You're right, that is what you wrote but my point was that I think what you wrote isn't what it says in my service schedule!

I could be wrong, but as I understand it the first change is at 1 hour (total time), then the second is at 3 hours (total time) i.e. it should be showing 3 hours on the hour meter when you do the second one. If you go 3 more hours on top of the hour you've already done, you'll be at 4 hours on the meter.

In the schedule it says the second one is at "S3N", which is "once after three operating hours" - it doesn't say after three

*more* operating hours (and it would be odd if it did), so I read it as 3 hours in total when you do the change (and so did the dealer I bought the bike from who said they needed to do the service after 3 hours total). If the second service really is meant to be done at 4 hours total then the "S3N" definition in the service schedule is simply written wrongly, which I'd hope isn't the case.

So IMHO, if you've done 1 hour now you should ride

**2** more hours then do the next change, not 3 more.

Sorry to go on about it, but if you do it an hour later than it should be done I can't see that being good for the engine in the long run which is why I thought I'd say something. You're not obliged to take any notice of course, I could be wrong and it's your bike so it's entirely up to you. I'll shut up now and leave you in peace!