Honda Bf4 restrictor

Old 06-14-2019, 04:57 PM
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Default Honda Bf4 restrictor

The honda bf4,5,and 6 all have the exact same specs. How do they restrict them? I have the bf4 and want a little more power. There is a plate behind the carb but the opening is the same size as the carb so it doesn't look like thats whats restricting it.
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