MT15 / R15 V3 Service | Fix Exhaust Gas Leaking Issue #mt15 #r15 #maintenance #automobile

In my previous video, you might have already seen how to replace coolant in MT15. And this one will be a dedicated video on how to service your motorcycle by yourself. And if you have not watched the previous video, I'll leave the link for which in the iCard above. So this one will be an interesting one, so stay along. As with all the services that I do, I'll start with flushing the engine. It is very important to use a good quality flush and in this case I'm using Motul. Making sure that the engine flush that you have purchased is actually sealed and pouring the entire container into the engine oil that is already there. After emptying the entire container, idle your motorcycle for 10 to 15 minutes. Make sure that you don't rev the engine and once it reaches 15 minutes, turn off the ignition and let your motorcycle cool down for a couple of minutes. Once this is done, it's time to drain the engine oil. And in this case with the MT15, the drain bolt is actually located below the engine. So opening the drain bolt, you also get a spring and a strainer. While the engine oil is draining, let's move on to remove the oil filter. It is held by three 8mm bolts which you need to remove in crisscross pattern. Once the oil filter housing cap is removed, let's go ahead and take out the oil filter. You can see the condition of the old oil filter here and it is very important to replace this on every service. Now speaking of the oil filter housing cap, I have removed the old o-ring and I am going to clean the entire groove using a clean piece of cloth and a screwdriver. Once the cleaning is done, you can insert the o-ring, make sure that you replace it with a brand new one and make sure that the o-ring is seated properly onto its groove that is provided. Now this is a new oil filter that I have purchased from Yamaha and I am going to replace this but before that, we need to pre-fill it with fresh engine oil. Now after making sure that the o-ring is lubricated, install the oil filter chamber cap back and tighten it with 8mm bolts that you removed before in a crisscross pattern. By this time, all your old engine oil might have already drained, now let's move on to cleaning the drain bolt. I am using WD-40 here to clean the drain bolt completely and the same process I am following to clean the strainer too. Once everything is thoroughly cleaned, I am pre-lubricating the o-ring and installing it on the drain bolt. Now before installing the drain bolt back, don't forget to insert the spring and the strainer and tighten it until snug fit. Now comes to the engine oil. I am going to use Motul 300B 10W-40 engine oil for this motorcycle and this is one of the best engine oil that you can use on MT or R15s. Now let's move on to removing the air filter. For this, you need to start with removing your rider or pillion seat and take out the entire seat out and oh god look at the condition of this. If you want me to make a dedicated video on how to do an interior cleaning for your motorcycle, comment down below. Now off camera, I will be removing all the side and tank panels, in order to get easy access to the airbox. Now the airbox itself is held by 4 screws which we need to remove in a criss cross pattern. Now gently lift up the airbox cap and now you can take out the old air filter. For comparison, this is a new air filter that we purchased from Yamaha and you can see the condition over here. Now the installation is opposite of removal, so now I am going to replace the old one with the brand new one. Install it in place and tighten all the 4 screws that you removed before. Before we wind up with the service, one final thing I would like to do is adding a carbon cleaner. This time I will be using Yamaha's own carbon cleaner here. I am going to empty this entire bottle onto the tank full and rest this carbon cleaner does its job. One particular issue that the motorcycle owner has been facing is air leaking from the header. This had happened when the motorcycle got hit by a speed breaker. The common reason would be a gasket leak or if in the worst case, the header pipe stud bolt might have got bent. Now in order to get access to the gasket, we need to remove the belly pan first. I am also going to loosen the exhaust bolt so that we can have some room to play with while we remove the header from the engine. I am going to use an impact wrench to make the work easier. Removing the 2 bolts holding the entire bend pipe onto the header, you can see the damaged gasket already. Using a flat head screwdriver, let's take out the old gasket. Before going ahead and installing the new gasket, we need to make sure that the surface is actually clean. I am going to use WD-40 to lubricate all the dirt and grime and I am going to agitate it with a flat head screwdriver. This is the new header gasket that I purchased from Yamaha and I am going to install this onto the motorcycle. In comparison with the old one, you can see how damaged the old gasket is which obviously had to do something with the exhaust gas leaking. Now speaking of the new gasket itself, there are 2 phases here. One is of the plain side and one with a groove. The grooved surface will actually have to face the engine side and the soft plain surface has to be facing towards the bend pipe or exhaust side. Now aligning and installing the gasket in place and I am going to tap it slightly so that it will be seated onto its groove. Now it's just a matter of installing the header pipe back and tightening both the stud bolts in a crisscross pattern. Remember we loosened the bolt of the muffler? Don't forget to tighten it. And that completes the entire servicing and fixing of your exhaust gasket leak. I hope this video was informative enough and if you people like this video, do consider subscribing to Acuonix and follow me on Instagram for more changes to street content.