How to make a 2 stroke more powerful Consider reed valve for more horsepower. Reduce the Squish gap. Down jet the engine. Inspect your exhaust system. Work on your intake. Get the cylinder ported. Check the Ignition timing. Make your exhaust system stinger ID smaller.
Given our example above for the 70cc engine, let’s imagine we would ride the setup with the original air box (maybe slightly tuned). I would then add 0.05 to the 0.9 due to the Stage6 exhaust: Carburetor Diameter in MM (17.5mm) x 5 x 0.95 = 83.125 -> 84. Again, the size 84 main jet will probably give me very good results for this setup and
The Suzuki DR-Z 125 4-stroke bike has a top speed of 50mph I don't think you can derestrict it because its 4 stroke the only way to really get it any faster is to get a 182 kit for it but then /r/moped, or mopeddit, is for discussion and celebration of vintage mopeds on Reddit. We ride mostly 1970s pedal-equipped two-stroke models, such as those manufactured by Puch, Motobécane, Peugeot, Tomos, Garelli, Sachs, Kriedler, etc. Post pictures, ask questions, find your local gang, and share knowledge. How to derestrict the carb on some 50cc 4 stroke mopeds/scooters. Mainly Chinese GY6 engines, but some others use the same principle (Piaggio Fly, Vespa) Sam Joined: 20 Apr 2009. Karma : Posted: 23:49 - 20 Apr 2009 Post subject: YZF-R125 derestriction. hi. can you derestrict a Yamaha YZF-R125 which improves the speed quite a lot, i have read a few things and its says that because of electrics and the fact its 4 stroke that you cant derestrict it. Back to top.
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From the dealer, the derestriction (speed) kit that Kymco sends with the scooter is a derestricted boss and an 82 main jet (the scooter ships with a restricted boss and 78 jet on it). My dealer upjetted and changed out the boss at no extra cost. The exhaust that is on the Like is indeed restricted, but not by a washer.
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  • how to derestrict a 125 4 stroke