Scooter Maintenance Articles
I will be posting a slew of scooter maintenance articles over the next several days, and this post will serve as a directory for those posts, and something to link to.
The articles deal with maintenance and performance upgrades for the Aprilia SR50 DiTech and the Aprilia Mojito (Habana in Europe). They are both 50cc scooters, but the Mojito is air-cooled and has a carburetor, and the DiTech is liquid-cooled and has fuel injection. Both scooters are built on the Morini platform. However, even if you have a different scooter, it is likely that you will get some benefit from these articles. Many scooters are built on the Morini platform, and even scooters built on other platforms will have similar parts and arrangements. Modern scooter makes such as Vespa, Malaguti, Piaggio, Honda, Yamaha, Italjet, MBK and Benelli all have similar innards, and you can learn much from these articles.
These articles were all written by Scott (AKA Scootnfast on the ApriliaForum boards) as forum posts. I have (with Scott’s permission) taken the information and photos he posted, edited them for clarity and formatting, and posted them here, in order to preserve them and make them more accessible to non-forum goers.
Here are the articles currently posted. If the article isn’t linked yet, it means I haven’t finished putting it all together, check back for updates and additions:
- CVT Basics – Describes the basic operation of the CVT (Constant Variable Transmission) that is the automatic transmission for most modern scooters. It is a simple device, but it can be difficult to understand how the different parts, roller weights, variator pulleys, and contra springs all work together to provide you with twist-n-go ease. Any scooter driver should understand at least a bit about what is going on down there.
- De-restricting an Aprilia Scooter, or Most Any Modern Scooter – Most modern scooters come to you in a restricted state. They aren’t producing all the power they can be. This is usually done for legal reasons dealing with importing and registering of scooters, but the restrictions are easily undone, to give your scooter back its performance. The directions described are for an Aprilia Mojito and SR50 Ditech, but the techniques are applicable to nearly all modern scooters.
- Installing a Big Bore Kit on an Air-Cooled Mojito – This article describes the installation of a 70cc kit on an Aprilia Mojito, which is an air-cooled scooter based on the Morini engine. Techniques here will be applicable to nearly all air-cooled two-stroke engines.
- Installing a Big Bore Kit on a Liquid-Cooled SR50 DiTech – This article describes the installation of a 70cc kit on an Aprilia SR50 DiTech, a fuel injected, liquid-cooled version of the Morini engine. Techniques here can be used for other DiTech scooters (such as the Scarabeo DiTech), and other liquid-cooled engines.
- Installing New Final Drive Gears on an SR50 DiTech – This article describes the installation of new final drive gears on a DiTech. These instructions should help with the installation of gears on any Morini based scooter, and will give you an idea of what is involved in any final drive installation.
Tuesday 28 Oct 2003 | Sam | Scooter Stuff
How can i derez my sym dd50
does anyone now how to derrestrict a piaggio skipper st125? if they do can they please contact me many thanks sam.
hi what do i get to make my scooter go as fast as it can and if u know anything can u give me the links by email it’s jbradley14@hotmail.com
my scooter is a aprilla rs50 ditech
Hi, Can anyone help me, i have recently had a crash and the scooter is leaking a black liquid from the front part. Its a benelli 491 ST. I am also wondering how to de-restrict it. Many thanks
I have an MBK BOOSTER NEXT GENERATION 50cc 2 stroke scooter.
I would like sevice information please.
-What spark plug and gap must I use?
-How do i clean the air filter?
-Must I change the oil?
-If so how much oil do I put in or
is there a level to fill it to?
-What oil must I use?
-How do I drain the old oil?
-Is there anything else I need to do
in order to service it?
Thank you
Hilton.
my piaggio nrg mc3(02) will not start so i took it to a garage an they told me there was no spark but did’nt tell me what i should do about it so any solutions
if there is no spark its either the coil or cdi unit coils are bout £50 probs cheaper n cdi varys it round bout £100 may be bit more
i have a piaggio zip 50 and am having problems with the drive. Scenario: Riding along at whatever speed and slow down (quickly or slowly) to a stop at traffic lights (for example). When pulling away the engine doesn’t rev and i have very little or no drive. This lasts for 3-5 seconds and then the engine sound changes and the scooter drives away as normal. When it gets going all is fine until i stop again and try to pull away. Uphill is worse than flat. Does anyone have any ideas why this is happening?
orite i hava malaguti f-12 phantom foggy replica
how do i derestrict it??
is it cutting of wiring or removing a washer from the standard exhaust??
how can i make my aprilla sr 50 go faster i have brought a full derstrited exuastst racing pipe as well and still only doing 50 with a lot of dead spots can any one help!!!
my zip does that the key is not to full trhottle but half throtle then progres til u find the biggest power been used if u no wat i mean then just hold it there
how do i dresrict my sym dd 50 and where do i get parts from?
how do i derestrict a derbi senda extreme 08 plate
w/b
my sr 50 di-tech has a leo vinve zx pipe and nothin else and itdes 43 mph wat speed will it do with gameboy mod washer taken out rollers and performance clutch thanks! p.s brilliant site love the detailed diagrams and good advice love it!