I'm not from Boston area BUT, I AM a New englander ;) I live in NH........ Whatcha riding??? Check out Nestreetrider.com for some locals...
Manual calls for minimum of 91 Octane....... I run NOTING other then Super in mine
Valve check should be done every 8000miles or every 12 months....... I havent paid to have it done before, BUT it onlt akes a few hours of time...
I used Honda's 10wt in mine.... Oil level=153mm (I'm not sure of the total quanity as you need to messure the level height, But I thin kI...
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