Spark Plug colour

[darrsi]

Thanks daviee and robbo. I read recently that the colour of plugs is more to do with finding out if the plugs heat range was suitable. Anyhow, since the carb strip, clean and balance the engine runs fabulous. My concern was that I was unable to adjust the seized mixture screws and would be stuffed if the lower rpm range was incorrect, I know a colour tune might help, but at the moment all seems fine for a 47000 mile engine. I've done some high speed / high load plug chops on other bikes and it's quite 'ahem' exhilarating ?. I noticed there's only 3 clicks left on the cam chain tensioner so it'll get chain and valve clearances done when the snow comes.
I read on here that the oil light isn't for pressure but for oil level, while out checking the engine through its rev range for any running/mixture issues I noticed the oil light flicker at high revs in 3rd gear when the front wheel started lifting, I'm presuming (hoping) this was just oil surge to the rear of the cases. No oil loss and level to top of sight glass.

My oil window is useless now, just can't see a bloody thing through it.
With a new oil filter in place i put in 2.8 litres of oil now and it lasts me until the next oil change with no flickering oil light or issues at all.
It's all i can do really, unless i pull the engine apart to clean or replace the window, but i've decided against that stupidity.