Scotch-Brite Air INTAKE Breather Cleaner SYSTEM On 1976 HARLEY Davidson IRONHEAD Sportster CHOPPER
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- Опубликовано: 27 июл 2023
- Had issues with my 1976 Harley Davidson Ironhead Sportster Chopper Bobber not breathing right through the intake breather cleaner on acceleration. After trying two different air intake breather cleaner systems, I decided to take matters into my own hands and made an air filter out of Scotch-Bite on an already made air cleaner breather system. The results were profound.
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I was willing to bet the Carb, was not getting enough fuel, then after seeing the back-plate gasket I was thinking maybe the breaster hole was plug-up someway. Glad you stuck to your game there Air-Cleaners are worth every penny, and so are fuel filters with all the junk gas out there these days.
Rubber side down and Riding, thanks for the Show.
I had a loose jet in my carb, which caused the exact problem. Ran great until I hammered the throttle and then it would sputter. Tightened jet and solved my problem.
Wish that were the issue with mine.
literally the air cleaner I run on my CV 1980 ironhead good looking and the CV makes the old iron come to life.
Its like adult Saturday Morning Cartoons! Wheres my Cheerios!
I don’t like petcock filters. It’s something you can’t see clogging up. I just use inline filters. Another thing I’d check is the high jet
Carburetor is all clear
I agree and don't think it's fixed yet. My guess is the screen in the tank or shut off valve doesn't allow enough fuel through for extended heavy loads which is easy to check for in the shop and may clean itself out with Sea Foam. The fuel filter was a very good thing and should have been left in. Possible ignition problems but I doubt it's the carb itself. Best of luck to him.
@@SaddleTrampTV mikuni time!
The best part of having drag pipes on my 900 was that break when you let off to shift ...(but I did push it out to the alley before kicking it over in the morning.) My best combination was a Keihin carb,/Hunt magneto/ no battery system (discharge capacitor saves the headlight from blowing.) One twist and first kick to start. Rode it 80's and 90's
Me: Oh yeah that looks safe.
Tramp: I don’t know I’m not an engineer
😂😂
I did the opposite i removed the filter from my tank and left the in line filter it worked for me
Good job keep tinkering you will get it running the way you like, great content! safe travels
Thanks, man. It's an adventure
I think it needs a smaller idol jet. Getting fat when the accelerator pump shoot its load. Try going down a couple three sizes and see if that helps. Maybe drop your needle if it's adjustable
Glad you are getting it figured out. Always something. 👍
Patience is one thing I have None of
Certainly is a virtue
Nice job works wel old skool rules,its always nice to figger it out yourself .
If you use the Scotchbrite with soap the inside of the engine will get really clean when it rains 😅
Lol
Well you know it is wasn't getting enough air for sure now. Sometime it is a trial and error process. Glad she is running better.
Way easier to diagnose than today's bike issues. Good thing today's bikes don't have that many issues though.
Maybe premature but CHK the slide for black suit around the needle and if it has suction when pushing it up. FYI V-Twin catalog has air cleaner kits for those who use a CV carb an Old bikes. You car run round or the ham can air cover ✌️
Hey, had a same problem with EVO sportster, finally problem found was blocked overflow/hose of the float chamber which is also acting as a float chamber breather. If its somewhat blocked the level of gas inside the chamber is never correct when reaches high revs resulting exactly those issues.
I have 5 bikes currently. I have run bendix,cv,s and s, mikuni carbs . I gave up on bendix,mikuni carbs . I RUN CV AND S AND S ONLY!!! AND I REWORK THEM TOO FIT THE BIKE !!! NOW I HAVE VERY LITTLE ISSUES WITH MY CARBS. LEARN EM KNOW EM !!!
I run a Bendix carb and have had zero problems.. my husband on the other hand used to have a mikuni then switched to a Bendix thinking it would solve that problem with his, but made no difference.. I know we both have fuel filters in line only and even with all the switching with his he still has a similar problem.. I've decided I'm going to get to the bottom of that issue! I've just gotta keep researching it more!
Check fuel float level, it may need a little more fuel
Done that. All good
If it runs better with no AC, it means it was getting too much fuel to begin with. Not to say the float could’ve been out of wack or sticking, drowning her but it would happen all the time, especially at idle.
