Warren-s

Hi mate did you get any results using a R4A plug. I just purchased a 300 JBR and was thinking about using a No4 plug.

Hi. I have just purchased a 2022 JBR 300 at the weekend it was a bit of a rough runner but got it nice and smooth now. However the exhaust seems extremely loud in comparison to the Beta I have, is it normal or am I missing something, I took the exhaust tip off and there is plenty packing in there. any advice appreciated. cheers.