Engine vibe @ 3700 rpm Gen 2

Just picked up an '86 RWB 750. Well maintained by original owner, engine runs great. Pulls like a train at lower revs, goes lime snot above 6000 and is vibe free other than are about 3600 - 3800 rpm. Nothing major so I'm not concerned but I'm wondering if this is typical for this gen. Starts fine, idles fine. Again, just curious about the buzz in that narrow range. 42k kilometers. Thanks.....

 

Normal for a V-four, they like to spin a little faster than an in line at low RPM's when under a load.

 

Look to be sure the 2 rubber tank buffers are not MIA.

 

The tank is nice and firmly mounted on its pads. The buzz is just annoying when poking around in Toronto traffic. Best solution is just to stay out of the city and keep it on the open roads. :smile: thanks.