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@riflebear17112 жыл бұрын
On a kohler 18hp twin that's on a craftsman rider if the plug is oil wet than I can assume the rings are bad and engine needs to be rebuilt? Do I need to buy a compression tester?
@needmoreboost63692 жыл бұрын
Small engine mechanic’s are actually better engine tuner’s than most automotive mechanics
@marcnissen578 Жыл бұрын
Thanks for the compliment I’ve been a small engine mechanic for 30 yrs
@TrojanLube69 Жыл бұрын
said no one ever 😂😂. There are way more variables to take into account in tuning big engines, specially carbureted engine. No saying small engine mechanics are dumber, just not in the same level. Anyone who has touched a wrench in his life will know. It’s like comparing a house electrician with an electrical engineer in charge of the city’s electric distribution systems. 😂😂
@hentaibodypillow250 Жыл бұрын
@@TrojanLube69less variables means it’s easier to get it right the first time
@TrojanLube69 Жыл бұрын
@@hentaibodypillow250 thanks for proving my point. Just like no one says women are better at pulling someone to have sex than man. Easier = less skills required.
@wesleywigington Жыл бұрын
Dude I have been saying this too people lately and people just kinda looked at me crazy. My arguing point is this I can make a ford,dodge,Chevy run no problem. Now when you start trying to fix a small engine and make it run good/excellent I personally have to go back and do my research. Even then they give me hell
@nashguy2073 жыл бұрын
Good videos Jeremy. A plug can tell you a lot. We used to tune our race engine by looking at the plugs.
@moss84483 жыл бұрын
remember a 'see thru' plug that you could see the mixture when it fired....always looking for the blue.
@armandolee75002 жыл бұрын
Can you do the same with a generator...
@realdevbro4472 жыл бұрын
Uva
@dysfaction4 ай бұрын
01:33 Tad too rich but ok 02:47 Little bit lean 03:22 Low on compression 03:58 Scored piston & cylinder 04:43 Too rich fuel/oil 05:18 Fuel delivery issue 05:47 New Spark Plug
@williamwaters45062 жыл бұрын
Good video, it always amazes me how so many people never change their air filters.
@Vazerin11 ай бұрын
Thanks for the video, I have a 1987 TRX250X with low compression and the plug was fouled out, most people don't associate the two, you're the first video that said a spark plug was fouled from low compression, no I gotta figure out if it's piston rings or bad valve
@robertjbender2 жыл бұрын
Wow. Great video. Straight to the point, with clear explanations. You have a gift for teaching. Thanks for posting. Cool Oakley’s. Subscribed.
@TheRustyRooster3 жыл бұрын
Awesome job explaining whats happening with each plug
@zijie-he8 ай бұрын
Quite true, several years ago i changed spark plugs on an i6 and noticed oil on two of them. The engine ran, but definitely less ideal. I think it's simply because the spark plugs are the only thing easy accessible in the combustion chamber.
@timothymccrary3485 Жыл бұрын
Thank you so much I really never knew how to read different scenarios . Very helpful :)
@rotarythread2 жыл бұрын
I learned a lot from you! My 2016 car sparkplug is still clean at 64k odometer, thank you for sharing this!
@zeushualde56274 ай бұрын
it's means it's good....
@heathwilson25723 жыл бұрын
I always check the spark plugs in the first season . I’ve seen spark plugs that is all black and i always replace the new spark plug in my Echo equipment .I service all my equipment before spring clean up
@thetubeschannel2 жыл бұрын
Excellent !! went even further than I thought.. Much appreciated, I learned a bit here, will need to remember, ty !
@danthemowermedic44443 жыл бұрын
Love the video man. Not many engine guys read plugs these days!
@moss84483 жыл бұрын
Bought a set of plugs at a local parts store and got home only to find the assholes sold me used plugs and of course I couldn't take 'em back. My fault for not going over each box. Lesson learned.
