1geo1 wrote on 07/26/20 at 16:30:43: I am new so if I get this wrong, forgive me, thanks

That being said I found something out I almost could not believe.
I rebuilt, jetted my carb ( I figure I repaired cars for 40 years, how hard could it be ? whole different post there, but anyways ) I went ti fire her up and crank/ no start ( yes, crankshaft turning

) .
Check spark, OK, check compression ( with a gauge ) great.
WTF, lots of thought and figured the gas does not smell bad so wth ?
Light bulb, problems with my tractor, same gas.
PUT THE BEST FUEL YOU CAN BUY AT THE PUMP IN.
OK, I don't mean go and buy aviation gas, and maybe I went to far with my upgrades, but I did learn a lesson.
Tell us more.. (or me at last) you seems to be experianced enough to do what you did! I dont do a thing, im to old and lasy. But I read a lot on this forum, there seems to be a vacum petcock kind of thing altso?
Sooo, Im just thinkering.. new petrol is almoste E10, it have a shelftime about some weeks/months (I think?), that could be a problem. Another problem on northern latitudes is if one store the bike for several months.. whit E10 fuel in the tank and carburator, it gonna evaporate in the carburator and leave som slime there.. mayby some aluminium corrotion to that?
In any case, my bike started up on spring the first pusch on the button after I rememeberd to get all buttons in the right place, choke out and the side stand to its up positions.
In any case I got a blue/yellow exhauste system.. it seems to me as a to lean mixture.. some dirt/slime in the carburator?
And top of this, im crying about that Suzuki dont gonna produce S40 anymore!