No point in trying to chase this problem until you are 100% sure the seals on the engine side of the carb are sorted.Hope you get it sorted.
They're good
Those foam filters suck!! Can't tell you how many V8 hot rods I've seen catch them on fire and then suck that junk on through the engine. Glad the scotch Brite got her going good. Another great video
Hey, man! Yeah I agree. The last time I used one of those filters, the bike ran like crap until it blew a big hole through it, and then it ran ran better. Lol
Making progress some times problem solving is half the fun
It can be at times
Yeah, you have the patience of Job!! Thanks for the video. Great to see someone actually work on a bike and make it run.
so obviously if the scotch bright works, a helping of Mr Clean and some Charmin will really do the trick 😂 what do i kno! you're contraptions and solutions continue to amaze me! like magic! Dare i say.........Houdini perhaps !
Lol
Well there you go. Backyard problem solving at its best! If it works I’d go with it.
Great video man. Glad you're back.
Hey Corey Red rider from bc has brand new video out , specifically on intake filters, right down to the math, good to see you well tramp👍🏻👍🏻👍🏻
Another thing I use is Lucas fuel conditioner, it’s like changing plugs n wires , well worth a try , I love it, use in bikes cars lawnmowers deisel, etc👍🏻👍🏻👍🏻
Good you got it going better! Good video!
Way to stay with it, and as always thanks for sharing.
You bet
Glad you figured out something that will work for you. Take care ...Ride Safe!
Always great content! Glad you got it running🤙✌
Good fix man!
Great info on getting the job fixed,a little filter issue can be a pain in the ass but u took care of that for so many with the same problem,great day amigo
Corey, sometimes it takes a lot of effort to get things to work right. So it was fun to see this one come out right no matter what filtering material you used. Thanks for Sharing! P.S. Going to go out a buy a case of Scotch Bright tomorrow! 🙃🙂
That’s fantastic that it worked Tramp
Thanks Shane.
This is great content, you guys posting on your channels is a good resource with some real golden nuggets that might otherwise remain a mystery. I watched one from Scotty a little while back covering intake manifold air leaks and how initially, the symptoms aren't obvious, but ultimately how important the cause is to deal with.. ..and of course, once you know..
Another was a recent Shadetree FXR double, which featured a gentleman named Joe, who was certainly, all round someone we'd be blessed to know, but maybe especially, he came across as a carb magician.
Awesome video, Saddle Tramp. The Ironhead sounded really good (at the end).
Thanks, my friend. Really needed that.
Another good one 👍👍
Thanks for the visit, Shane
Trial by fire. It works !
Nicely done brother👊🏼😎
Thank you, Dan
Id recommend K&N filter oil on that Scotchbrite -- and watch the rain! Lol
I did this too on my Ironhead.
Love the sound !
Ride safe in the LORD'S grace bro.
Thanks for the tip
@@SaddleTrampTV hey! Ditto. I'm always encouraged by your channel, sir.
red rider just did a vid on air cleaner volume, should check it out really helpful
yeah look at the HUGE airboxes in motor scooters.
I'll do that
I am not surpised it works...I have been using the stuff for gas trimer filters for ages...
Been a minute sense I completely watched your video but this content was like the old Tramp or maybe the first Tramp videos anyway great content and Thanks for your work.
Thank you, Jim.
I ran an S&S Super E with a stock rebuild a set of upswept Paugho Pipes... half a kick and it started, would run I 10 and all around SanBerDoo...grab a handful and off I went.
It does really sound good,
Agreed!
That’s a sweet bike l like the sound it makes
Makes two of us, man!
Those CV’s are notorious for lean carb farting even on 88”s. If I was a guessing man, I’d think it was your slide not getting enough CFM’s when wicking the throttle and she’s drowning. I bet a Mikuni would work great in an iron . Good luck Corey, hope you figure her out.
Yes Iron heads and Evo Sportys love the Mikuni. First thing I change too.on them.
I run the same style cleaner on my 79. I went to the hardware store and got the high class Scotch-brite filter, been like that for years. CV carb are great they just need a proper rebuild. You need Carburetor Bob! JUST the SCOTCH-BRITE
Thanks for sharing
Nice troubleshooting it has been a while since I watched one of your videos, and I'm glad to see you are still learning as you go.
Hey, man! Good to see you again!
