How to Derestrict a Yamaha DT 50?

Answer

Yamaha DT 50 has been restricted by with a washer placed around the pulley rod of the variator to leave a gap between pulley rod and the drive belt. Removing this allows more energy to transfer from the engine to the drive belt and the bike go faster.
Q&A Related to "How to Derestrict a Yamaha DT 50"
Hello, I have a dt50 mx (H reg) from standard i have a "dep" exhaust, k&N air filter and a bore and piston of 45mm (standard being 40mm) and I get 55+
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My friends son has on 07 and i tested it after we de-restricted it and i got 62mph on a flat road ! (we didn't change the exhaust so you might get an extra 4/5mph) Not bad for a 50cc
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Tis a washer behind your Variator remove that change the exhaust to an aftermarket one ( stage 6 or Yasumi ) are the best to get and update your carb intake manifold Source(s): Custom
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80mph with race pipe and deristricted and god knows how many re-bores my mate had one. not as fast as a kawasaki kmx 125 with race pipe derisricted that will go off the clock. I've
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