Hi all, got a question hopefully someone out there can help with. I have an Amal carb fitted to my bike, she fires up ok without an air filter, but if I fit a round pancake filter, she does not fire up. I think it's being starved of air with it on and so maybe set up for a bellmouth instead, but not sure. Ideally I would like some sort of filter to keep out any crap off the roads, any thoughts or replies would be appreciated. Thanks.