was just up there a few months ago...I drive up and cross over by way of the 1,000 island bridge. Have also judged the Toronto bike show a few times. If you find yourself near Ga...welcome to come by anytime.
Kevin never considered the amount of information a spark plug could reveal. I figured if it wasn't fouled we are good to go. Thanks for the education. Always fascinated with the true inside stories, nice presentation.
Kevin, Nice to see a real technician giving advice and explaining what is going on. You certainly separate yourself from 90% of the "so called mechanics"...Im having some problems with my 03 Road King and would love to get your advice on what might be happening...would you be willing to help me and if so can I write to you offline of youtube.???
Great video, i tuned My 2013 Streetglide D&D Fatcat exahaust with the DynoJet Powervision but without O2 Sensors and adjusting all fuel setings manually. I just raised the fuel up a hair and rode a little and kept bringing it up based off how it was running and reading the plugs, I just went on a 3200 mile trip out to Utah, rode in 100 degree heat and 12,000 foot up in Colorado, the bike ran great and when pulling a plug after i got back i expected to see signs of riding in the heat but the plugs looked great based on your video here, just a slight color change 2 threads down, i actually raised the fuel up a tad after all that since they looked more grey where ypur showing more black but the center porcelin is still white. This has been a lot of fun and i no longer hate fuel injection and think this actually works better then a carburator. Your video taught me enough to get it runing perfect. One thing you cant teach though is common sense, you will need that to tune this way. A lot of people are hard headed and refuse to learn, in there case they're better off to just use a pre tuned map or whatever you call that or pay a Tech. I like the hobby aspect of doing it myself.
I have a 2001 twin cam and after watching this video I thought let’s go see how my plugs look! So the rear plug looked great but the front was all black from carbon power, so what am i having a huge difference in cylinders? Great videos very educational!!
Great info. Don't own a Harley yet, but I see one in my near future. Am amazed at all of your content. Have one question if anyone would answer. He lost me when he mentioned the 12.8 to 13.2.
This was an awesome video! I have a dyno at my house and I've tuned a lot of high horsepower nitrous bikes (Hayabusa zx14 gsxr1000 ECT) but I've mainly used the grounding strap just for finding out what timing a nitrous motor likes. I'm going to buy something to where I can cut plugs open and I'd love to compare this method with the wideband on the dyno. By having a cheat sheet (AFR wideband) I should be able to see how close my initial guesses are when reading a plug. Can't wait to try this out with one of my personal bikes
ive done it long enough, i can almost tell you to .2-3 afr what it is by reading the plugs. you will start to see the pattern. just look down in it with a flashlight...youll see it. no real need to cut it open.
A hack saw blade and a cordless drill make sort work of the crimp. I run in a nitro crowd where everyone has to have the latest greatest wiz bang tool…. If I didn’t make everything for the hot rod this po white boy would be a spectator.
Thanks for the info, this video is awesome! Quick question,... how would one test cruise half throttle ect ect... if you said it I missed it lol. Thanks ago for the awesome video
WOW! I’m going watch again with a note pad. This has been black magic for years to me. Never found a good explanation on the process of tuning from spark plug color. Thanks for the great info!
Thank you sir. Be sure to watch the follow up video where I applied the same principals to the 270 inline 6 in my 1949 GMC. I call it the "Stovebolt" project.
A hack saw blade and a cordless drill makes short work of the spark plug crimp. And if anyone knows the part number for a ngk dcpre 7 plug without a screw on top I would appreciate it. The only advantage I’ve come to with HD is being able to run the fine line of detonation due to a roller bearing crank. Swain tech coating stops the pistons from being wear items in high compression pump gas hot rod bikes. Fine video sir, you give insight to why we make the big bucks🙁.
Absolutely the best explanation on spark plugs I've ever seen. Now, which plug or plugs do you recommend on my 2013 Heritage Softail with the 103B? Has the stage one, which entails the performance air filter and two into one Rinehart exhaust, with the Power Vision 2 tuner. Using 91 octane fuel. Thanks in advance.
Kevin, really appreciate all the effort you put into your videos. I pulled my plugs the next day to see what they were telling me and none looked right at all so I decided that since they've got 20k on them and they have been in since break-in and two different stage builds that I'd put new ones in and see how they read. Question, how long should I run them to get a good reading? 2017 M8, 22x cam, big sucker and CFR slip-ons. Once again thanks for your great contributions, I've posted several out on some forums to share. Ron
Thank you very much. It can take a few hundred miles to get a really good average. In racing, you can tell after only one run, but you have to have a library of plugs to compare to.