@@SaddleTrampTV Hope I can help brother, ain't working on bikes lately due to a health condition so I got a little extra time to check out some of the good channels on you tube
I just put new jet and tube in mine, had to go with a more open air filter to make it not choke out. Love the video’s, keep up the good work!
Nice 👍
I run a Bendix with a Harper charger which forces more air I think, but it works great..
Sounds to me like your coil is breaking down at cruising rpms when you put it under a load. If it is the coil, it'll run ok at lower rpms and at higher rpms if there's enough torque due to gearing to get it past the break down area but it'll miss, spit, pop and crack if you're in a taller gear at cruising speed and holding the throttle wide open. Good luck brother!
my experience is that when a coil breaks down it will not run right until it cools down not a rev related problem. just sayin'.
@@dogpaw775That's what I've always figured too.
@@dogpaw775 %100 or at least %99 lol
Cautiously hopeful is the term I use at times. My issue with the same symptoms was my air filter was too dense ( small). Was smutting my plugs and tailpipe. Basically running my bike with a partial choke. Anyway, enjoy the vids. As always..... keep on keeping on brother.
Yeah, I post as I watch. More interactive for me. Give an opinion and see how it turns out. Then of course your vid says the same thing. Doesn't always work out that way but I tend to learn things better that way. Sharpens my thinking outside the box to study someone else's thought process. Again, good video and thanks for taking the time to post and sharing your skillet and knowledge.
pushrod quad seals for those leaky rocker shaft end caps 🐱
l put a none S&S tear drop air filter on my bike... drowned it in fuel.... so l got a cut open hypa air fiter runs heaps better now.. cheers
I had an old 1972 AMF vintage bikes, stretched, raked and a hardtail. I finally had it bored to 1200 and all the interals upgraded by someone that knew what they were doing. The engine as it came from the factory was a mess.
Sometimes it was hit and miss with those motors back then.
You know more than I do for sure about these engines. My troubleshooting mind leads to something wrong with slide,needle, main jet. Accelerator pump. Float level good? Timing not advancing? Spark plug gap? Weak spark?Good content bro
If it has point and condenser look at that run with the choke on then off and you could run the gas tank cockpit pick on reserve
Adjust the excellerater pump to put more gas in when U twist the throttle.
CV's don't have a pump adjustment.
Hey man, why dont you call tatro when your having issues ....you know he would be glad to help. Ive talked to himna couple times on the phone here from PA. Very cool guy, willing to help and give advice.
He's a good dude. Helped me out once before.
m telling ya man get a HRS40 for your sporty and a 42 for your big twins that need carbs. Buy a aem air/fuel meter weld a O2 bung in the front pipe 18" from the engine. and rear your air fuel by the gauge. Stsrt with wide open throttle (main jet) then cruise (needle highth) Lastly off idel and low speed (mixture screw and pilot jet) You want your idle screw to be turned out about 2 to 2.5 turns If it is under 2 go one jet smaller over 3 go one piolet jet larger. Do the rest by air fuel reading. I've probably tuned 35 or more bikes this way over the last 20 years with no complaints as well as my onw street and race bikes with great results
If you have some CV parts carbs in your boneyard, you could try to clip off an inch or two of your vacuum slide spring to open the slide faster under load. They sell weaker springs, or shorter springs to accomplish the same thing. With the more restrictive air cleaners, there may be a vacuum imbalance and the slide is not opening quick enough. Or you might have a pinhole in the slide vacuum diaphram. I thought that thought when you mentioned gas splashing out of the throat of the carb, which might have the accelerator pumpshot hitting the slide when it's down. Also, maybe look in the carb with the air cleaner off and see where the pumpshot goes when you twist the throttle. You can tweek the squirter to have it shoot at the bevel on the bottom of the slide.it could have loosened up and pointing in a bad direction. That's a quick, free test. It's good that you got it going better, but if it ran with the air cleaner before, then something happened to affect the mixture. But you know that. Just throwing some crap out there against the wall and seeing what sticks! Take care, Corey.
Odds are I’m going to enjoy this because I’m part Scottish.
Lol
Sometimes it’s fuel venting. If you don’t have a vented gas cap you can drill a small hole in yours and it will help when accelerating under load.
Yeah. I exhausted all the scenarios. I guess I should've said that in this video.
