WHO SAYS NIKKI CARBURETORS SUCK?MY BLACK BEAUTY MURRAY 12.5HP BRIGGS FLATHEAD MOTOR RUNS AWESOME NOW

Hey guys, how you doing? It's Henry at Mowers and Blowers Today I'm back at my mother's house to repair the good old black beauty black beauty I've had for over 25 years in my family's life I bought a brand new from Home Depot, and it's run like a champ still the original flathead 12.5 inch It's been at my mom's house here for about 15 years That's when I got a whole bunch of other lawnmowers that were better than this So I kept it for myself, but I figured I didn't want to sell my original black beauty So I keep it at my mother's house to do her yard This thing barely fits into the backyard because the alley that leads from the front to the back is exactly 40 inches and that's a 40 inch deck anyway last time that I was here The tire fell off the bead and I couldn't get it back on the bead because my mother's house doesn't have an air compressor So I brought the tire home. I Replaced it back on the bead again, and now I'm gonna put the tire back on again But the past few times I've been here the engine doesn't Run right except on choke which means the carburetor is probably clogged Which is strange because I have a fuel shutoff, and I always turn it off when I Am not using it But you never know maybe the fuel shutoffs bad and fuel leaked in there and storage and there's some gunk in there anyway I gotta check it out. So today. I brought my fixed wheel or tire I have a Tire inflator in case I need it someday. I'll just leave it here. That's so many some tools some fuel lines I May need them to replace to fix the carburetor in case the carburetor is really bad I've got a Nicky carb over here from a recent machine that I took it off of or an engine with another fuel line and This is the Walbro type carburetor off of a flathead engine Which this is and it looks to be in really good condition This is off of the 8.5 horsepower engine that I got for free locally in my area I also don't have a jack around here in my mom's house, so I brought this along this I picked up the street some time a few years ago, and it's really cool It's not it won't hold you know Tremendous amounts of weight, but good enough to jack up a lawn tractor just to repair a wheel You know figure I keep this up my mom's house, too. So let's get going and replace that wheel This really isn't meant to be a jack you know I mean you can't really even turn this with your hands Key out of the keyway And it's well lubricated Find where the slot is Push it into the screwdriver Now the key is in the keyway the washer over it the c-clip on top Get a pair of channel locks on a high setting compress it down Rotate it so that little slot goes Where the keyway is? It's a beautiful day today 53 degrees, it's December 17th It's a vitamin D. Let me show you how it runs Got gas in it fuel shut off is off Watch choke I hope it's not the valves because this is a flathead engine and if the valves go it's from many many years of use and The expansion of the valves being out of spec There's really not a whole lot to do with that you can do about it except to grind the valves slightly but Usually when that happens, it's not even worth it. You just have to part out the engine and throw it away or something unfortunately But let's take the carburetor off and just see what's if it's really dirty or not So it runs like crap. I recently did just change the air filter We'll put the fuel shut off on so that no fuel goes into the carb as we take off the Bowl, I'm just gonna take the bowl nut off Of course, it's not half-inch Since when is it a 7 16ths? Well, I guess for these 12 horsepower or less L heads or flatheads it is Plenty of fuel Is pouring out? All right. So look It has grass in it It has this big piece of straw or grass in it Right there this thing This thing was probably getting in the way of the emulsion. That's it It's good Other than that, it's pretty clean carburetor exception of the exterior Just really dirty on the outside that caked on grease and oil so yeah, even that little bit of Debris in there get sucked up the emulsion and causes your Carburetor to not run, right All it takes is a little speck If it blocks the emulsion Limited amount of fuel is getting up to your carburetor That's probably it I'm gonna clean this out and then we'll try it again while I'm here and blow carb spray all around the area including the emulsion Now, let's check for flow Let's see if there's anything blocking this line. See if it flows out pretty well It's just dripping really Not really a high flow wouldn't you agree? Maybe the fuel filters kind of clogged That's not that good a flow let's remove this part of the Fuel shut off. I Can tell it this this fuel lines really crispy and stiff Think I should replace that fuel line. This one's pretty rubbery though. But then if it's really rubbery, it could mean that it's collapsed decayed Yeah, I can't even get this off Can you get it off? Stick this part off the rubbery part and see if that flow is good And I just broke the fuel shut off just snapped Let's see the flow of this one Look at this it's all the way down down and there's nothing coming out of it. So there's something blocking This fuel line here whether it's collapsed Or even the fuel filter Is bad, and of course I didn't bring any fill filters Look at this Nothing's coming out So on So I just checked there's no gas Right out of gas. So I'm just gonna blow through and see if I can blow freely It's fine That's a good fuel line right there. Let's blow through the fuel filter It's clear. There's nothing wrong with this fuel filter either. I Do not have another fuel shut off. So I'm gonna have to bring that back next time. I'm gonna replace this hose We're gonna keep this fuel filter I'm gonna put a new line on to here under there and I'll bring a fuel shut off next time to fix You don't just break this Careful not to break the nozzle from the carburetor. Otherwise, you'd have to replace the carburetor Put the nozzle to the carburetor, you know what sometimes you can just take this off