update:
engine has run 4x10min fine.
when the bike stands still, engine is running flawless.
however: two times i did a testride for approx half a mile. the streets are dirty and wet now, therefore it makes not much fun and sense to drive a longer period.
one time it was difficult to engage into first gear (engine running, bike standing still). i do not know the cause of this problem till now. i removed the gear cover, but didn´t find any mistake.
but most off all i am concerned with the following circumstance: i accelerated in first gear to approx 4000rpm, shifted into second and closed the throttle to decelerate. this change from acceleration to deceleration made some ugly noise in the engine, for 1 or 2 seconds only. the other time this happened again, i think it was in third gear now, again changing from acceleration to deceleration.
there is one idea that comes to my mind: are there issues with the long and heavy hivo primary chain? i remember, it was a lucky circumstance that the hivo chain fitted more than well onto the shafts concerning the length and tension of the new chain. there was beneath no slack of the chain, fitting the primary shaft very exactly into the cases. chain tensioner is the cb900f bol d´or type, spring activated without hydraulic dampener however.
first of all i removed the oil pan to have a look inside the cases. but found nothing wrong. i was curious to find any metal flake, chips. but none.
next step is to do the dyno runs. just curious if we will encounter the same issues. eventually this problem shows up in a certain rpm range only. before i will have a look in the clutch regio to make sure that there is no hidden problem.
is it possible that the long hivo is running into "self-frequency vibration" problems?
mec