I haven't heard running or seen another Terra/ Strada except for mine. Seen a few videos on you tube but its hard hear the engine. I know its a thumper and big singles arnt known as the smoothest or quietest engines in the world. Question is; does every other Terra's engine sound like an old diesel truck running lol. When idol mine knocks and clicks. Makes me think something is wrong. At low rpm driving it makes a pretty good knocking noise (below 2.5k rpm) above 3K noise starts to go away. Engine is very happy at or above 4000. I do have a Ricochet plate but it dosent matter if I take it off or leave it on....only difference it makes is how loud the knocking noise is.
Ya mine like it over 3K for sure. A bit noisy under that while riding. But does not knock or click while idling. What fuel are you running?
I think there is some loudness to the engine, it is 12:1 compression. At higher rpms, there is more float and that would quiet it down. My New BMW R100GS sounded pretty loud also. My Terra has what could be construed as top end noise. If it is abnormally loud, well get it to the dealer pronto.
I'm in the same boat, Richochet bash plate and it sounds like a bucket of bolts below 3 grand This really doesn't bother me at all because it is soooo smooth once the revs get up to the happy spot!
I have the Touratech skid plate. I used the Dynamat stick-on sound deadener designed for speakers. It seemed to cut down on the reflected noise quite a bit. Before, when I struck it with something like a wrench, it would ring. After, it "thunked". http://www.amazon.com/gp/product/B00020CATC/ref=ox_ya_os_product
Pretty sure you can get this stuff at any home builders store. 4-4"x6" sheets for $6. Sticky sound suppressor
A common misunderstanding due to different methods of measuring the octane rating of fuel. http://en.wikipedia.org/wiki/Octane_rating
Difference between RON and AKI[edit] Because of the 8 to 10 point difference noted above, the octane rating shown in Canada and the United States is 4 to 5 points lower than the rating shown elsewhere in the world for the same fuel. See the table in the following section for a comparison. Ok.........
I'm reasonably sure that matches my bike and the several other TR650s I rode. Mine especially makes that sound going up a steep hill at those rpms.