Which exhaust are you planning on using with your ported cylinder? Also where in the RPMs are you going to make peak power? Your stock pipe will not rev high enough to have any big gains in power, I only think a scalvini pipe will be enough (depending on how much the exhaust port was raised). Also wouldn't the Adige PWR-2 reed valves be much better for this bike? I am looking forward to future episodes.
Hey, thank you!!😁👍 also we'll be using a giannelli for race exhaust, but we also have a sport production underpassing jollymoto exhaust to test. Scalvini exhaust are relly good for mid and high ranges (rpm ranges). My goal is to have as much torque and power in the bottom end since this will be a street bike and im planning to have a lil fun with it. The adige reed valves are really good on the mid and top ranges; however, they lack a bit in torque/bottom end power. I think that the boysen reeds will give me more power in the bottom end and even out on the higher rpm, ranges. I'm glad you're enjoing the vids man!
sotto la moto e più pronta. lavorando il cilindro, specialmente lo scarico si perde tanto in coppia. quindi l'anticipo si fa per recuperare nei giri bassi. Anche se il cilindro non viene modificato, facendo solo l'anticipo la differenza nei regimi bassi si sente. scatta molto di più 👍
Si, la differenza si nota. Però se riesci anche a mettere lo squish a circa 0,90mm cambiando la guarnizione cilindro (anche se il cilindro e originale) si sente veramente tanto l’aumento in coppia quindi conviene
ciao! la N e il marchio del produttore pero sta la anche per mostrare il verso giusto per montare le fasce, dato che tante fasce hanno dei profili diversi. si monta sempre con la N in alto per quel motivo!!👍👍
it depends, what bike do you have? the rs 125cc and the sx 125cc (aprilias from 2007 and upwards) have this hole on the ecu to drill out with a 4mm bit. On other models( also the aprilia rs 50 sx 50) its not possibe to drill out that part, you have to unlock it with the computer, but also that depends on what ecu you have. some ecu's cant be unlocked 👍
@@TAPASBLITZ there is the mark on the ecu where you have to drill the hole, try to make it as straight as possible and drill it with a 4mm drill point. it's impossible to get it wrong. in the video on the minute 17:08 i show you where you have to drill the hole exacly. dont worry nothing will break, just make sure to drill it straight 👌
there is the mark on the ecu where you have to drill the hole, try to make it as straight as possible and drill it with a 4mm drill point. in the video on the minute 17:08 i show you where you have to drill the hole exacly. dont worry nothing will break, just make sure to drill it straight . that way you unlock the ecu
Piston ring clearances are checked by inserting the rings one at a time in the cylinder and measuring the gap in the ring hence the name ring gaps it’s the gap in the expansion tips in the rings not the gap between the piston and the cylinder so In simple terms put the ring in the barrel use the top of the piston to straighten the ring then measure the gap in the split end of the ring and wala you’ve done it
Yes, I just had spray painted it red😂 it didn’t have any air leaks, when I was 17 I thought the red looked cool If there are air leaks you could use some silicone on the outside for a temporary fix!
Thank you for fast reply, was searching online for new one but they are most likely discounted… Mine has those small cracks like yours but need to vacuum test it to make sure it doesn’t leak
Hey!! no, we made it. It was made for a moto3 engine but we adapted it for the aprilia engine for the video!! i'll let you know the measurments tomorrow since i dont have the stand with me right now!
Ok so, the back support height is 28cm the front support height is 15 cm, the length is 35cm and the width is 20cm Obviously you’ll have to make additional supports & spacers to make it fit the Rotax engine properly since this stand was made for a moto3 engine
Hello! I own a Aprilia MX125 rotax 122, and i wanted to ask you if i could put a electric start motor in the engine, without cutting anything or something like that?
yes you can put a starter motor wihout cutting off anything, (rs 125 bikes have the same engines with the starter motor). However you'll need to get the starter motor, the flywheel and the relay for it, otherwise the starter motor alone wont work!!