Hey brother, always enjoy your content, vibe, and taste in tunes. I'm not trying to tell you what to do. But I definitely recommend swapping the fuel hose for braided steel. Especially since it's so close to the motor. Heat soak can affect your performance too. I'm no certified harley tech, but from my ears it sounds like the timing may be slightly off at a higher rpm. It could be a cam is set at the wrong time. If you haven't already eliminated them off the list. Peace and love
Hey thanks, man.
The Bad Boy I won is an electrical NIGHTMARE.... BUT I'm trying
You won a bad boy ? In a raffle or something? That's pretty cool man.
@@whatyoumakeofit6635 ruclips.net/video/YqnJrRYxIfs/видео.html
Check the flyweights behind the points...could be weak or damaged springs...
Did that. They're fine.
i have always got rid of the in tank fuel filters and just ran inline filters.
I've got a tank like that but orange in color!
Awesome!
Trouble is youve leaned the mixture, across the whole rev range. Id go back to a better air filter and try an accelerator pump adjustment. Might be over fuelling when you crack the throttle.
Yeah you're probably right
That is such a cool bike. I love the paint scheme on the tank. Did you ever check the fuel filter inside the tank? Your neighbours must think you’re a motorcycle maniac ripping up and down the streets all the time lol !!!
Turned out to be timing and too big of a main jet.
remove fuel screen from pitcock and try it for a short ride, no fuel filter. "IF" cures problem reinstall inline fuel filter. If still don't cure problem you know for sure to look some place else. safe ridin rubber down
Wander if thats why you look at old chopper builds from the 60's an 70's, most don't have air filters
Gotta have an air filter.
You should be able to hold your air filter up to the light and see through it. But your issue to me sounds like a carb cleaning and adjustment.
I have found hogshair is good I used it for commercial refrigeration filters on condenser...s
Its funny when I saw the scotch bright and I thought I would put window screen to keep it sucking into the carb and apparently great minds think alike.
I guess so
Yeah I always thought those filters starve the carburetor. And the kind that looks like a beehive holes
Sounds like the vacuum diaphragm is warped
I used to race an old CZ motocross bike. It ran fantastic when it was in the workshop but when I came to race it it would do just what your bike did. They had crap Russian carbs that leaked so I replaced it with a Bing carb. Was that the problem no. It has points and at higher RPM the condenser was not pulling out power. A part that cost nothing and you never think about.
check rubber diaphram in top of carb when they rip or fail they cause same symptoms
Did that. All good
I'm having carb woes right now too.
I think I've got it, but the cheap, plastic throttle broke, so I'm waiting for a new one.
If it doesn't work now, the next step is adjustment with a sledge hammer.
Lol... I hear ya, man. Been there myself.
@@SaddleTrampTV
I've been fighting with these things for 50yrs, and I'm kinda getting burned out on it.
Over the last few years, I've seen mechanical problems that defy all reason and logic, in everything that has an engine.
Scotch Brite is great till your first backfire and it melts and won't pull air .that's why I use copper mesh wired to the outside of the filter frame. Keep on tinkering you will get it figured out. Bendix with a adjustable main jet works great or a mikuni 42 mm flat slide .
Thanks for the info
Its your air fuel mixture mine did same also check donut to intake
Would love to see the set up of the CV carb to the iron head . Love Keihin carb but butter fly parts are hard to come by . Just a thought for a video and no cost of parts .
Just a standard CV with a 48 slow jet and 175 main.
@@SaddleTrampTV I meant for bolting up and supports & what takes for the change . Good luck with the bikes I have 5 of my own , I know the Pain .
Mine was doing that because it had straight pipes
It needs attitude adjustment bigger hammer .Going with tride and true you used before.
Sounds like a possible ignition issue to me??? Are you running points & condenser? flyweight/spring spark advance?(tiny springs get weak/flyweights get worn, stick from dirt or dried grease )...Coil wires?(thin wires & plug wires + connectors???) Coil itself ? (starts to hesitate when coil gets hot...???) Just grasping at straws... > You mentioned it been a while since adjusting pushrods...??? Usually they will get noisy if they're excessively out of adjustment ...Used to check them about every week or so WAY back when I was riding my XLH daily...Also recall years ago a friend's early '80's XL(IIRC) I had worked on...chased around for a couple hours troubleshooting a rough running condition at certain RPMs/gear & turned out to be a bad condenser ...Figured it out when running engine with ignition cover off & noticed excessive arcing = points eventually pit (IIRC ...at the time I was probably thinking early 1980's XL = an electronic ignition but it had points...???) ...Just making a few hopefully helpful suggestions to test, check or trial & error...
