Yes, I remember. If they were not switched to Development mode the top speed was 55kph😭

Thanks for the support brother✌. The factory rollers are 7.5 from memory so you may consider to take them down the 6.8 gram. Trial and see at this weight, if the performance has increased. don't go too light.

@@scooterstreetau ty :)

Thanks, appreciate that. Theres a lot of variables, but generally we'd recommend starting around 70 jet, and working your way down the jet sizes until the bike starts to run more cleanly.

We really appreciate your comments, great stuff Gerado☺🦘 I knew all this and I still bought 4 😂😂😂🤣. Keep working, start with the cylinder and then move forward from there.

Yes the Carb version is the ONE>

@@scooterstreetau yes got a 2016 one and thanks to your video I knew what I was buying. My last scooter was as Aprilia SRMAX 300 which I bought from Adam in 2014, so hoping this smaller one will be lots of fun too. I have a full bike licence but something about small bore is just fun

@@NoahJJCoolClips Let's go next level on this one Stu J.

@@scooterstreetau yes, just emailed about installing a 70cc kit.

Glad you enjoyed it, a lot of hard learned info there! Sounds you have either an air leak or fuel blockage. If we had it in the shop, we'd drain the fuel tank, replace the fuel and vacuum lines and give the carb another clean just to eliminate any potential cause for issue there (make sure the jets are removed and blasted with carb cleaner and air). The next couple common causes are cracks in the intake manifold and airbox tube, and disintegration of the air filter foam (caused by fuel fumes not being vented from the airbox by normal running of the bike). I would check these before starting the bike again, if the air filter is crumbling apart it will immediately block the jets up again.

@@scooterstreetau Hi mate, thanks heaps for your feedback. I ordered a carby gasket kit, new intake manifold, new airbox connector and new Malossi air filter from you guys (thanks for the speedy delivery) and fitted them as yes it looked like early signs of cracking. I’ve now cleaned the carby a third time removing everything and flushed and high pressure cleaned all jets. I know it should be a blocked pilot jet but everything looks perfect. However I’m still having this issue once the auto choke warms up the bike won’t run. If I keep it idling and unplug the choke once it cools it starts running fine again. If I twist the throttle in a certain spot when warm I can get some brief response in rpm. Can’t work out what’s wrong…. Would you like me to purchase a call allowance? New carb maybe? But can’t work out why. I’ve ordered an ultra sonic cleaner so could try that first but everything looks and blows though jet wise great. Cheers mate

@@Glen911porsche You need to have the scooter checked. Impossible for us to fix or make the correct suggestions as to what and how... Sounds like a lean fuel issue..

I had a same issue with my sr and the problem at the end was that oil from the fuel pump did not reach the engine and sadly she blew up

The engine number.

This system was difficult to love, but there is a carby conversion kit available and this renews the life of this early system.

Thanks Oscar👍 We don't have the Teflon ring, we do have the air injection nozzle. Should be a common size from Auto seller in your area.

Ok, great example of a tuned SR50R. Interestingly we built that scoot years ago for the original owner. All of the high end transmission parts had been taken out and replaced with factory parts and it was running like a 3 legged dog. We have given it a birthday and upgraded all the transmission amongst other parts. The new owner is stoked.

@@scooterstreetau nice! I left the transmission as it was from the fella I got it from, but I did get the upgraded crankshaft from you and installed that along with replacing all the bearings etc. It was always a little weapon of a scooter! 👌👌 It must have been through a journey after you built it and before me, now it's done a full circle and going strong 👌 coolest scooter around I reckon 😜

@@ninsnum Yes well that would explain the power it has.. She flies now we have replaced the transmission👍 very cool and fast too.

Like any model, when they are working well they are really a Great machine! The common theme with these models is that the repairs/ and diagnosis can be tricky and expensive.

You need to check the variator for the restricting washer, outside that there is no general restrictor. You just need to fit some go fast parts to get better performance.

Over in certain markets the very early SR came with the Yamaha engine!