Hello , i have a question about the ecu, i also have a sx and mine is turning up to 12000-12500 rpm and i havent thrilled a hole in the ecu, hows that possible? And what exactly you mean at the stock carburator is reducing the power? Great video!
the rpm's will show on the dash but the power wont be there once unlocked you'll get the full power. i'm from italy and the ecu's here are locked due to the law so the stock bikes arent that fast, yours maybe isnt locked; however, if you end up modifying the ecu you will feel a difference the stock carburator is good too, i meant the carbuaration. you have to tune it properly, by changing the needle, jets, the carb nozzle (jet body)
@@SheharaDevundara thanks for the answer i will look after it, can it be that its just for the 5 and 6 gear because there my sx has problems, in 5 gear it just goes up to 11000 and in 6 gear it just goes to 10000, can it that be?
@@shaze5498 i dont think that has anything to do with the ecu. its probably cause the engine is stock/ has many miles and has low compression. You can try changing the sprocket ratio, try a smaller front sproket!
0,65 per l’uso stradale e un po’ rischioso se hai tutto originale con molti km. Se è tutto nuovo (cuscinetti, bielle ecc) regge senza problemi (poi tocca usare sempre la 100 ottani sennò rischi che detona) . Noi la stavamo preparando quasi come da pista, in pista giriamo anche più compressi. Per una moto stradale originale 0,90 fino a 0,70 si può arrivare!!👍👍
@@sasiracing_2162 ammazza 1.70 e troppo alto!! si ti conviene spianare la testa e lavorarla un po' (ri-sistemare la camera di combustione dopo averla spianata) se lo squish e cosi alto 👍
awesome video
thank you man!!
Grandi.!!! Dajeee così. ..🏍️💪👍👏👏...mo tocca sentire e vedere in azione sto motore se frulla a dovere..😁 😁👍💪
speriamo bene🤣🤣
We njj j/k in
Awesome video rotax engines are so underrated
Thank you man!!
Which exhaust are you planning on using with your ported cylinder? Also where in the RPMs are you going to make peak power? Your stock pipe will not rev high enough to have any big gains in power, I only think a scalvini pipe will be enough (depending on how much the exhaust port was raised). Also wouldn't the Adige PWR-2 reed valves be much better for this bike? I am looking forward to future episodes.
Hey, thank you!!😁👍 also we'll be using a giannelli for race exhaust, but we also have a sport production underpassing jollymoto exhaust to test. Scalvini exhaust are relly good for mid and high ranges (rpm ranges). My goal is to have as much torque and power in the bottom end since this will be a street bike and im planning to have a lil fun with it. The adige reed valves are really good on the mid and top ranges; however, they lack a bit in torque/bottom end power. I think that the boysen reeds will give me more power in the bottom end and even out on the higher rpm, ranges. I'm glad you're enjoing the vids man!
You do not check the piston ring clearance with the cylinder ?
Ciao, volevo chiederti che olio cambio/frizione usi, la casa per l'mx 125 consiglia il 75w90
ciao, scusa per la risposta in ritardo. noi usiamo il Bardahl gearbox oil 10w-40, funziona benissimo sia che in strada che in pista, non da problemi👍👍
bello bello. ma le modifiche che hai fatto all anticipo come cambiano il comportamento della moto?
sotto la moto e più pronta. lavorando il cilindro, specialmente lo scarico si perde tanto in coppia. quindi l'anticipo si fa per recuperare nei giri bassi. Anche se il cilindro non viene modificato, facendo solo l'anticipo la differenza nei regimi bassi si sente. scatta molto di più 👍
@@SheharaDevundara capito capito grazie. Lasciando il cilindro originale ma lavorando sul contorno ha comunque senso fare quel lavoro sull anticipo?