That and I'll use the other nozzle from the other carburetor and replace it So dirty over here, too Here's the nut from the carburetor bowl don't see don't see a Gasket though unless it's on the bowl It's not it's not even a gasket on here. Can you believe it? How does it not leak I'll take the other carburetors bowl and they ask gasket and nut and we'll replace it Here's the carburetor from the 8.5 flathead It is the same exact carburetor as this one Here's the fuel nozzle from the carburetor Let's let me not break this one Man it won't come off. Should I just replace this whole carburetor on there? But this has a good nut and a good gasket as you can see Let's take it off and see it's clean or not Self-inflicted wounds so far bad example Wow Super clean man. I think because of this we're gonna have to use this carburetor This is like a new carburetor. I Think I'm just gonna replace this And put it on there It's identical Damn it. I have limited tools here As you guys saw from time-lapse I replaced that new carburetor It looked really new to me Much better condition than what was on there. I was the original carburetor from 25 years ago. So Got the new carburetor on there. It was really dirty. So I had to spray it with some degreaser So it looks cleaner now, I have a new fuel line going from the fuel filter which I tested to the carburetor I need to add a fuel shut off next time because these tend to get the needle gets tends to get hung up and then It flows fuel into the mouth and then into the crankcase and Then you got fuel mixed into your oil, which is why I always have a fuel shut off But for now, look we just filled up some gas doesn't seem to be leaking Fire it up after I check the oil And see if this thing runs good The oil was actually down to below the ad line Surprising this thing kind of drinks a little bit of oil there. I'm just gonna top it off with about six ounces five ounces Of some SAE 30. All right. Let's see if it runs good Couldn't be worse than four, right So it doesn't really run as good as before because this carburetor isn't exactly the same as the other one It has a pilot jet screw here and it also has a fuel mixture screw here, but the fuel mixture Looks like a pilot jet type nut and not like a needle So you can't really adjust it. That's like a Non-adjustable. I mean you're supposed to just turn it in It runs better with this plug out So now I'm thinking maybe I should put the old carburetor back on and just put the new bowl I have to study it a little bit So I actually took the pilot jet kind of screw out and I put the original Fuel mixture screw tight in there. It doesn't really fit, right? So I don't think it's meant for it because this carburetor was meant for an 8.5 Horsepower engine and so it didn't take the pin, you know what I mean? So I even tried this now and it doesn't really run right so I'm almost thinking that I need to try to get this plastic nozzle off the fuel input and try to put it on here and Then put this original Carburetor back on there again. I know I risk breaking this one, too You know, the other one was just so old and brittle that just touching it. I But I'm gonna try to take this off and put it on here and use this carburetor Because this carburetor is meant for this engine 12.5. And I think because this is for an 8.5 the Jets aren't drilled For a 12.5, which is why it's kind of starving for gas, you know It's running too lean You want it to run more rich with this one? I think that's what I'm gonna try to do if I don't do it and I break this one, too. I'll have to try another carburetor Okay, I just put on a Nicky carb took the fuel solenoid off of the bottom and put the regular nut on there because I don't want the Fuel solenoid. Let's see if it runs better now That's three carbs. I just changed. Oh All the way down Well, there are fake Nicky's and there are real Nicky's this one's actually a real Nicky because it actually says Nicky on it I didn't have to go through all this trouble if I was just a little bit more careful in removing stuff because remember We wouldn't be in this concoction and this mess I didn't just break the input nozzle by trying to tear it off because I was impatient If I took care in removing that old fuel line I probably just had to clean that carburetor and it would have been fine, but I do feel much better now because It sounds better than the original. So I broke the fuel nozzle off of this one or this one and This one over here was for the 8.5, which means that the Jets were drilled to Lean it had to be drilled bigger to accommodate a 12.5 horsepower engine See this while being a 12.5 horsepower engine. I was an idiot and I broke the fuel nozzle off of this I mean I could still probably use this in the future, you know the parts from it and stuff It was just dirty and it needed a new gasket and this one had a good one As you can see I took the nut off of this one the 8.5 had a brand new gasket in it The carburetor is practically new And I put it on the Nikki where this fuel solenoid used to be You guys know I get rid of these fuel solenoids anyway, because they're nothing but trouble I know it's the same thread just put the nut back in there. Now. I have no fuel solenoid for that as original So we got a new Fuel line on there. I do need to put on a fuel Shut off the next time I come here to store this for the winter. You don't want fuel Continually going to the carburetor and if you're like tilted wrong or something, it'll not seat You know flood the engine. Anyway, this block beauty deserved a little bit of maintenance and a carburetor tune-up today We just replaced the carburetor with a Nikki And some new fuel lines now runs fantastic Love it Anyway, I hope you guys enjoyed the episode. We'll see you guys next time on mowers and blowers Anyway, I hope you guys enjoyed the video. Remember to Like share and subscribe subscribe or subscribe Subscribe subscribe subscribe subscribe subscribe subscribe subscribe to it We need you to donate a buck or two hit the subscribe button. It's free. We'll see you guys next time on mowers and blowers