@greglewis3382 Жыл бұрын
My old Honda gx110 has a black oily looking plug. It burns some oil but still runs good. The exhaust smells like there is too much unburned fuel sometimes.
@igmugleska9662 жыл бұрын
This was fascinating. You remind me of hanging out with my dad in the garage. Love your videos.
@rja62b2 ай бұрын
not sure what you mean by fuel? Those spark plugs have oil on the threads but not sure why you didn't talk about them
@Dayporter-j3m2 жыл бұрын
Is it normal for the thread to have a bit of engine oil?
@antoniomarc7174 Жыл бұрын
That is very good information thanks for sharing this…👍👍👍
@jeremybahm21632 ай бұрын
I have a mudbuddy 5500 they use vanguard engines got 2 carbs spark plug are always black motor runs good idle perfectly starts really easy I leaned my carbs low as they will go still same thing spark plugs black and dry after few minutes of running
@eastermister12 жыл бұрын
I enjoyed your video but you didn't really seem to explain why. The spark plug with low compression you said had the correct fuel mixture. What on that spark plug told you the fuel mixture was correct and the compression was low. Would not the same spark plug be an indication of too rich of a mixture? If so how can you tell the difference
@CarlosGarcia-ls4hn3 жыл бұрын
Just a suggestion, but can you also show what a perfectly running plug should look like? Thx.
@KnuckleSandwichMint2 жыл бұрын
Agreed
@muddogsgarage25583 жыл бұрын
Can you make a video and help me, I have a Husqvarna two-stroke leaf blower. I have clean the carburetor got a new spark plug check the magneto gap and a new fuel filter and cleaned the air filter and the primer bulb is new. It’s hard to start cold but it will fire up on full choke and then as it warms up it dies off and won’t start back up from there I end up flooding the motor just trying to start it. I hope you can help and have an idea of what’s going on and how to fix it.
@THEMOWERMEDIC13 жыл бұрын
I have videos in my 2 Stroke playlist. Sounds like the carb is Flooding. I’d replace it but before I did that I’d do a crankcase vacuum test
@muddogsgarage25583 жыл бұрын
@@THEMOWERMEDIC1 ok thanks I will do that
@jerrysoutherland6623 жыл бұрын
I have 125b husqvarna leaf blower,doing the same thing,did a vacuum and pressure test with a mityvac the carburetor would not hold pressure,showed to be the needle leaking,replace the carburetor and it runs great.
@Mason-fv1zl11 ай бұрын
I have a problem with a lawnmower where it runs but idles somewhat rough, and it won’t cut grass that well. I took the spark plug off and it was wet, cleaned it off, put it back in but the same thing happened spark plug was also wet again.
@SQUID_Road_Glide2 жыл бұрын
Thank you sir. On my way to my dealer for an explanation after 1700 miles and one plug that looks like the second to last one, wet below the nut on gap side. 2020 Fat Boy
@jonaaa6059 Жыл бұрын
Hi, What was the issue?
@SQUID_Road_Glide Жыл бұрын
@@jonaaa6059 from Harley, it was a river in Egypt and a hands off statement due to the fact I did my first maintenance with a Harley tech who just opened his own shop. My assessment was faulty piston rings causing a type of blow back coupled with the engine burning rich. Finally a possible faulty install. So far, no issues with the replacement Screaming Eagle plugs and wires.
@Justin-fq7vjАй бұрын
My spark plugs are like me. Old and worn out. The plugs say it's not them it's the ECU. What should I do? Replace the plugs or the truck 🤔 To old to walk far so the truck better start running soon. 🛻🏃🚶🚶
@precool2 жыл бұрын
Awesome. Thanks so much. What’s your method of cleaning plugs?
@THEMOWERMEDIC12 жыл бұрын
Don’t. Just replace. They are cheap
@frankcor79773 ай бұрын
Thank you for taking the time to show us all of the bad ones. But what about showing what a good spark plug looks like?