This old dog has learned a new trick! After reading motorcycle plugs for decades, earning respect from my peers. I feel this video has been the most informative piece of proper tuning information I’ve ever been lucky enough to come across. Mr Baxter thank you so much for sharing your knowledge and time with us. I’ve been missing half the story plugs have been telling me.
Sorry for the poor detail focus on the plugs..camera wasnt working right but I think its enough for you guys to get the right idea.
Macro photography is always difficult. Because the depth of field becomes shallow. This is also true of video cameras and even harder to manage with video.
Sure, blame it on the camera. lol
Excellent tutorial thank you very much. I learned a lot.
Best plug breakdown I have ever seen.
You saw it did you? Every scene he demonstrates is out of focus. I can't see anything he is talking about.
I raced motorcycles for 25 years and I just learned things I wish I'd known years ago. What's particularly great about your style is you not only explained it, you connected enough dots that what you showed is logical, and remembering the concepts you can figure out what it should look like. That's great teaching. Thank you, I'm subscribing after one video view.
Wholly shit, and I thought I knew my mechanical skills to work on my own Harley, this video just threw all that out the door, what an amazing informative educational video I just watched, out of all the tech videos I have seen, this is by far the best I have seen, thank you Kevin, 👌👍
Thank you John. Have quite a bit on content on here with more coming. Appreciate the sub.
I can't believe this clip comes up today. The very day my bike tuner who's is doing a build for me was talking about reading plugs & your name came up as you were the first to comment on hos post. Brian from EASTERN BIG TWIN. Australia.
G'day 😉👍
best spark plug reading tutorial I have seen so far.
That was the most detailed video explaining reading spark plugs iv ever seen thanks so much for doing that
Glad it helped
Just learned more in 5 minutes then I did in shop class 30 years ago!
It is a pleasure to hear someone speak. English Thank you Sir for the great knowledge that you shared.
Thanks and welcome
thanks, prolly one of the best spark plug readings tutorial I've seen, i hope i can put it to good use at the track this summer.
Thank you very much sir! I appreciate it. I hope it does.
@@KevinBaxter the only thing you missed was cold rating. Other than guessing, is there a way I can tell if i have the correct plug. If you don't know i run a turbo road king w/98" that runs 30lbs boost (not a typo lol) currently running ngk's dcpr9e
No doubt there sir. As you know, much of that can change a little when dealing with boost, nitrous, alcohol, nitro, etc. I didn't even go there on this one because very very few people take things to that level and I didn't want to confuse anyone. 30lbs boost...just how big are those cyl studs? lol. Anyway, to answer your question...in a boosted engine you can also use the ground strap as an indication of plug "temp". You would want the color change in the exact same area however, if you aren't experiencing detonation and you know the timing is pretty dang close, use that to determine if you could run a hotter, or colder plug. If the color change is close to the tip, run a hotter plug. If it's closer to the threads, run a slightly colder plug. You want in right in the middle of the bend. Also, pay very close attention to the center porcelain. If it starts to look glossy....as if its melting, definitely run a colder plug. Hope that helps.
@@KevinBaxter if you find yourself with some extra time on your hands check out the road king, I have a few video up here on the tube of it. I built it last year from the ground up, started with a bare frame, no parts no motor nothing acquired it all for the build and did it for about 15k total investment, you will see the progression of me turning up the boost, I started out 12lbs then went to 18lbs, then 22 and then just let it eat at 30lbs, i think i can make even more boost yet, it sounds like a 2 stroke chain saw going down the track. I've been doing all the tuning with some help from my local HD'er setting the AFR's and making sure i don't run into spark knock. By the way I swear by Kimbal White studs, wont ever use anything else.
Super informative and by far the best spark plug analysis video i've seen yet. Thanks Kevin
Glad it was helpful!
Mr. Baxter the information that you give is is so educational on a real level you always keep it straightforward facts factual and I appreciate you giving your time up to help all of us out here become better writers and better tuners God bless you..
This is the best of all explanation i could find, 10/10 thank you
As like everyone else said, I appreciate the time and knowledge you share. Some of the best info on you tube! Thanks again!
