Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Adjust or Replace the Tapered Needle on the Carburettor

Model: (Various brands) Various
Part: Carburetor

Video tutorial

This video explains how to adjust or replace the tapered needle on a scooter carburettor: first, remove the two screws of the slide, pull and compress the spring towards the slide cap. Remove the small white washer inside, so you can extract the tapered needle.

Take a wide flat screwdriver and rest it on the needle, on the side where the circlip is. With one finger, push the needle towards the screwdriver, while holding the circlip with the other, to make it come out. Now position it in the relevant notch and push until you hear a "click". To be more certain, push it with the screwdriver.

Now the needle is in the correct position and you can reassemble it, following the instructions in reverse.


Posted on 31 March 2026 by ScegliAuto


Related tutorials

How to adjust the carburation on a motorcycle?
How to adjust the carburation on a motorcycle?
(Various brands) Various In today's video, we will see how to adjust the carburation of a motorcycle. There are two main methods of action: - you can turn the screw on the si…
How to Adjust the Front Headlights of the Vehicle
How to Adjust the Front Headlights of the Vehicle
(Various brands) Various Adjusting the front headlights of the vehicle is a simple task that can be done independently. To adjust the headlights, position the vehicle in the …
How to Adjust the Idle on a Four-Stroke Motorcycle Engine
How to Adjust the Idle on a Four-Stroke Motorcycle Engine
(Various brands) Various The adjustment process is based on a screw located on the carburettor or throttle body. The primary aim is to find the exact RPM of the engine at idl…

How to Replace the Starter Motor on a Derbi Senda 125?

To replace the starter motor on a Derbi Senda 125, you need to unscrew the bolts securing the cover located on the right side of the bike, under which the clutch is also found. Once the cover is removed, you will locate the starter motor at the top left relative to the clutch. By unscrewing the nuts that secure it in place, you can free it from its housing to insert a new replacement part. After the replacement, reattach the cover, ensuring everything functions correctly.

Watch the video!


by ScegliAuto

More videos