To Unfazed /Fazerider
I use the bike in summer mainly for pleasure riding, but occasionally for work.
I change the oil once a year, which is about every 5000 miles.
I use fully synthetic oil.
I haven't noticed a loss of power, although I've had the bike from new (2001) so if the loss of power is very gradual I probably wouldn't notice it.
However what I have noticed (thank you fazerider) is dirty oil around the sump plug area, so the gear shift oil seal may well be leaking.
Which to be fair is not unreasonable after 78,000 miles.
I use the bike in summer mainly for pleasure riding, but occasionally for work.
I change the oil once a year, which is about every 5000 miles.
I use fully synthetic oil.
I haven't noticed a loss of power, although I've had the bike from new (2001) so if the loss of power is very gradual I probably wouldn't notice it.
However what I have noticed (thank you fazerider) is dirty oil around the sump plug area, so the gear shift oil seal may well be leaking.
Which to be fair is not unreasonable after 78,000 miles.