Because, like us you love your scooter🤙. Thanks for watching and commenting.

Hello and thank you. You will need the carby conversion module from Malossi.

Thank you👍I see them on FB market place and Gumtree on occasion.

Thanks very much for the reply, sorry one more question if you are able to help? I've found a 2010 model apparently it's struggling once it goes over 45kms. Do you know what that may mean? Is the 2010 model okay? Thanks for any info

Could be one of many things, fuel issue, restrictor, exhuats issue. Air issue. Spark plug old.@@47moo

In a street rider we usually don't for convenience reasons. In the race bikes we run premix.

Yes they sure do. All of the Euro4 models have a similar system and it can be disengaged. On my scooter I remove the black/white wire in the 2 wire port on the ECU. watch the ECU video. Slide to time 6:50 kzfaq.info/get/bejne/o9ZiqpNmubyXhps.html. Also a restriction on the Hub or shaft on the variator.

If you remove the clutch cover and then remove the variator. With a firm grip on the crankshaft, lift and push down to see if there is play. If there is vertical and lateral movement you can be pretty sure the bearings are on the way out. DO NOT delay in changing them if you suspect! You will reduce greater damage. Is the mix rich enough in oil?

@@scooterstreetau I believe that the fuel mix is right on. There is a tiny bit of play in the crank bearing. The rod knock starts at 3800 rpm and the more rpm's it turns the louder the knock becomes. This is why I am seeking a new crank kit. A stroker kit would be much nicer, but I'm not sure if there is one available for the morini ditech. From what I have found for replacement parts for my engine, the cost is between $850-$925 USD. For that price My 2007 Aprilia SR 50 should rip !

@@scottmiller4009 The plug will tell you if it is heavy on oil. Yes I am familiar with the knock of the Morini engine. Yes it will rip up the streets, once these are running well they are a great machine..

@@scooterstreetaucan u pre mix if u have a ditech? It won’t do any damage to the injection system or something else? Bc I rode online that u have to use the oil pump if u have injection.

@@nardini1978 You can but expect to be cleaning or replacing the injection nozzle often.

If its the fuel injected Piaggio engine, you have a leaking water pump shaft seal. Unfortunately the only way to properly fix it is to split the crank casing, remove the liquid cooling impeller and replace the seal from the inside. You can get water pump rebuild kits which include a new shaft, impeller, bearings and seal quite cheaply, the costly part is the removal of the engine, and splitting of the casing.

Yasuni R with Aluminium Silencer. Awesome street race performer.

@@scooterstreetau can I do a straight swap or do I need up upjet at all to compensate?

@@F0zzybe3ar You MUST change the jet. We also change the roller weights, and fit tighter clutch springs or change the clutch shoe.

@@scooterstreetau yeah I think as standard the rollers are 7.5grams, I already looked at putting in 6grams. I'd have to look into changing the springs on the clutch. Would it be worth changing the entire clutch/bell and belt too or is it not worth the hassle? It's only 4 years old and has done about 4000miles

@@F0zzybe3ar Yes 7.5 .gram is standard. You should try 6.5 or similar so it is not over revving but not to loose performance.. the lighter rollers maybe helping you overcome an early engaging clutch, so tighter clutch springs will allow a build before take off and the heavier rollers should give better acceleration and a longer pull without dropping away from the speed increase..

The Tacho often fails in this model. Check the connections at the underside of the dash assembly, but the issue is usually internal.

Usually the system will start without having the battery, this is the case with an AC system. The DC system must have battery power to start and create spark.

It really depends on the budget, The MHR cylinders are amazing for performance but you need the whole kit to go with them. If it is a street kit try for The Malossi MHR Rep.. two ring piston and reliable, Can't go wrong there..

Check: Spark, Fuel, Air and air leaks. These are the basic checks. If the issue is not resolved, start with a compression test and then check the Injection system.

Hi Lucas, I've added a link to the bottom of the description for you🤘 www.scooterstreet.com.au/product/yasuni-r-exhaust-for-aprilia-piaggio-50cc-2t-models-except-ditech/

Hello, All the instructions are on the Malossi website, search for your model and see the parts. 👍

No.

