Himalayan Valve Adjustment Questions!

[Gamphy]

@Dool2 - The illustrations maybe incorrect, but the manual is for the LS410 (see bottom of page). Bad documentation strikes again.

Be that as it may be, the OP was asking about proper valve clearances. The numbers that he quoted are correct, and work ok. The intake is simply at the tight end of the spec, which is fine. The tighter spec for the exhaust that others have stated is a bit too tight IMHO, but I think it's an attempt to reduce the Himalayan rattle that is so common. I would go with what the manual states and have a little rattle, than too tight and risk burning a valve.

I think the Op was really asking which manual to believe, as you say in the latest release the IN is simply at the tight end of the original manual, whereas EX is significantly tighter than the original manual.
FWIW I use 0.8 - 0.10mm IN and 0.2 - 0.23mm EX without issues.

 

[Scrammy]

Cor, a lot of oldies on this forum; I started with a crap BSA Bantam in '69 so I reckon you trump me, if you'll excuse the word. I actually had to watch that vid a few times, and I used the slow-down feature on YouTube to make it really simple, doh. I've got to the age where knowledge has started to fall out of my brain now, wonder why....

Why do I need to excuse the word ?