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I shall be fitting the +3mm body to my bike here in Spain but have been involved in all sorts of domestic problems since I got here in mid October (electricity company putting obstacles in the way of fitting a new {working} meter to my supply, water company refusing to install a new water meter anywhere other than on the main road 1+half kilometers away with no security on it!, the Ayuntamiento prevaricating over reinstating their track down to the valley where I live etc.).
Even when it is fitted it may be a long time before I can do other than give riding impressions of its effect because my nearest dyno is (I think) in Granada. I have bought a rev counter to fit so that I may be able to adjust the mid range by hand but because most of my riding is on campo roads or dry river beds and goat tracks which do not have any level stretches I am constantly on and off the gas and am tuning my bike for maximum torque and not outright power.
As Kev has said we are doing these modifications on the basis of best guess and risking our own money for unknown results. Shall do my best to give an idea if the �2-300 is worth it. I believe it will be for my use of the bike on the basis of more air and more fuel into the bike with adequate outflow from it (with or without baffles?) in what is an understressed big single should be beneficial.
I should like to try the bigger bore but as I have no garage facilities (work in the open air) and no proper engineering equipment (hand tools with bench pedestals and several portable hand vices for the electric drills) it is only a bit of ingenuity and lateral thinking that allows me to take apart my bike for modification and if I get stuck I'm like the Christmas Turkey (stuffed). Until I can find a working window to fit the bits I have to be patient.
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