Since I am a lst time owner of my '97 Yamaha YZF600r & '00 Honda 929. It is a fact that I have not had to do any work on the bike bar usual like tyres, chain, inspect sprockets, change oil & put in petrol. The 600 did need a new starting gear & the Yamaha mechanic noted it, for it was so gradual that I had not----that was corrected within a week.
Will admit the 600r was in a prang (partially my fault of going to fast on some twisties only to loose front end on some gravel) & the plastics would have cost me over 5 grand, but accepted some of the scratches & dints to keep the costs down.
Once I felt my work on adjusting the chain on the 600 was finished only the old mind kicked in & sure enough the axle nut had not been snugged up.
Most of my other Japanese bikes have been new or just one prior owner & only on the last did I check all, but the others held strong till the day I sold the bikes bare an '80 RZ-350 that tended to loose the one nut/bolt & out would go the baffle till I correctred that.
Will admit I put far more effort into checking my dirt comp irons for they were pushed to the limit all the time. Street irons are NOT pushed to the limit. Mind you if you are going for a LONG trip, of several day to a week plus, then it would not hurt to give the bike a much closer inspection. Still I ride 4 to 6 hr runs on my 929 or 600, almost daily, & do not need to thoroughly inspect the bikes bar tyre pressure, wear, chain adjustment & I do have a Log Book on both bikes so know what should be done & what has been done.
The days of laying out all my spanners & such to go over the bike from front to back, every week or each time before I took off to practice comp., are no longer needed as they were in the Brit irons. STILL if one obtains a "used" bike then they should go over the bike & be ready to do it a 2nd time or upon any rattle one might hear.
Info laid out in the Owner's Manual & the workshop manuals gives one a maze of info we never had with Brit irons along with the use of nuts that do not work free, Loctite & such.