Thank you for the support, 🙋‍♂️. The carb version can be leaner on the main jet due to the water cooling. 4.3 is lighter than we use..

@@scooterstreetau but it's 50cc not 70cc

@@matejmisev7930 Yes, I thought it was 50cc.

Excuses for my English

Just to start.Test compression. Test spark. Check all air and fuel hoses.

No, my understanding is the Purejet engine is not tuneable with the game boy. The Ditech's had very limited tuning options with the game boy, you could really only remove the factory restriction. We have the Aprilia Dealer diagnostic system at the shop, and even it has very limited ability. The best option for the Purejet is to convert to carb!

@@scooterstreetau ok cool and thanks for the answer.

We would go for the Yellow sport spring set. engaging at 3-4000rpm. The torque spring is dependant on the rollers weight.

@@scooterstreetau What roller weight goes best with the torque spring? Also will the stock crankshaft be fine with that much rpm?

@@nightbringer5169 The rollers for this set up should start at 4 gram, you need to get this kit revving, and then increase the weight as required. The torque spring - we like the blue Malossi spring, and the higher tension clutch springs set or just fit a performance clutch, Polini G3 or similar with adjustable spring tension. The MHR cylinder is very high revving and you will need the TC Unit at minimum although I would go for inner rotor ignition system. If you are running the MHR you should upgrade the crankshaft....

@@scooterstreetau Will try to do that. THANKS helps me alot bro !

@@nightbringer5169You are welcome, and just to be sure. It is an MHR or MHR Rep?

We used to do it with a Nintendo Gameboy but now no longer have this Technology.

Is there any other way to do it?

@@everythingbro4786 Your local Dealer may have the computer system?

There is none piaggio or gilera official dealers around me sadly

@@everythingbro4786 if it is doing more than 60kph then it has been done already, In standard mode it will do 53kph.

Hi, Thanks for your support. Follow the link in description or go to www.scooterstreet.com.au/ and hit Get In Touch button.

Does it have the carby or does it have the Injector? Watch from the 2:00 minute mark. Later Ditech shared the same air filter as the Carb models.

@@scooterstreetau it has a carby

@@theleoto2691 Cool. 👍

Haha yes they can be a nightmare, Wow the RC One will make yu very Happy😆

@@scooterstreetau lol very soon, this project has been in the works for the past 2 years saving money for it.. been a scooter racer/ mechanic too in the early days of those Honda dio’s and Yamaha jog, also the older piaggio zip sp 1996-2000 and sfera’s way back 1996-2004 when i retired and migrated to US, those rare italjet twin engine formula 125cc sound i mis so much. Sounds like a mini honda NSR 250r😂

@@camilo8cheryl All sounds too familiar.

Both 50cc, but the Ditech was very fast when is Development MODE, throw on an exhaust and it was clocking upto 85kph. The carby model needed some derestriction to get it travelling to higher top speeds. In Australia we have E2-3. and very limited E4. Basically the same but harder restriction on the E4.

So the difference is, that the carb e4 is limited more then the ditech ore ? I'm sorry if i ask stupid question but I'm not the greatest scooter genius.

@@Takealook187 The Australian version, Yes. The Carb Version we have is limited to 50KPH.

But there is nothing different about them, except for the limitations?

@@Takealook187 Completely different engine types. The video explain the differences.

A Ditech with a carby? Do you have a video or photos?

@@scooterstreetau no but you can find info if you google ditech with carb. the model is AP67714**00 Aprilia SR 50 2T H2O Ditech+Carb. 00-04 (APAC/EMEA/NAFTA)

This refers to the different models, either Ditech, or Carby model. You can have a Ditech with a Carby unless you have fitted the conversion unit.@@hammerfix7241

i found it weird that it was ditech and carb also. thats how it was sold to me.

😂 so which one do you have?@@hammerfix7241

We have seen these fail but not as common. Maybe 2 in our experience.