Great work. Love your detailed look at the colorization of the plugs.
I learned a lot and hope to apply it to my resent engine mods and dialing in timing and jetting. Thanks you very much h.
Cheers this is definitely going to help my ignition setup on my twin cam via the pcv and of course the daytona twin tec setup i have.
Simply the best
Amazing stuff !!! I always thought looking at a spark plug was look and see if its dirty and needs a clean. I am AMAZED by this absolute WOW !!!!!
Great tutorial.
I watch every video I can.
Wow...great video. Excellent explanation. And you're right, reading plugs is a lost art, but they can tell you exactly what's happening in your combustion chamber. Thanks again.
You and your shop are an amazing resource! Thanks for all that you do!
I appreciate that! Thank you!
Thanks for your time. I appreciate it..
I really do enjoy the presentation, and it makes it very simple to RETAIN! Thanks so much!
Glad it was helpful!
Great to see some old school true mechanical skills , I have not seen or heard of this since I was an apprentice 30 years ago
That was the best explanation on plugs i have seen, Thanks kevin
Very welcome
Wow - that was amazing! Thanks, Kevin!
Wow! this knowledge of spark plug wear amazes me!
This Man is a Harley engine Surgeon!
Good job Kevin easy to understand good job
Best video ever made on reading plugs. Thanks so much. I just changed plugs on my 18 gsxr 1000R for the first time 7K miles.
Mr Baxter, not since I was in Auto Shop have I found some one like yourself that provided a really comprehensive explanation, your an excellent teacher, must be hell of a mechanic. I am now a subscriber to your channel.
Great content and aligns with my learnings from drag racing! 🎯💯
What an absolutely brilliant video thanks so much for sharing Kevin its a constant learning experience in life absolutly terrific video.
Kevin is the GOAT
AWESOME video! Thanks!
Absolutely fantastic ! Thank you..... can't wait to take my plugs out tomorrow and analyze away.
Best of luck!
Thanks ! A lot of great information really helps me know mor about my eco. Thanks
I never heard this depth of explanation. 👍
Well he picked up another subscriber I've watched couple other videos and doesn't ever suggest taking the bike to the dealer he's a VERY GOOD PERSON to learn from
Great video!! And best of luck in the New Year with all your projects!
This is so useful! Thank you!
Best plug video on the net by far
Appreciate that. Thank you for the kind words. Glad its helpful.
Thank you sir , great video i b using it as a refrence guide for yrs
Learned something new today👍
A lot to remember, but very informative. Good video.
Great channel bro - well appreciated
Always top tech dive in the deep end.
Big big fan 😉
Thank you mate for making this video.
That's a get Down Kevin , thanx for all that info !! 👊
Good video with a lot of information, much appreciated.
Glad it was helpful!
Excellent! Thanks man!
Kevin thank you this will help me tune my 110 CVO with my powervision tuner.. now I can dial it in better ...👍
Glad to help
Awesome video sir
WOW….great information, I wish I would have learned this 30 years ago!!!
Thanks Kevin that’s a good video I’m always trying to get that perfect plug
Thank you Ron.
I have to say that even though I can read a plug very well, this is the first time I've heard of taking the porcelain out to get an accurate reading of the throttle range.. It's was the only way I had to set up my card at the drag strips... It was not uncommon to go through 6-8 sets of plugs in a day... I will say though that I also have a Wego III exhaust gas analyzer with data recording... Great tool.. Well Done.. Thank you...
@kevinBaxter this is the most advanced explanation I’ve ever been able to find on reading plugs outta Harleys. I learn so much from watching your stuff man. Can you do another video some time reading a larger array of ‘bad’ plugs? I still have so many questions on plug conditions I’ve seen and I know there’s more to learn. Keep it up brother, your channel is the best you are definitely the guy I want to learn more about HD engines from. The attention to detail and breadth of knowledge and experience you have is so hard to come by. And just straight up professionalism and craftsmanship. I love it you’re my kind of people man keep it up !! ✊🏻
Thanks for the upload great detail video
Thank you sir, been waiting for info like this. Re jetting a S&S 96 and always ran rich. Ran good but always black plugs. With gas with higher octane, like 110 I had a chocolate color. Always ran poor in low rpm. Finally re jetted the carb and with 91 octane I'm getting a nice cocoa color and a lot more torque and better throttle response. And always wonder if my timing was correct. After looking at my plugs and still wondering if I'm in the right area, I saw this video. I think I feel better knowing that I'm pretty close and shouldn't have to worry about blowing up an engine. Great content!
