By the way, I'm doing the 6,000km service on my bike. Valve clearance must be inspected every 3,700 miles (6000km).
I have been using the Wally's World cheap "Tech 15-40 $1.75 USD" oil, so I was a little bit afraid of what I was going to find...
Valve clearance was PERFECT, no gap at TDC as some sources say it must be for a pushrod engine (Haynes manual 0.003 inches), so that means there has been no wear on the valve train since new!!!
That means the Tech stuff can't be the engine killer some people say it is.
OK, I can't believe it, the bike feels smother and the shifting is incredible. I can believe the shifting part, but I really doubt the engine is running smoother, I think it may be my imagination trying to justify $7.50 a quart???
I always thought that if you could feel a difference in the engine "smoothness" because of a lubricant that would be because the first lubricant wasn't doing its job. How the heck does an engine survive for so long with dino oil and feel so much better with synth. stuff?
a) My mind is playing with me
b) The engine is running smoother
c) b and the engine will last much longer?
Sad part is that no matter what I do, I'll have to change the oil again in 1850 miles, the problem is not the oil, but the amount of crap it collects as my bike is a filterless engine (just a centrifugal filter to get the heavy solids).