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