@irocitZ10 ай бұрын
Good video, lots of great info. Quick question, do you think its ok to use a Champion plug RCJ6Y in place of a NGK BPMR8Y that I removed from an Echo leaf blower? The plug I took out was dry with a redish brown color. Thanks
@jimgee26762 жыл бұрын
do you prefere the v groove over the flat spark plug
@hiltonsaona78622 ай бұрын
Hey I just bought a boat and the plug gaps were from 0.35 - 0.48. This is from a v6 . I just changed the plugs , when should I pull the plugs just to see how the engine is running ?
@Tommy81.5197 ай бұрын
A couple plugs have a little bit of oil on them? What could that mean? Valve stem seal? Cover gasket?
@markgabriel46405 ай бұрын
Sir my i ask ? My side electrode is black my center electrode is white? What do you think? Thank you for your answer God bless
@LUNARIAproject Жыл бұрын
I bought a bike that has been sitting for 10 years and when I got it the oil was all black as well as the spark plug all black and full of soot. What do I need to do before replacing the spark plug with a new one? Should I clean the inside where it sits or spray it with something first? I've changed the oil and gas and cleaned the carb. The bike ran very bad before and died when reaching 4:th gear after some time and when riding it for a while. So I have it taken apart now since I will be replacing the petcock since it was leaking.
@jacobbonner13062 жыл бұрын
Nice plug tutorial chap, thanks.
@AlwaysDiagnoseVehicleFirst9 ай бұрын
Nice to meet you my brother i like this video! I removed cylinder 1 spark plug and im frustrated because im not comprehending how to read the condition of cylinder 1 spark plug so i can know what is going on inside the vehicle (2003 DODGE CARAVAN SE) engine, can you help me, please?
@brocky782 жыл бұрын
generator fouling new spark plug instantly with dry black powdery deposits , any ideas , do I need to increase decrease air/fuel mixture have done approx 1800 hrs use?
@ImplantedMemories9 ай бұрын
Does this logic also apply to 2 stroke engines ? Or are we talking about 4 Stroke only ?
@marcobrownstone3 жыл бұрын
Awesome information and diagnosis of spark plugs & possible engine performance as a result of inspection. Well done!
@jason6325 Жыл бұрын
Hello sir. I have a 2 stroke dirtbike. Has good compression. But the plug is saturated. You think the carb is the issue? Thanks.
@jacek1235 Жыл бұрын
Hello. Can you help me tune the carburetor on the 4t scooter? The problem is in the composition of the mixture, the candle is clean, as if there is not enough fuel, I raised the needle, the level in the chamber is set, the nozzles are clean, the valves are set
@YoniiXP-sc2tz7 ай бұрын
I have a question my evinrude 200 2 stroke outboard it has some oil on the spark plugs it looked wet but very light is thrat something alarming
@iamdaniel36709 ай бұрын
own a honda city 2019. mileage only 27000 km , honda dealership recommends to change at 100,000KM / 5 years. pls kindly advice. have no issues changing them as per honda service recommendation... but i would like to know if iridium spark plugs are actually a time based thing. thanks.
@FurbyRestorer2 жыл бұрын
I ordered a Husqvarna 128ld. Whenever I got done breaking it in I noticed that it sounded very rich in the low speed needle so being the mechanic I am, I leaned it out and made sure it sounded a bit rich in the high speed needle and it did so I started to use it. Whenever I was done I let her cool off and then I took the plug out to see what type of mixture it was running at. and to my surprise 1/4 of the porcelain was black and the rest was still white. So I tried to richen the high speed a bit more and after holding the throttle fully for about a minute I took the plug out again but it was the same color and instead of it being dry carbon around the threads, it was a bit wet. Does it take more than 30 minutes for the color of the porcelain to change? And also does anyone know the oem specs of the needles?
@netxzero3993 Жыл бұрын
Does spark plug really increase power comparing two different sparkplug and bnew condition?
@allanwilsonrazo47233 жыл бұрын
I used a wd-40 in cleaning a spark plug, what i the effect if i repeated it more frequently?
