Motorized Bicycle MS460 Timing Video Cutaway View! (Ring Sound Explained Many Hear!)

So Here is a MS460 build! I just wanted to show you the correct way to set one up! This build is all based on stock porting. Most don't realize this Jug Design is based on a 36MM Stroke! Even a 38mm is a bit extreme! 40 is just 4mm past factory.... If you set one up correctly like this! You will Honestly have no need to change any of it. If you need to go faster than 65mph on a bicycle your in the wrong hobby! Cause these stock can do that with ease!
TIMING CUTAWAY VIDEOS PLAYLIST: • Timing Cutaway Videos
Lot of people wanted to see the timing with the different sized cranks. You hear so many say how wonderful thee MS460 build is with YD100 crank in it and those same people make a video 3 weeks later how the bearing in crank turned into shrapnel every time!
So anyhow I hope this explains it a bit clearer now that you can see the piston where it is and where the timing is at inside. See how it lacks walls and gets beat to hell if you use the wrong cranks!
One other thing to note: When you lower the Jug to change the squish values like most say they do! Your piston will hang even lower below deck and smack even harder! They change the intake or they cut the skirt on the piston to try make up for the change. This just makes for a even shorter lived build!
#Bike
#bikelife
#diy

[@Eduardo_Espinoza]

Learned a ton, thanks for sharing the knowledge / awareness :)

[@BuildBreakFix]

Thanks 👍

[@MikeNBikes]

Can you PLEASE do a ideo on how to use a degree wheel for port mapping. There are videow on how to use a degree wheel, how to find true TDC. None of the vidros show what to do after finding TDC. I have found most of the port timing videos related to MBs are incorrect.
Please make us a video. I personally beg you. Im not trying to butter you up but youre the only person on here who knows what they're doing

[@BuildBreakFix]

there is a saw guy does a killer job at what your asking! Every 2 stroke is the same! ports and so forth timing wise! He does an awesome job explaining it great detail! Honestly his videos are best you can find and explains everything about timing on 2 stroke you could ever want to know! I don't think i could even make better video then the few he did in parts! czcams.com/play/PLmcp8y2Wl3fiBBFYGU93FYF6IAAiMp-WR.html

[@rodriguezfranco3839]

Since you are able to slip cranks , did you ever thought on putting stuffers inside it to reduce the extra volume of the crankcase ? Like bolted teflón stuffers I saw on a lot of motocross builds , or even aluminium would work

[@BuildBreakFix]

I don't understand why people think that is a good idea...... has no effect on 2 stroke other then decreasing volume the carb draws in not compression gain or w/e people it does. bigger the case volume more air fuel mix volume it sah room to pull in then push into piston to fire. whole idea just makes no sense from pratical basic understanding of how 2 strokes work. unless your mounting a top end needs smaller crank area then makes sense like 50cc on 100cc bottom end cause volume is so large 50cc piston can fully fill it enough clear it on down stroke enough to create vacuum seems to be confused with people thinking this improves power for some reason but they have the whole basics of it backwards!

[@mobdta425]

So the 38mm crank fits the yd100bottom end

[@BuildBreakFix]

yes! you need to use the crank shims though 1 on each side! few places sell them. some on ebay and all of the above pre made! rdmanu.com/ makes the best ones like $15. they have nice brass ones well worth 15$ I on other hand have cnc mill so make my own out of brass sheets. copper brass a or the stainless ones all work! tend to not use stainless ones cause if they where to ever get damaged hard metal would chew everything up! to be honest I don't think you really even need them! seen many made without them. it literally is .5mm each side total of 1mm in width. You will need a spacer on magnet side few washers! ans use the thin crank seal! not thicker yd100 one. type like a 80cc bottom end uses! "washer" 1 normally will raise magnet up 1.5mm ish to clear the case since 80cc cranks had a magnet seat 1mm lower then yd100

[@matthewedwards7577]

Hi I have fallowed all you videos and built me a ms 460 I tried starting to say after a long period building not as easy as it looks vary prod of my work though and thankful of all you videos 🎉 having problems starting it was spark on my 12v Magnito not working so I put 6v on got spark but still no start did get a backfire sound a couple of times could this be that the timing is at standard china doll I have 6 degree keys to retard the timing any advice be helpful ty

[@BuildBreakFix]

Did you put the Magneto magnet on in the right direction? When you have shaft ket side facing up is it pointing to 1 o'clock position? IF the plug is WET Change CDI if magnet is correct? Faulty CDI can cause backfire. If it is not wet looking! If it has strong spark put few drops gas down spark plug hole see if it fires for few seconds? If yes it's carb related! to small or to large of a carb can cause lots issues really fast! Also be aware! IF your using a carb with a pull type choke lever one that does not have a choke door that is mechanical! Like VM22 or PWK you put the choke on and give it "no gas" doing so will not allow it to start as well! Bigger carbs are not the type that like throttle at all applied to them with choke on "till they start up!"