Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions
To adjust the idle speed on an LML Star 125 with a 4T engine, first remove the plastic part located between the seat and the rear wheel that covers the carburettor. Once the carburettor is visible, locate two screws: one with a spring and one further in without a spring. The first screw will allow you to adjust the idle speed; you will need to act on this with a screwdriver. With the engine warm, slightly unscrew the screw to lower the idle speed and screw it in to raise it. After the adjustment, it is advisable to give the throttle a few blips to allow the idle to stabilise.

Updated on 6 May 2026 by ScegliAuto

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