@brianwalker19333 жыл бұрын
No harm will be done. I use carburettor cleaner and a toothbrush to clean my spark plugs, then use compressed air to finish off the cleaning process.
@stocks4bt2 жыл бұрын
When mechanics say an "engine is running rich" what does that mean in layman terms
@smiling.buddha2 жыл бұрын
It means that in the air fuel mixture, there is more fuel than needed that results in black soot. This may be due to bigger jets or low float height in the carburettor. Other possibility is, it can also be correct amount of fuel but less air due to clogged air filter which again results in to black soot.
@davidBarrel Жыл бұрын
thanks. It would be useful to see how a good used spark plug looks like.
@darrenbrown71346 ай бұрын
Great for moped engine / fuel mix diagnosis!
@coiamo Жыл бұрын
you should actually show as well a good old spark plug, as an example of a good looking engine with old used spark plug, so people can judge a good from bad engine
@perfblue_n3 жыл бұрын
Hello!! I have a Sthil fs94r and it’s revving up then completely shutting off,then takes forever to crank back up and then it won’t rev up at all. Spark screen has been cleaned but didn’t fix anything. Any tips?
@sandrastephens1030 Жыл бұрын
this was super helpful, thank you!
@theshamsi2 жыл бұрын
Very nice video; keep up the good work I have a Honda Car with 1.3 IDSI engine having 8 spark plugs. The engine is powerful but the only center two spark plugs get really black after one week driving. I replaced old park plugs with new NGK spark plugs but the problem is same. Can you kindly guide which is causing this issue?
@billsmith22122 жыл бұрын
A rich issue ? Leaking injectors ? Someone needs to diagnose it .
@bmint2 жыл бұрын
The first one, the acceptable one.. That is an interesting electrode.. what brand plug is that?
@bmint2 жыл бұрын
The brand new cmh is what every plug electrode I’ve ever seen in Canada look like except fine wire plugs, they have a needle.. did you add the notch/groove?
@shrimp8004 Жыл бұрын
How come top radiator hose never has a pressure on it an gouge go to one temp an stay never even barely moves
@theracerdude2 жыл бұрын
When reading plugs should I be starting with a new plug? Like if it’s rich, can I make a carb adjustment put the same plug in and will it show too lean? Or should I put a new plug in?
@Dnasty1 Жыл бұрын
How were you able to tell if that was oil or fuel on the spark plug? Mine is very wet on the threads like your last one but it was a much lighter color. I was assuming it was oil.
@BearThatSwings Жыл бұрын
it is
@MisterManseattle4 ай бұрын
Pulled all 8 of my delco copper plugs from my 5.7 1999 GMC Yukon SLT. All 8 were half bright white and the other half dark in color. Motor has 219k and plugs had approx 9k on them. Is that from leaking spider injectors?
@robertroberts97822 ай бұрын
😮..what did u figure out .mine are like tat too
@MisterManseattle2 ай бұрын
@@robertroberts9782 running rich.
@H3R854LIF3 Жыл бұрын
Why not just clean and adjust the gap why replace if its still good?
@audiomonster303 Жыл бұрын
I am trying to get a Honda 185s Big Red running. It only runs well on choke and the new spark plug after 10 mins of running smelled like burnt electronics? It seems lean? thoughts?
@valterbeicinha9633 Жыл бұрын
Is the last one rich on oil or rich on gas pu rich on both?
@davebean2886 Жыл бұрын
What about a plug that quickly goes to charcoal black?
@Youtubelombocustoms509 ай бұрын
Hi can I send you a video of my spark plugs if you can tell me how it's running . I just deleted my catalytic convertor and now it seems it's running to lean and it has slight hesitant and little misfire .when you put under loan only
@johndezsi42503 жыл бұрын
Well damn it man guess what I'm going to do I'm going to go pull some plugs and watch the video again and see where I'm at. My wife's going to help we were both watching thanks here we go. I want Cocoa Brown
@rowdymclemore48814 ай бұрын
I wish I could send you a picture of my banshee spark plugs LMAO 😂🤣😂 one burnt the tab smooth off and packed it full of aluminum!