Si, la differenza si nota. Però se riesci anche a mettere lo squish a circa 0,90mm cambiando la guarnizione cilindro (anche se il cilindro e originale) si sente veramente tanto l’aumento in coppia quindi conviene
Occhio quando limi il carter, stai attento a non bucarlo per sbaglio 👍
@@SheharaDevundara no senza altro haha. Grazie mille vediamo come migliorerà 💪
Ciao, a quanto avete fatto il rapporto di compressione? Grazie
ciao, scusa la risposta in ritardo. non mi ricordo di preciso, credo che sta sopra i 13,5:1
Mai guardato la lettera "n" sulle fasce,sempre montate senza farci caso,in cosa differisce aver l "n" in alto o in basso ?
ciao! la N e il marchio del produttore pero sta la anche per mostrare il verso giusto per montare le fasce, dato che tante fasce hanno dei profili diversi. si monta sempre con la N in alto per quel motivo!!👍👍
Il segno rosa sull volano, quale riferimento avete preso per decidere dove farlo?
niyamai jayen jaya wewa 💪👍👏😘
Grazie mille Dilhan!! 😁👍
Is there a part 4 ?
hey man i've been busy with school and racing BUT some time soon i'll start uploading again. tuning the bike even further !!
Is there a specific place I have to drill to unlock the stock ECU? It’s on the top right but how far ? Many thanks
it depends, what bike do you have? the rs 125cc and the sx 125cc (aprilias from 2007 and upwards) have this hole on the ecu to drill out with a 4mm bit. On other models( also the aprilia rs 50 sx 50) its not possibe to drill out that part, you have to unlock it with the computer, but also that depends on what ecu you have. some ecu's cant be unlocked 👍
@@SheharaDevundara yes I got a aprilia Rx 125 2007 and upwards , so if I do it wrong, slightly would it damage it?
@@TAPASBLITZ there is the mark on the ecu where you have to drill the hole, try to make it as straight as possible and drill it with a 4mm drill point. it's impossible to get it wrong. in the video on the minute 17:08 i show you where you have to drill the hole exacly. dont worry nothing will break, just make sure to drill it straight 👌
@@SheharaDevundara perfect thank u
@@TAPASBLITZ easy you have a dent at the back drill it with 7 mm drill bit look on line
hi thanks for the video can you explain me more about the timing ?
Dove acquisti i pezzi per il rotax 122? Bel video comunque!
ciao!! guarnizioni da motocrossmarketing.com poi per il resto chiedo a papà e ti faccio sapere!! 👍👍
I did not understand what to do with the écu. Do I have to make a hole, or should I plug the écu hole you showed …thank you
there is the mark on the ecu where you have to drill the hole, try to make it as straight as possible and drill it with a 4mm drill point. in the video on the minute 17:08 i show you where you have to drill the hole exacly. dont worry nothing will break, just make sure to drill it straight . that way you unlock the ecu
Do you know how many degrees advanced it is before you grind the case plz.
i'll ask my dad and i'll tell you!! he usually writes everything down👍
Thank you sir
Piston ring clearances are checked by inserting the rings one at a time in the cylinder and measuring the gap in the ring hence the name ring gaps it’s the gap in the expansion tips in the rings not the gap between the piston and the cylinder so In simple terms put the ring in the barrel use the top of the piston to straighten the ring then measure the gap in the split end of the ring and wala you’ve done it
Have a question about your carburetor flange, why is it red?Is that plasti dip on it to prevent air leaks?
Yes, I just had spray painted it red😂 it didn’t have any air leaks, when I was 17 I thought the red looked cool
If there are air leaks you could use some silicone on the outside for a temporary fix!
Thank you for fast reply, was searching online for new one but they are most likely discounted…
Mine has those small cracks like yours but need to vacuum test it to make sure it doesn’t leak
For a temporary fix you can put a little silicone on the outside so that it doesn’t suck air from the cracks
Hi, i have a question did you bought the engine stand or made it by yourself? I would like to know the measurments for it thanks!
