MOPED ARMY

Wouldn't hurt to change to carbon reeds but there will always be some blow back in a reed intake. At 9000rpm, the reeds are opening and closing 150 times a second.

If this filter sucks this bad I might just try a shampoo air box. For insurance iam gonna switch the reeds.

About the reeds what thickness would you recommend? Also interested in making a dual stage reed setup any tips? I searched some stuff Jbot did but iam thinking it might be more cost effective to buy some already made seeing as I don't think I'll pull it off first try.

those filters are junk, if it hasn't fallen apart it soon will

your plug looks super rich

also

if youre misfiring/four stroking the engine isn't seeing an even in and out pumping action and you will get more blowback because the rings don't seat right, the cylinder doesn't scavenge right, and you get weird pulsation issues.

I run K & n filters and 8 petal reeds

a good filter is good. blowback is still gonna be present with reeds inevitably, stiffer should blowback less, excessive blowback usually indicated worn out or poorly seated reeds but this seems normal. Dunno how often you've gotta clean it but filter needs cleaning sometimes, soak, rinse reoil. That plug looks too rich and too cold. like ready to foul

being tuned right is going to help with everything , your engine will literally fight itself to death if you aren't getting proper combustion on every cycle.

fitting new reeds, cutting them yourself, etc... its not hard but if i were you i would really nail down the tuning without changing variables first, then when it runs different with different reeds you will know what changed.

swapping out parts on a bike that is already not running perfecto just adds more weirdness to fight against.