วีดีโอ

@@givikokakhetelidze8563 Like it says in both the video and description. 3.8L.

Not sure how it works now, this is a 6 year old video.

It sits pretty tight so I would suggest that you brake it loose while the fork is still in the clamp on the bike and then screw it out like in the video.

Thanks! I can’t really remember the exact size of everything but it was all standard plumbing so what I did was that I took my QEV and solenoid to the hardware store and just started piecing everything together until it was complete which is a pretty foolproof way of doing it. Sorry if this isn’t a very specific answer to your question.

This should be it but I’m not sure if it has changed because it was almost 5 years ago I bought mine. www.blackwidowexhausts.co.uk/ybr-125-2004---2017-full-exhaust-system-200mm-round-stainless-silencer-20970-p.asp

@@ScuffedMechanic thank you

.​

Without the db-killer in I think it is considered to be not legal but when I had this it was never a problem and my bigger bike which is much louder have never been stopped.

Yes, that works perfectly.

The cable that pulls when opening the throttle should be the one that sits a bit higher on the right side as seen in the video.

Yes, it’s kinda bad because it’s cropped down from a horizontal video.

​@@ScuffedMechanicwhat did you do for reverse gear? Bike gearbox?

@Muschi-mu4gb No reverse gear.

I have no idea. This was my neighbor’s project and he sold it sometime after this video.

That’s not necessary, I primed the oil filter and that is enough.

Thank you!

There is a screen in the bottom of the frame's oil tank where the oil line goes in below the front drain plug, this screen will catch any impurities that might get in though the oil or dipstick oil cap I always check and clean it but it's probably not as important as checking and cleaning the screen in the sump plate that the sump plug screws into under the engine, the sump plate is held in place by six Allen head screws and you'll also have to remove the skid plate under the frame to get to it, the screen in the sump plate is where you will find any metal shavings or shrapnel from inside the engine and gearbox There is also a bleed screw above the oil filter cover that is used to bleed the air from the oil filter, it's tricky because you have to loosen it very carefully and just enough for the air to pass the screw without removing it If you inadvertently remove the bleed screw you could get oil all over your ceiling so have a piece of rag handy to put over it and be ready to hit the kill switch to stop the engine if it happens 🤗

Black widow exhaust 200mm model

Probably not

45mm

It’s normally closed, the spring is there to keep it closed.

You are not supposed to remove any seals.

150ml per leg

I’m not sure what you mean with that but the pretty much the whole process is shown in the video.

I’m not really sure what the pressure rating is but if you are going to use a paintball tank you should just get an extra pressure regulator because 600-800 psi is still going to be way to much.

Use a paintball tank with a regulator on the output and a regular remote line, inline burst disc is always a good option for extra safety. The rating of your QEV and valve gear should be rated higher than the psi you intend to use for safety margin. The QE-02 QEV can handle anywhere up to 120psi, anymore than that and its out of the working preasure. If you want to shoot airsoft bb's then 60-80 psi is way more than enough for some fun.

It could be the spring that is maybe to strong or too long. Try with different springs and make sure that you have everything connected right.

Thanks! I just used a a spring that was the right size for the plunger, you want a spring that cups the plunger without it getting stuck inside.

​@@ScuffedMechanicwhat would happen if the spring wasn't there ? Is it mandatory?

@elsunshine9976 without the spring the QEV isn’t self closing so you would have to reset it manually by pushing the plunger into place again.

The QEV acts as a dump valve so it can release a lot of air in a short amount of time. The solenoid can’t handle as much pressure and isn’t as quick. The QEV always needs another valve to activate.

Yes, that is also what I used.

Does it feel like something is hitting on the inside or is it just sound?

@@ScuffedMechanic It's just a sound and you can always hear it in the pits, or when you push the fork sharply (like on my video). Could it be some part inside is worn out? A small sleeve or spring, for example. But I compared all the disassembled parts and did not notice anything different.

I don’t think it’s anything to worry about and if you have disassembled the forks and not seen anything wrong it is probably just random noise.

How much oil did you put in ?

@garethcarter12 150ml per leg

It’s a regular YBR from 2009 (fuel injection) I don’t really remember the fuel average but it was definitely cheap.

@@ScuffedMechanic thanks

Size 14 hex-key.

@@ScuffedMechanic Thanks, in the meantime I found out that the T70 torx key they recommend for the inner rod is also good for the fork top bolt.

It’s just regulated by how long you hold the valve open.

It depends on how long you hold down the button. It’s usually just one really aggressive shot but you can make circuit board or a returning hammer to get a short and controlled burst of air.

You can’t get it out without the long extension. This was probably the most annoying part of this repair.

It would probably work with higher pressure but you might have to put a bigger battery to the solenoid. I’m testing with lower pressure because of the volume of the tank.

GPR Deeptone Carbon

You can clearly see what’s happening in the video.

@@ScuffedMechanic Exactly and I find it better this way some commentaries bore the hell out of me. Great work mate thank you.

I’m glad you enjoyed the video and found it helpful.

Perfectly useful video, straight to the point, sped up to right speed, shows everything needs doing, nobody going on for 10 mins talking pointless bollocks. This is the kind of video mechanics should always post. Well lit too.

No

@@ScuffedMechanic Then where?? Sure looks like the UK though from the background

I live in Sweden and this was filmed in Skåne

@@ScuffedMechanic So did u get the bike from the dealership or was it imported reason why I'm asking is that I live in Pakistan and this bike is pretty common with such exhaust

@@hzxeren8216 Its a pretty common model in Europe and the exhaust was delivered from England. It’s one of the cheaper A1 license bikes.

Do you mean the stanchions?

Stockholm in Sweden

Thats great LOL