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Hi Guys First post but hoping for some guru guidance....I have a 750M which I have had for several years (all sorts of reasons why it doesnt do many miles, largely summed up as 'life'). Having fitted new disks/pads to it at the weekend (despite the minimal run out on the originals it got scary when you went straight from throttle to brake...) I took it out for a run which, about 40 miles in as I exited one of the picturesque villages we thrive on round here it felt wrong....Immediately lifted the clutch, coasted into a farmers track and went round it thinking 'what did I fail to torque up...' Couldn't see a problem so pulled away but have noises from the underside that say otherwise - going from first to second this developed into a significant whine. Pull up again and notice that I now have much more chain slack than before... Hands up - I know the most likely cause of a final drive bearing is an overtightened chain - it got picked up that it was too loose as an advisory on its last MOT when it was last done (2 years ago....) so this time I double checked - I checked the chain in umpteen places and seemed to have sufficient slack - in retrospect, I think it was too tight (I don't generally use the clutch on an upchange and it just felt a little 'tight') and yes, I should have known better but even rapidly approaching 50 the ignorance of my youth fails to desert me...... So, I am pretty sure its munched the final drive bearing - from what I can see, at some point during the waterjackets life they changed it so that you could remove a plate and pull the bearing. The M however is going to require the motor out and the cases split to replace it. I will roll into the stupid questions now: - I am assuming that I can drop the motor, remove the sump and split the cases, change the bearing (and in the immortal words of those workshop manuals...) 'Assembly is generally the reverse of disassembly' - What else needs to come off the motor for me to split the cases? - As far as I can tell there is no gasket between the two halves of the cases - basically uses what used to be called instant gasket and now seems to be called a variety of things - Is this right? - Which other gaskets will I require - exhaust gaskets are obvious, same for the clutch, as is the other side gasket (ignition pick ups under there?) but are there any others? - Any bolts that I am removing that need to be replaced? - I haven't stripped an engine in a number of years - my first engine was with my late father, stripped and rebuilt a 250 superdream (from the best bits of 2 engines and 30K later it was still going) a GS550EZ (with the 650 wiseco kit) and a Z650 but all of these were complete strips and rebuilds so you need everything (which is more straightforward but when I do rebuild the M - or have it rebuilt - I would prefer to go silly and have everything done - the situation with the M is that whilst in the next couple of years I may want to refresh it (this is a bike I want to keep) at the moment I just want to know what I can get away with. The problem with the Haynes manual is that it assumes that to access the bottom end you are pulling down the whole engine - whilst I am prepared to do that, I would prefer to understand if I can get away with splitting the cases from below and dropping the drive shaft, the pulling some favours with the bearing replacement (I assume a bearing puller will get the old one off no problem, what about refitting?) I have looked and whilst I can see references elsewhere to this bearing failing, I cant find much regarding the remedial - happy to take some pics and share them on here for anyone else who finds themselves in the situation but am figuring with the level of experience evident in these forums I am far from the first person to be looking at this..... I hope someone with experience on the slingshot engines can help.... Cheers. D.