nigelwood1 Posted July 28, 2008 Share Posted July 28, 2008 I have had a vibration on my bike at different revs for some time but recently it has got worse..It used to start at 2500 and then go away at 3500 and then would appear again at 4500 and go again at 5500...The one at 4500 seems to effect most ZZR1200's as I have ridden a couple and they both did it...Last week I went for a ride with my mates and it was much worse... It started to vibrate at 2500 and didn't clear at all...I was on the M50 and had about 25 miles to do so I took it up to 90 to see if it would clear and it didn't so I went up to 110 and it was still there...Finally I thought the quicker I get home the better as the other half was suffering badly so I whipped the bike up to 140 and made short work of the 25 miles...The vibration seems to be most noticeable throught the rear pegs but I get a fair bit through mine as well..I have a new tyre being fitted on Wednesday as the old one is a bit tired and I have removed the shock linkage and cleaned and re-greased it...The rear disc warped a while back and that has been changed...I was thinking it may be the engine mounts....Any other ideas from anyone????? Quote Link to comment Share on other sites More sharing options...
Stu Posted July 28, 2008 Share Posted July 28, 2008 whats the milage and when was the last service Quote Link to comment Share on other sites More sharing options...
nigelwood1 Posted July 29, 2008 Author Share Posted July 29, 2008 19000 miles and about 18 months on the service as it hasn't had much use this year...Going to be serviced soon... Quote Link to comment Share on other sites More sharing options...
cyberwolf Posted July 29, 2008 Share Posted July 29, 2008 sell it to one of the women on here they would love it Quote Link to comment Share on other sites More sharing options...
nigelwood1 Posted July 29, 2008 Author Share Posted July 29, 2008 Thats a possibility but its a bit of a teeth rattler.... Quote Link to comment Share on other sites More sharing options...
Guest Posted July 29, 2008 Share Posted July 29, 2008 Mechanically I am unable to help.But I really doubt that, having established a mechanical fault, thrashing the nuts off it on a motorway would be the recommended course of action! Quote Link to comment Share on other sites More sharing options...
Guest akey Posted July 29, 2008 Share Posted July 29, 2008 check your chain tension, this can cause an awful vibration through the footpegs.If not then check wheel bearings and headstock bearing Quote Link to comment Share on other sites More sharing options...
Stu Posted July 29, 2008 Share Posted July 29, 2008 also if it hasnt had a service in a while it might bo worth checking the valve clearances a tight valve that is slightly open can cause vibes but not as bad as teeth rattling Quote Link to comment Share on other sites More sharing options...
nigelwood1 Posted July 29, 2008 Author Share Posted July 29, 2008 Getting new tyre fitted tomorrow and then will be checking engine mounts...Chain and Sprockets were new last year and lubed after every ride....Next service is the valve clearance check one.... No excessive noise at moment...Head stock is ok and wheel bearings are going to be changed over winter anyway... Sprocket carrier bearing checked and ok...Front disc's may be slightly warped but had a couple of stuck bobbins which when freed up seemed to stop any vibration....Biggest pointer is the fact that if I pull in the clutch the vibration goes away... Quote Link to comment Share on other sites More sharing options...
Stu Posted July 29, 2008 Share Posted July 29, 2008 does it do it when riding solo too ?could be output shaft bearing Quote Link to comment Share on other sites More sharing options...
nigelwood1 Posted July 29, 2008 Author Share Posted July 29, 2008 Its less noticeable when I'm riding solo but I tend to sit slightly further back from the tank so the trouser sensers are not registering as much... I can still feel it through the pegs but not as much... Quote Link to comment Share on other sites More sharing options...
Stu Posted July 29, 2008 Share Posted July 29, 2008 check chain tension it sounds like its pulling tight with weight on it and causing stress on the output shaft if you didnt know but im guessing you will always check the tension with weight on the bike Quote Link to comment Share on other sites More sharing options...
nigelwood1 Posted July 29, 2008 Author Share Posted July 29, 2008 Got a mate, who used to be a bike mechanic, to check it at one of our rideouts with me and the other half on it and it was ok...I'm going to check all the engine mounts tomorrow after I refit the back wheel and then take it out and see how she runs.... Quote Link to comment Share on other sites More sharing options...
Stu Posted July 29, 2008 Share Posted July 29, 2008 while your at it pull the sprocket cover off and see if there is any movement on the output shaft how many miles has the bike done ? Quote Link to comment Share on other sites More sharing options...
nigelwood1 Posted July 29, 2008 Author Share Posted July 29, 2008 I checked the sprocket a couple of weeks back and it appeared ok but as the fairing is off I might as well check it again...The old girl has done 19000 ish... Quote Link to comment Share on other sites More sharing options...
Stu Posted July 29, 2008 Share Posted July 29, 2008 no harm in checking again seems a bit odd it deffo sounds like a bearing just which one is that hard part if you pull the clutch in and keep some revs on can you still feel it ? Quote Link to comment Share on other sites More sharing options...
nigelwood1 Posted July 29, 2008 Author Share Posted July 29, 2008 Haven't tried that one yet...I stripped and cleaned the rear linkage yesterday and it is now full of nice new grease and has no play in it so I have that to test as well as the new tyre...While I'm checking that lot out I will try the clutch in and revs thing... Quote Link to comment Share on other sites More sharing options...
nigelwood1 Posted July 30, 2008 Author Share Posted July 30, 2008 The tyre did not turn up today so will have to go tomorrow to get it fitted....I changed the rear wheel bearings today as I found that one of them was Kaput....Had a chance to clean it as my mate the tyre man took the old tyre off for me...Going to check engine mounts once the wheel is back in... Quote Link to comment Share on other sites More sharing options...
Stu Posted July 31, 2008 Share Posted July 31, 2008 the wheel bearing could have been it no harm in checking it all though Quote Link to comment Share on other sites More sharing options...
nigelwood1 Posted July 31, 2008 Author Share Posted July 31, 2008 Going to ride it once the wheels back in and before I put all the placky back on so I don't waste time putting it all back together....Fingers crossed...... Quote Link to comment Share on other sites More sharing options...
nigelwood1 Posted August 1, 2008 Author Share Posted August 1, 2008 Latest update....New tyre fitted..New rear wheel bearings fitted..Rear linkage stripped, cleaned, re-greased and refitted..Engine mounts checked and tightened... Lower rear one was a little loose..Vibration has reduced considerably..Was only a short ride as tyre was new and it started to rain but it felt better...Good job I didn't go too far as I forgot to put number plate back on... DOH!!!Got to helicoil a fairing mounting point on the frame and put the fairing back on and must try it with the missus on to make sure it is better... Quote Link to comment Share on other sites More sharing options...
Guest Posted August 1, 2008 Share Posted August 1, 2008 I admire your hands-on approach - I wouldn't know where to start with mine! Quote Link to comment Share on other sites More sharing options...
Hoody Posted August 1, 2008 Share Posted August 1, 2008 I reckon if you keep to 140ish the vibration will go away for 6 to 18 months Quote Link to comment Share on other sites More sharing options...
Guest Posted August 1, 2008 Share Posted August 1, 2008 I reckon if you keep to 140ish the vibration will go away for 6 to 18 months And you'll have plenty of time to fettle to your heart's content Quote Link to comment Share on other sites More sharing options...
Guest Posted August 10, 2008 Share Posted August 10, 2008 i had a simular prob with my 929 blade. it was the front sprocket... changed that and its sorted. sounds like its sorted now tho. good news pal... Quote Link to comment Share on other sites More sharing options...
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