darkember 0 Posted April 25, 2011 I own a K1 series B12 & have always noticed a howel comming from the transmission especially noticeable in fourth gear.There has never been any sloppiness in the gear shifts nor any gear dropouts. The bike pulls like a train in all gears & the only gear misses are rider induced when I wear my steel toecapped work boots, which are rather clumbsy. I have heard other K1 owners with the same noises & was wondering if the gears are straight cut and maybe this would be the cause.Bike has done shy of 24K been fully maintained & systematically serviced using correct semi synth oils. All advice welcome Share this post Link to post Share on other sites
flange 0 Posted April 25, 2011 Ive owned over a dozen B12's over the years and a few have had a noisey gear or 2.Mostly 4th.If they were straight cut all gears would do it i think? Share this post Link to post Share on other sites
gravelrash 0 Posted April 26, 2011 Hi darkember, I have a bandit 1200k5 and have a close fitting pyramid plastics hugger, when I had a new tyre fitted there was a very load transmission howl which was eventually traced to the hugger resonating, possibly caused by the altered profile of the tyre. I swiched to the standard guard, problem gone. Now the tyre has a couple of thou miles I've switched back, ok so far. I'm also replacing my chain and sprockets and the O.E.M front engine sprocket has a damping rubber to cut transmission noise could yours be an aftermarket sprocket without this damper? just a couple of thoughts and hope you find a cure. Mike. Share this post Link to post Share on other sites
darkember 0 Posted April 26, 2011 Just an addition that was not mentioned in my first post.The howel only occurs under load either when I drop down from 5th to 4th or when I shift up from 3rd to 4th. It also only occurs between 30-40 mph.Gravel thanks for the advice need to check from the previous owner about the sprocket & will try the hugger idea. Share this post Link to post Share on other sites
darkember 0 Posted April 27, 2011 Just spoke to the previous owner & he had fitted a full DID kit front/back & chain. So now I'm well happy that the noise will be the undampened front sprocket. Share this post Link to post Share on other sites
bonzo-b 0 Posted April 28, 2011 Put a brand new 530XHO chain n sprox on last week... guess what... now got a bloody annoying whine so its probably that mate Share this post Link to post Share on other sites
gravelrash 0 Posted April 28, 2011 The rubber is integral to the sprocket and cannot be taken off to put with a pattern part (same sprocket for b6/b12) Mike. Share this post Link to post Share on other sites
darkember 0 Posted April 28, 2011 Thanks for the pictures gravel was wondering what the dampened ones looked like compared to the aftermarket ones. Share this post Link to post Share on other sites
