Yeah no effort! Surprised the heck out of me when it hooked that quick! That decompression plug is amazing! When I tried to start it not on 3rd ride today. About took my teeth out on handlebars. Massive compression lol

@@BuildBreakFix I have done some really extensive work and I’m still on version one like the same cylinder a year later over a year later whatever so I wanted to run a couple things by you and see what you thought I’ve been watching your videos and I love your build and that’s what I’m doing next absolutely

To be honest it's a hit or miss process. No right or wrong way. Depends where you live, temps, elevation lots factors. Really amounts to an educated guess. Does it sound right when it runs. So you first have to know what a good running engine sounds like. Then you base how yours runs as you tune it. One of those things takes few screw ups and live and learn screw ups lol. I can assure you I have blown it a few times 😂👍

21-20mm carb is what you want! power jet is ideal. This card 21mm version makes them a f'n moster! 28 mm to large! 2/5 of 52mm is (20.8) so 21 + or - 1mm 20mm to 22mm carbs are correct size! called (venturi effect) without correct position suction volumes the carb can not run huge carb like that correctly! this one linked is a monster on saw builds! i have a video of one and its killer! you shut the power jet off to start with, adjust everything 0/75% throttle ranges! slowly turn up poer jet at 75% to 100% higher speeds 1/4 turn each time till you hear a bog. then turn it back 1/4 turn you have a screamer 100% down the line! www.amazon.com/Carburetor-Universal-Motocross-Motorcycle-Scooter/dp/B083RMKS5K/ref=asc_df_B083RMKS5K/?tag=&linkCode=df0&hvadid=416776450923&hvpos=&hvnetw=g&hvrand=3416183859038250102&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1025604&hvtargid=pla-896544009969&ref=&adgrpid=93124985439&th=1

Well no idea where carb should be yet till breaks in fully. But to be safe/ ring setting process! Yeah ran it on rich side to play it safe! Second! Never mind a wheelie lol I bet this sucker could do rolling burnouts!

@@BuildBreakFix soo... mineralli cast iron or 460?

@@dreadknot2238 hands down this saw jug rocks a minarelli. No cold seize crap to worry about either. 89.5cc this saw jug. Minarelli is 70cc. Minarelli struggled with 32t at stop and goes. Saw jug can just about spin the tire while rolling lol

@@BuildBreakFix we got saw doing 86mph on 22t at 10000 rpm 26t tyres and pull like no one buisness on a Sunday walk in the Park

@@dreadknot2238 After riding that thing around a bit now that it's breaking in some! Yeah I could see that for sure being in it's near future lolz!

Not really. Ms380 is what phantom is copied after. C ok completely different porting and larger piston. Plus phantom is pur garbage lol all 4 generations explode cause of horrible port cutting and castings!

What has wider piston skirts the 380 are the 460

What has wider piston skirts the 380 or the 460

@@joebrown967 They both are the same skirt wise bottom to center of pin! Ms 380 is 1.4mm lower from pin center to top then the ms460. Phantom 85 uses a Ms380 piston since it's a copy of one!

3rd short ride! Idles perfectly now without touching a thing!

Yd100 is easier correct. But... this is a China doll lower half 😜

@@BuildBreakFix could I do the same build with my zeda 66/80cc lower ends? Cuz when you say china doll lower I picture the typical 80cc zeda lower like I run.

Don't know honestly don't see much of a difference between it and a minarelli. Both seem pretty matched. Minarelli has so many cold seizure issues cast iron jugs though.

Ha, you know what happened! On other bike handle bars way in different position! since I been riding that one mostly I just forgot lol! Later said the same thing! lol but was already all in on first start video lol!

what? First break in ride never started before! Rings and everything where new!

Parts wise. They have different hole spacing and yd100 longer in stroke height. Both (40mm stroke just longer rod) not impossible but for sure not turn key! But the bt100 and yd100 are both great kits!

@@BuildBreakFix the rabbit hole is what scares me. I can pick up and MS440 kit at the local mower shop for under $70 (1100ZAR here) Its got the 50mm bore but its a 36mm stoke, so I'd need to mill the head off and make one that fits. The wife thinks I've lost it.

@@Heliore no you dont! I did hit mine with a mill yes! But I only took .2mm total off it! Yes ( 0.2 mm)Mostly cause to damn lazy to sand it flat lolz. I bout my jug piston 30$ off ebay! Free ship usa seller! I will be making a second one! Many found this build interesting. With all add revenue from adds on this channel I put it right back into projects everyone makes possible by watching! Next one will be made on a yd100 with super basic tools everyone has at home! I normally map a build and get one made so runs well. Then make diy friendly version all can enjoy!

@@Heliore yd100 has 50mm spacing! 54mm hole! No cutting needed! And you can mod each stock jug hole 2.5mm and use stock bolt holes! 50x55 on jug!

After few runs on it now, breaking it in. It is amazing! Makes phantom and minarelli look like little girls kit after. Soon I'll have a full on ride video. See what it can do!

Most people Buy a Nasty Jack Pipe! Or a Mz65 pipe which actually same thing just over priced lol! And just cut slots in the bolt up holes or drill holes out. just use stock ms 460 exhaust gasket it will fit close but will work! Heat the header on pipe up with a torch and stick a bar inside it and bend it to make it fit your build! Or cut it and weld it if your able to. They bend pretty easy once heat them up! But simple easy way! Works f''n killer bor! Use a Stock Saw exhaust! They honestly work amazing! Dual port one is the mack daddy of High rpms on these things lol! No joke sounds dumb but cat box option is so overlooked! 15$ ebay or amazon! Everyone wants huge chamber pipe for w/e reason but honestly cat box option really makes these run pretty sweet! I honestly cant tell the difference from a cat box or mz65 or even jog pipe on these builds like zero power changes form either of the 3! some guy even did dyno test and came up with same conclusion!

Wow bro you just saved me so much time and money. For that I THANK YOU KIND SIR!!! Really thanks alot bud I'll give that a honest try 🚴🦾

I don't want the mess from the oil all over my bike with the cat box but I'm going to do that first so I can break it in before I try doing what you said with the mz pipe

@@josephdale5400 I litterally did that with the one on this bike you are looking at with Jog pipe lol! Minarelli is 42mm spacing and I took a cut off wheel and made a U each bolt hole bent it ever so slightly. Video I think even some place of it one first one I did! works perfectly fine though! Saw jugs all use 38mm spacing and the bolts are 5M so you will need a 5m washer since everything else is 6m bolts they actually go on wich also adds more room and makes it easier to line up! other then that good to go!

I thought you needed a expansion pipe to be fast and reliable it's looks better than the box but if you don't have to spend the extra money to get same numbers as big pipes why not?? I want to look good too . but as long as it runs it's ass off that's cool also.thanks to build break fix mostly for responding to me and pointing me in the right direction!!!

Yeah! 3rd small run started coming to life!