Great tutorial Kevin.
Thank you kindly
Nice detailed run thru on reading plugs...Cheers!
Thanks!
excellent Kevin. I sure did not know plug reading to this level. Just the ceramic coloring to tune the carb jets to the new carbs/pipes, etc. Worked just fine for me in the 70's on 2 and 4 stroke bikes.
Thank you sir. Glad it helped.
I built a 1974 year Shovelhead all stock. Later I has a 1980 Shovelhead with a mild cam and S&S B carb. My Toyota tech friend told me to run Toyota plugs. So for all those years I ran the ND-16 U-groove Toyota plug. Also a great plug against seizing in the head. I never had one to foul out and always ran clean. I also ran them in my 1994 Heritage Evo with crane 490 cam and S&S E model carb. Great plug. In my 2010 Heritage, I was going to try them and for some reason, the 2010 Twin cam engine has some off the wall thread diameter that the parts store could not cross reference. I run SE plug in it. Oh Well
Thank You Kevin! 👍👍
Very welcome
Professor Kevin ya definitely schooled me with this one 👍👍
Glad you enjoyed it. thanks!
Excellent
TY Kevin!! Great Video...
Very welcome. Thank you sir.
Kevin, new subscriber here in Canada. Absolutely fantastic channel with professional on-point info (I’ve watched them all)
and great presentation. I’ve done about 15 twin cam builds and 1 M8 (all in my home garage) and must say that your knowledge and experience is invaluable. My tablet and your guidance will forever live atop my tool box with my shop manuals for easy reference. Keep up the great work Kevin.
Awesome! Thanks and welcome. Glad i can help. All the best to you. Where in Canada?
Kevin Baxter Up in Kingston, Ontario. 25 minutes and directly across from upstate New York border. Ride the New York, Pennsylvania, Virginia, NC/SC states. Haven’t been to GA yet but plan to. Would love to drop in once things open up. Be well, be safe and keep us all fed with your great knowledge.
Thx.
I love Kingston. Know the guys at Motosport Plus...well I did until ownership changed anyway (Tony Hewitt used to work there...good fella). I went up there a few times to train them on EFI tuning. You probably know of Bob McKay...McKays cycle creations. he was a very very dear friend. Wayne at Heritage Cycle Works....great friend as well. I actually have a few boxes of pucks from Canadian Tire bought from the Kingston store. I use them as feet on my equipment. Actually the first time I had a Timmys was with Bob, his wife Dianne, and my wife in Kingston several years ago. Hard to beat a Timmys. I was just up there a few months ago...I drive up and cross over by way of the 1,000 island bridge. Have also judged the Toronto bike show a few times. If you find yourself near Ga...welcome to come by anytime.
Damn that was amazing ! Thank you
Very interesting, thank you.
Glad you enjoyed it
Love it.
You guys Gota be bout the best if not very top of the cream pile.
thank you sir. i appreciate that.
Great info! Thank you! 👍
My pleasure!
thanks, that's helpful!
Spot on...thank you.
Thank you
great information.
Kevin never considered the amount of information a spark plug could reveal. I figured if it wasn't fouled we are good to go. Thanks for the education. Always fascinated with the true inside stories, nice presentation.
Hey there Del! Good to hear from ya bud. Hope you and the girls are doing well.
Kevin, Nice to see a real technician giving advice and explaining what is going on. You certainly separate yourself from 90% of the "so called mechanics"...Im having some problems with my 03 Road King and would love to get your advice on what might be happening...would you be willing to help me and if so can I write to you offline of youtube.???
my hat is off to you sir.
Thank you Martin!
Great video.
Glad you enjoyed it
Máster class!! Just great.
Great ill have ever had is old champion charts from early sites and 70 ngk for metric bikes
Damn good video bro!
thanks man.
