bandit 1200

[fxr]

hi chaps, used to be on hear all the time but lost bike ect, anyways  got me a bandit engined gixer 750, after a zap  of around 100 mile this weekend i have noticed a knock seems to come from gearbox, sounds just like the chain is to tight  it aint  put new sprockets on and done just about every thing i can think of without spliting cases, any ideas  thanks  g

[steve.w]

output bearing on sprocket shaft ??

[fatblokeonbandit]

dose it knock under load, on the over run, all the time????

[Fula28]

Output bearings drone on load constant! 

[fxr]

yep, i was hoping to hear better news but i reckon to thats its a bearing on output shaft, it does it more under load and seems to be a tad worse when warm, now, ive been a way from gixers for 6 years, last time i had engine upside down was to put a six speed box in  so how can i find out if i gotta do that without having engine out, i grabed hold of shaft and got no movement [not to say its not there under load tho] any tips ideas would be great  cheers chaps

[banoffee]

Had this exact problem on a bike years ago... the output shaft was very slightly out of true.