I recently purchased a Jap language Factory Service Manual for the Honda GB400 and it shows pilot jet at 45 and main at 168-My GB500 FSM states pilot at 48,which is fine,but the main at 152.-Is it correct that a bike with 100cc less would have a main jet 16 sizes higher?It doesn't quite seem right to me.Any carb gurus out there can answer this?-Cheers.
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