Oil cooling for a 4T scooter
Why fit an extra oil cooler to a 4T scooter, and which engine parts it helps protect from overheating.
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Xenon headlights on a moped or scooter: are they worth it?
Pros and cons of xenon on a moped or scooter: light quality, focusing in the headlight, lenses and wiring modifications.
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Two-stroke scooter carburetor: disassembly and repair
Step-by-step disassembly of a 2T chain-drive scooter carburetor, setting the float chamber fuel level and the mixture, and reassembly.
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Is it time to replace your piston kit?
Signs of a worn cylinder and piston group in two-stroke and four-stroke scooters, and how to confirm the wear once the engine is taken apart.
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Chain keeps coming off on a Delta: what to do?
Why the chain comes off on Alpha and Delta mopeds and the chain tensioner thread gets stripped — and how to fix the problem once and for all.
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Bigger displacement: a 110cc engine on a Delta
How to fit a 110cc engine to a Delta or Alpha moped: a list of parts and tools, step-by-step engine disassembly and reassembly, choosing sprockets and a jet.
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Alpha moped tuning
DIY cosmetic tuning for Alpha and Delta mopeds: a zero-resistance air filter, mirrors, grip fringe, LEDs — and what you'd better not do.
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Performance CDI unit for the Alpha moped
How to improve the acceleration of an Alpha or Delta moped without taking the engine apart: why you need a CDI with ignition advance control and which tuning CDI you can fit.
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Scooter valves: why and how to adjust them
Why too large or too small a valve clearance is dangerous on a 4T scooter, and how to adjust the valves on a Delta or an Alpha yourself.
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Storing a moped for the winter: what you need to know
How to properly prepare your scooter or moped for winter so that it starts first time in spring: step-by-step winter storage tips.
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Registering a scooter: where to start?
Which documents you need to register a scooter up to 50cc and add category A1 to your license — information as of April 2011.
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Voltage regulators on scooters
Why the battery on Alpha and Delta mopeds goes flat and boils dry so quickly, and how to fix the problem by installing a different voltage regulator.
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