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Old 08-01-2012, 07:51 PM
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Ludwig II Ludwig II is offline
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Join Date: Jul 2012
Location: UK
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Default Legally restricted output.

Does anybody have any experience of restricting 50cc 2 strokes to suit their local laws? I'm going to have to get an engine with a genuine 2.5bhp down to 1.3 to get through the approval process, and although I think I know how to do it, I wonder if it will be enough.

Step 1 is to find the smallest carb in the shop and fit that. Step 2 is to introduce a positive stop to the twistgrip so it can't open the carb much anyway. Step 3 is restricting the exhaust outlet, with the option of reducing the "inlet" side of the silencer. Step 4. Use Super Unleaded for it's slow burning properties.

Anybody got any more ideas?
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