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315 piston sizing...


sharkbait
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I was skeptical as well at first but thought I would try a set. I had the boyesens in and back out for comparison and had to put them back in again, cleaner quicker throttle response, smoother reving all the way through. Engine response was much smoother with them in than the standard single petal reeds, best $40 I ever spent. You can find the number on the boyesen website at this direct link: http://boyesen.com/vaf/product/list/?category=%3F&make=21&model=205&option=205&year=626 , you can also probably get someone local to match a set and provide.

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Little update. New piston arrived from Feetup this morning (great service). Fitted it this afternoon (as our electricity was off for maintenance) and the result is that it's much better. There is still a bit of a rattle so I now need to decide if I can live with this or send the barrel for replating which will cost

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