@@scooterstreetau interesting, I picked up an sr50 that has a problem where if I hold it wot I get a loss of power and a backfire, I have narrowed it down to the tps sensor on the throttle body but I’m still not 100% sure as diagnosing this bike is very hard

@@gagne6535 Yes very difficult as it send info back and forward to the ECU. Check the spark and the plug, it may not be firing correctly as the load increases. Electrical issue. We always start a Ditech diagnoses with checking the cylinder..

Basically yes, the SR 50 has many model variants. Identified by the last numbers, digits and description. SRMT, SR50R SR Sport, SR Ditech, SR Factory.....

Aerocks😉

@@scooterstreetau I have an Aerox and im selling it to buy an aprilia!I dont know what to do?Do i sell it or keep it!!😉

@@sky3118 Keep the Aerox and buy the Aprilia (carby model). Do the best job you can upgrading the engine and body.

@@scooterstreetau I have to chose betwen aerox and aprilia

@@sky3118 OK let us know what decision you make🤔

Bjour. Pour l'APRILIA ditech sr 50. Voir Scooter Center ou Scooter Attack

Yes, The Piaggio engine has 2 electrical issues that can be difficult to diagnose. 1/ The first being the CDI/Coil. The failure symptoms are: Engine cutting out when hot or no starting. Check the Spark at the plug and you may see a weak or an Orange coloured spark. 2/ The wiring connection from the Stator to the main wiring loom. This can cause a splutter or dropping in and out during a ride. The wires can be displaced at the connection and have an intermittent break. We have hard wired several to diagnose this issue and it appears frequently, not only SR50R but Zip as well.

@@scooterstreetau ok i was maybe thinking og buying an sr that doesent run so i was wondering if it could be the eletrics

@@reinarblahamar Maybe it is??

@@scooterstreetau yes maybe it could be

@@reinarblahamar possible..

Personal preference, I prefer working with a carby.

Wow that would be on the wish list for sure.. just have to start saving..💰

I just watched the Turbo video, what a noice machine..

On both models it is the air intake. It feeds fresh air into the airbox. All scooters have this.

Everything dies, so have fun and if it does, use the opportunity to learn about these systems👍

The earlier ones were the Morini engine. Piaggio continued the Ditech also the NRG has the injected Piaggio engine.

@@scooterstreetau Oh I see :)

@@unpossible3249 Clear as mud😂 all good.

@@scooterstreetau Whats the difference between morini and piaggio in performance and soundwise?

@@unpossible3249 It depends on the criteria, acceleration - mid range - top speed or overall. It is really up to the rider and most will argue the scooter they own is better than others. What we do know is the Morini always had greater acceleration with an engine gearing sound out through the exhaust. The gearing was very smooth and TGB which ran Morini engines made the better variators and transmission parts becoming a leader in the early manufacturing of these pieces. Brand such as Piaggio and Yamaha had TGB stamped on the variator from their respected factories. The Piaggio current days has more available parts and it more tuneable and easy to keep the machines on the road now days. The noise from the Piaggio was always exhaust based and the Early ZIP had a clean free revving tone but now with the many restrictions in the exhaust you will hear that dull muffled noise. The Piaggio ditech is fast all round and is very economical. The NRG, it really took over from the Morini Ditech and shows as a better engine but still shares the injection issues as the bikes age. So always keep up the maintenance and you will have a reliable overperformer scooter.

We agree, but even when the carby conversion is added they still run the Morini crankshaft😫

@@scooterstreetau and?fhere is no problem with ditech parts u only need to bypass it.im stil running with my converted piaggio engine.u need a few parts to buy but no need other crankshaft.

@@dokesz530 Are you running the Morini engine? In Australia it is difficult to get parts for the Morini Ditech engine..

@@scooterstreetau piaggio purejet

@@dokesz530 In the Video we have the Morini Ditech... Yes ok you have the Piaggio engine, we are talking the Morini Ditech. Very different engine manufacturer.