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Hi Jangermann - I'm the original poster on this thread. I still have the bike and after 5,000 miles it still has the thrumming/pulsing problem between 50 & 55 mph. The clutch also continues to make the same pulsing sensation through the lever when fully engaged and, as you described, the...

I finally got around to re-torquing the engine mount bolts. It didn't make any difference to the pulsing - with or without the bag brackets installed. I've been riding for over 40 years - everything from two stroke singles through pushrod singles, twins and triples, vee twins and dohc fours -...

Yup - I have the bags installed and have the pulsing from 2,500 to 3,000. The pulsing is worse with the bags on that it is without the bags mounted. Loosening and re-torquing the footpeg mounting plates reduces the intensity of the pulsing for a while but it gradually comes back. I've been...

My first reaction when I picked up my bike was that the chain was bad. Even after the chain was replaced due to the recall the bike still felt like the chain was bad. I improved the situation by making sure that the bolts holding the footpeg plates to the frame were properly tightened - mine...

The saga continues. I put the bags on the bike for the first time (the brackets etc. have been there since the new chain was installed - before the pulsing problem was 'solved' - but I haven't actually put the bags on til now) and the pulsing came back - exactly like it was before I tightened...

I also tried weighting the pegs and found that it made no difference. My bike is now working well, there is still a slight thrum (that's the best word that I've heard to describe the problem so far) between 47 and 51 MPH, but it's nothing like as bad as it was before & I can live with it no...

Gene, I'm sorry to hear that the torque of the footpeg mounting plate bolts was not the cause of the problem. The bolts on my bike were definitely under torqued when I checked them; after torquing them the pulsing, although not completely gone, is dramatically reduced and now only occurs at a...

I'm not picking it apart - duk2n raised the clutch question and I thought I'd take the opportunity to see whether the clutch rattle is normal on this model or not. In fact all of the questions that I've seen or that I've asked on the forum have been about discovering the common behavior of this...

Before I became focused on the footpeg mounting plates I thought that the pulsing could be something to do with the clutch (mine clatters like a Ducati dry clutch once the motor is warm and it is in neutral with the clutch out - does anyone else have the same issue?). I tried what duk2n...

Good point. Thanks for checking them. I think that the fact that your bike didn't have the pulsing problem and you found that the bolts were tight along with the fact that mine had the pulsing problem and my bolts were not tight, goes some way to proving my theory that the pulsing is caused by...

Yes, the paint dots were there on at least a couple of them. On my bike all four bolts were torqued to less than spec, the one behind the gearshift was tighter than the others - the others needed virtually no pressure on the wrench to start unscrewing them. I'm not sure why you disturbed the...

I don't know about the 125, but check the tightness of the four bolts that hold the footrest plates to the frame. They should be at 32 nm. Mine were just snugged down. When I torqued them correctly on my bike the whooozzzh whooozzzh went away so I think that I've found the cause of the...

Below 470 revs there might not be sufficient flow to fill the cylinders evenly. At 470 and above there is probably enough flow for both cylinders to fill equally.

Sorry for the delay - work got in the way. I checked the plate mounting bolts today. They were little more than hand tight. I torqued them to the specified level (32 nm) and went for a test ride. The difference is dramatic, I can sense a slight pulsing at around 50 mph but I think that I've...

I completely agree with Mike and Thomasec. This morning was foggy during my commute and the traffic stayed at about 53 mph for mile after mile. Rather than shifting down I decided to experiment a little. 670cc said in an earlier post that sometimes he felt something through the pegs at the...

Maybe my original posting was unclear. The bike is fine between 45 and 50 in top - no pulsing or any other odd behaviour. Acceleration from 45 in top is moderate as you would expect but is acceptable and is smooth. Upon reaching 50 the pulsing starts and continues until you exceed 55 or drop...

I adjusted the chain to the loose end of the specification - no change in the pulsing, still a little less amplitude than it was with the 'bad' chain, but it remains very annoying when coasting along in traffic at 50 - 55 in 6th. The dealer doesn't seem interested in diagnosing the problem. I...

Got my bike back from the dealer yesterday with the new chain installed. I still have the problem. The amplitude seems to be diminished slightly but, in my opinion, the dealer has the chain adjusted too tightly; with someone sitting on the bike the chain is very tight and while riding it home...

Just got off the 'phone with my dealer. The problem with the chain (my bike has the type of chain being recalled) is that the plates were not properly hardened leading to rapid and uneven stretching of the chain. I pointed out in my original post that the problem felt like an unevenly...

Never heard of V4 motors with cam problems or 1200 wings with fried alternators? Even the best production engineers have occasional problems.