Great video, i tuned My 2013 Streetglide D&D Fatcat exahaust with the DynoJet Powervision but without O2 Sensors and adjusting all fuel setings manually. I just raised the fuel up a hair and rode a little and kept bringing it up based off how it was running and reading the plugs, I just went on a 3200 mile trip out to Utah, rode in 100 degree heat and 12,000 foot up in Colorado, the bike ran great and when pulling a plug after i got back i expected to see signs of riding in the heat but the plugs looked great based on your video here, just a slight color change 2 threads down, i actually raised the fuel up a tad after all that since they looked more grey where ypur showing more black but the center porcelin is still white. This has been a lot of fun and i no longer hate fuel injection and think this actually works better then a carburator. Your video taught me enough to get it runing perfect. One thing you cant teach though is common sense, you will need that to tune this way. A lot of people are hard headed and refuse to learn, in there case they're better off to just use a pre tuned map or whatever you call that or pay a Tech. I like the hobby aspect of doing it myself.
Awesome job! Good on ya man!!!
How do you adjust the timing with a power vision?
Wow, ill never look at a sparkplug the same ever again, great tips
thank you
Kevin Baxter 👍🏻
I have a 2001 twin cam and after watching this video I thought let’s go see how my plugs look! So the rear plug looked great but the front was all black from carbon power, so what am i having a huge difference in cylinders? Great videos very educational!!
Great vid
Thank you sir.
Wow, thanks
Subscribed, based on only seeing this video.
Great info. Don't own a Harley yet, but I see one in my near future. Am amazed at all of your content. Have one question if anyone would answer. He lost me when he mentioned the 12.8 to 13.2.
This was an awesome video! I have a dyno at my house and I've tuned a lot of high horsepower nitrous bikes (Hayabusa zx14 gsxr1000 ECT) but I've mainly used the grounding strap just for finding out what timing a nitrous motor likes. I'm going to buy something to where I can cut plugs open and I'd love to compare this method with the wideband on the dyno. By having a cheat sheet (AFR wideband) I should be able to see how close my initial guesses are when reading a plug. Can't wait to try this out with one of my personal bikes
ive done it long enough, i can almost tell you to .2-3 afr what it is by reading the plugs. you will start to see the pattern. just look down in it with a flashlight...youll see it. no real need to cut it open.
A hack saw blade and a cordless drill make sort work of the crimp. I run in a nitro crowd where everyone has to have the latest greatest wiz bang tool…. If I didn’t make everything for the hot rod this po white boy would be a spectator.
@@KevinBaxter love your videos, what’s your thoughts on the E3 plugs? I have a 2011 Fatboy
Thanks sir
Thank you!
You're welcome! Thank you.
Kevin just watched this video again!!! It's worth watching over and over, It's a great reference tool. How's the NEW SHOP going? JV from NJ
Thanks for the info, this video is awesome! Quick question,... how would one test cruise half throttle ect ect... if you said it I missed it lol. Thanks ago for the awesome video
WOW! I’m going watch again with a note pad. This has been black magic for years to me. Never found a good explanation on the process of tuning from spark plug color. Thanks for the great info!
Thank you sir. Be sure to watch the follow up video where I applied the same principals to the 270 inline 6 in my 1949 GMC. I call it the "Stovebolt" project.
A hack saw blade and a cordless drill makes short work of the spark plug crimp. And if anyone knows the part number for a ngk dcpre 7 plug without a screw on top I would appreciate it. The only advantage I’ve come to with HD is being able to run the fine line of detonation due to a roller bearing crank. Swain tech coating stops the pistons from being wear items in high compression pump gas hot rod bikes. Fine video sir, you give insight to why we make the big bucks🙁.
Please elaborate on the use of anti-seize on plugs. Thanks
Cool...thanks
You bet! Youre welcome.
Absolutely the best explanation on spark plugs I've ever seen.
Now, which plug or plugs do you recommend on my 2013 Heritage Softail with the 103B?
Has the stage one, which entails the performance air filter and two into one Rinehart exhaust, with the Power Vision 2 tuner.
Using 91 octane fuel.
Thanks in advance.
thank you sir. regular old 6R12 or equivalent in other brands. Stock works great.
Kevin, really appreciate all the effort you put into your videos. I pulled my plugs the next day to see what they were telling me and none looked right at all so I decided that since they've got 20k on them and they have been in since break-in and two different stage builds that I'd put new ones in and see how they read. Question, how long should I run them to get a good reading? 2017 M8, 22x cam, big sucker and CFR slip-ons. Once again thanks for your great contributions, I've posted several out on some forums to share. Ron
Thank you very much. It can take a few hundred miles to get a really good average. In racing, you can tell after only one run, but you have to have a library of plugs to compare to.