Hey!! no, we made it. It was made for a moto3 engine but we adapted it for the aprilia engine for the video!! i'll let you know the measurments tomorrow since i dont have the stand with me right now!
Oh okay, thanks i would love to make one for myself😅
@@b17garage hey man, i didn't forget lmao dont worry! i'll be telling you the measures tomorrow
Ok so, the back support height is 28cm the front support height is 15 cm, the length is 35cm and the width is 20cm
Obviously you’ll have to make additional supports & spacers to make it fit the Rotax engine properly since this stand was made for a moto3 engine
@@SheharaDevundara thanks!! ✌️
Mi sorge un dubbio, ma essendo un accensione ad anticipo varibile, anticipando in quel modo non si va a spostare tutta la curva?
ciao, si cambia la curva pero non crea nessun problema
Grandissimi👍
Bravo 🏍️💪👍👏👏
grazie mille!!😊👍
Hello! I own a Aprilia MX125 rotax 122, and i wanted to ask you if i could put a electric start motor in the engine, without cutting anything or something like that?
yes you can put a starter motor wihout cutting off anything, (rs 125 bikes have the same engines with the starter motor). However you'll need to get the starter motor, the flywheel and the relay for it, otherwise the starter motor alone wont work!!
Hello , i have a question about the ecu, i also have a sx and mine is turning up to 12000-12500 rpm and i havent thrilled a hole in the ecu, hows that possible? And what exactly you mean at the stock carburator is reducing the power?
Great video!
the rpm's will show on the dash but the power wont be there once unlocked you'll get the full power. i'm from italy and the ecu's here are locked due to the law so the stock bikes arent that fast, yours maybe isnt locked; however, if you end up modifying the ecu you will feel a difference
the stock carburator is good too, i meant the carbuaration. you have to tune it properly, by changing the needle, jets, the carb nozzle (jet body)
@@SheharaDevundara thanks for the answer i will look after it, can it be that its just for the 5 and 6 gear because there my sx has problems, in 5 gear it just goes up to 11000 and in 6 gear it just goes to 10000, can it that be?
@@shaze5498 i dont think that has anything to do with the ecu. its probably cause the engine is stock/ has many miles and has low compression. You can try changing the sprocket ratio, try a smaller front sproket!
@@SheharaDevundara engine is completely new, an arrow bend and rave 2 is installed and the carburator set up fits on the engine, sprocket is an idea
Any hp figures for your engine 👍
we never ran this engine on a dyno however it was built around our rs 123 engine specs, i'll ask my dad and i'll let you know!!
Not really the best way to measure bore clearance, and I hope you measured the ring gap, that really is critical on a two stroke.
Squish da 0.65 non è basso?anzi bassissimo
0,65 per l’uso stradale e un po’ rischioso se hai tutto originale con molti km. Se è tutto nuovo (cuscinetti, bielle ecc) regge senza problemi (poi tocca usare sempre la 100 ottani sennò rischi che detona) . Noi la stavamo preparando quasi come da pista, in pista giriamo anche più compressi. Per una moto stradale originale 0,90 fino a 0,70 si può arrivare!!👍👍
@@SheharaDevundara per farti capire io ho 1.70 di squish e il cilindro sta senza guarnizione,quindi per poterlo abbassare dovrei abbassare la testa
@@sasiracing_2162 ammazza 1.70 e troppo alto!! si ti conviene spianare la testa e lavorarla un po' (ri-sistemare la camera di combustione dopo averla spianata) se lo squish e cosi alto 👍
@@SheharaDevundara eh lo so è alto però cioè sto camminando da 3/4k quindi per adesso tutto ok, però abbassando potrei avere dei miglioramenti
@@sasiracing_2162 si si, abbassando la testa diventa molto più pronta sotto, poi guadagni anche sul dritto!
You do not check the piston ring clearance with the cylinder ?