@peskycitizen662 жыл бұрын
Thank you for a Spanish commercial even though I'm on English
@lowellwhite88103 жыл бұрын
Very valuable info. Thank you
@CG-iu1nq Жыл бұрын
So if there’s nothing on the plug that probably means I’m not getting fuel?got spark
@Big_Johns3 жыл бұрын
Any idea why your last few videos show up and then switch to "Private" and can't be viewed?
@D4x4Bronc3 жыл бұрын
I'm bad for never changing spark plugs
@asimenyemweso9575 Жыл бұрын
My motor ihave changing some prugs but misfire
@timothylanders31898 ай бұрын
Mid to dark grey or Cocoa/tan is good ;)
@Big_Johns3 жыл бұрын
Nice video Jeremy, you have sparked my interest. Ha!!
@jiebah7 ай бұрын
Very helpfull, thanks!
@JonathanGarcia-pz9kw Жыл бұрын
I put a new battery on my ski and it starts good on the first start but after awhile riding it struggles to turn I have to wait till it cools down a little I was wondering if it was the spark plugs does anyone know ??
@THEMOWERMEDIC1 Жыл бұрын
It’s probably the water pump impeller
@JonathanGarcia-pz9kw Жыл бұрын
I was also thinking old gas maybe , I felled it up with new gas for the first time in 8 months yesterday
@gabrielplaysguitar77282 жыл бұрын
Mine runs too rich idk how to fix it when I turn it on the idle builds up idk
@rickv44732 жыл бұрын
Can i replace only 3 out of 6 plugs? 3 are hard to get to
@THEMOWERMEDIC12 жыл бұрын
Why would you only want to change three?
@rickv44732 жыл бұрын
@@THEMOWERMEDIC1 i just bought the car at 100k mi. I figure it needs plugs changed. Just wondering if changing 3 is gonna causr any problems, to replace the back 3 i would have to loosen motor mounts n tilt engine forward. Its a fwd chevy uplander 08
@MrTchupam2 жыл бұрын
Omg my 4 spark plugs are all different and each one like on of these… ☹️
@TomDobyMowerRepair3 жыл бұрын
wonderful, thank you for this video brother
@ef0418Ай бұрын
Thanks for all
@thompsonbrian87912 жыл бұрын
Mine was white what could that mean 😢
@WilliamSchober-l8g3 ай бұрын
Ah thanks for sharing that.
@lcgcano Жыл бұрын
Low compression issue is my engines problem then.
@walterbutler49339 ай бұрын
Excellent video. New subscriber!
@THEMOWERMEDIC19 ай бұрын
Thanks for the sub new videos coming soon
@Quest4Unknown2 жыл бұрын
Show the top end of the plug will ya!
@THEMOWERMEDIC12 жыл бұрын
😂
@TheToolsOfWizeChoice2 жыл бұрын
great vid. Thank You
@micmike2 жыл бұрын
Don't you think it would be valuable to show what a used plug that was in a good running car should look like?
@THEMOWERMEDIC12 жыл бұрын
Most def.
@tomasofaolain3117 Жыл бұрын
This guy is awesome
@Pgan803 Жыл бұрын
Should also show a plug from a good engine
@THEMOWERMEDIC1 Жыл бұрын
They are all good engines🤷♀️
@noahgamingvideos1584 Жыл бұрын
Cap the burnt stuff is the carbon
@stephenj.p.ingley4033 Жыл бұрын
Perfect...Thanks
@youscaredoftruth67352 жыл бұрын
Right on!!
@jimwesselman3 жыл бұрын
Can you tell the sex of the person operating the equipment?🤪 great video!👍🏻
@daveknight15312 жыл бұрын
Good video but should have compared it to a well tuned one instead of a new one
@THEMOWERMEDIC12 жыл бұрын
The first plug I showed was about as good as you’re going to get with a dirty old two cycle engine