Thanks for the input
👍
Thank you
I've had a couple of riders tell me they don't like fuel injection. That carburetors are easier to deal with if you have a problem. I'm gonna send them to this post the next time I hear that.
With EFI, you a degree in electronics just about, but hardly is there an issue with them. With carbs, you just need a little common sense and process of elimination.
@@SaddleTrampTV it's sort of the same with injection. If a cylinder isn't running right, process of elimination will tell you which injector isn't working. But, is it the injector or something else. Bad connection, controller, etc. etc. etc. I guess more possibilities than carburetors.
@@gregorytubbs3444but can all of that troubleshooting be done by someone that doesn't have thousands of dollars for a laptop they don't have and the software needed to perform the work on efi? Couple of screwdrivers and you can get a carb figured on the side of the road if need be.
@@djd34d14 my bike has no data port like a car. Any electronic faults show on the display. The only troubleshooting equipment I'd probably need is a VOM meter.
My bike was doing that I got a Sportster 883 it's a 90 model I put spark plugs and I've been running nothing but 93 Shell but my bike doesn't do it anymore and my fuel filter and everything is inline inline like yours was I even put a brand new petcock from drag specialties that had a filter built into it also then I've got clear fuel line and a see-through filter but my bike quit doing that but it would run just like yours for a minute then it would be okay
might be good to check that the filter back plate is not blocking the vacuum slide vent as thats what it sounds like
It's not
The c v carb has a port that provides vacuum to the diafram. Look into the carb
The later ones do. This is a 1990 carb. The diaphram petcocks didn't come out until about 99 to 2000.
First thing I get rid of on my carbs. Get a Pingel or non bladder equivalent and 86 the VOES.
have you checked to see if it is vapor locking when you give it full throttle? loosen the gas cap a bit
All clear
Hype Hype!! AMF my name lol
I am getting ready to get a 77 Sportser back on the road after it has sat in storage for over 10 years. First I'm going to put the gears back into the transmission, then change all the fluids. What all would you suggest I do? Nothing was done before it was stored in garage for 11 years, but its paid for, so I'd like to get it road ready before spring/summer. Would I be better off taking it to an actual motorcycle mechanic?
Changing fluids is an excellent idea. I would check tires, brakes, ignition components. Once it's fired up, let it idle while you check for leaks. It's likely there may be some dry rot on some seals and gaskets.
@@SaddleTrampTV the tires were brand new, i believe he put them on in 2010 or 2011, they still have the rubber things on them so no wear. I however was advised to put new on since they are so old. I bought it in 2012 (started it up, ran well, sounded great, but didnt ride it) while on pipeline and brought it home in 2013, it ran kinda rough, no rear brakes, so it was kinda a minor project, but events happened and I ended up having to leave it stored. I will surely get it going throughout this winter. Thank you! I will subscribe
Hott Damn on time
Scotch bright pads are embedded with abrasives. Good luck.
I always thought you were supposed to check valve clearance with bike stone cold, not warmed up?
Your're right. When it's cold.
For that particular issue, I woild check in this order; air, fuel, ignition. Check for intake leak. Check for fuel restriction. Check spark. Might be the coil going bad.
Absolutely. Replace the intake seals. No excuses. While the carbs off, triple clean it. Make sure of the jetting. Adjust the pushrods. Still NG? It's in the ignition.
@@tomdillon6758 Well, it ran better with no AC, so that pretty much eliminates seals, as lean popping would only get worse and he’d have carb farting.
If it was running good at one point, changing jets would be masking the problem.
Timing and pushrods ( possibly) but you would hear or feel throughout the whole rpm range with points, maybe if it was an electronic ignition with a map sensor, then absolutely.
Not knocking your take, just a little rebuttal lol.
It gets better with more air or rolling the throttle which to me sounds like a hanging slide or just not enough CFM on WFO to move it and it’s drowning. I’d throw a Mikuni on and if it’s fixed, most likely the slide or diaphragm.