My either Crazy or that knocking /pinging is BAD...

[Scar13]

So I got my EC 250 carb cleaned up and on the bike and set up to idle nice and low.. NOW I hear a pinging /knocking sorta like piston head SLAP.. as I rev the Bike up and run her its smooth strong and you can no longer hear the noise.. ( engine is to loud )

However the faster you rev her and before the engine noise gets to loud you and hear that pinging/knocking get faster too. Obviously its either supposed to sound that way ( I some what doubt ) or I have a issue ready for explosion..

NOW I did crank the ec 300 and could BARELY hear it on that bike..

I put fresh OIL so its not oil unless I added to much...( 900 CC but I let it drain while angled on the kick stand residual could have added maybe 100 CC ? ) Silkolene Medium 85-90

Fuel perhaps?? I run only 93 octane and run 50 - 1 Should I look at adding a OCTANE booster??


Maybe its normal and I am crazy..