What are you guys using for a factory type air filter on a atc90 ?

[Little General]

I can’t find any replacements for the air filter on a 1978 Honda atc90. I just restored an 72 ct90 last year and it looks like the filter might work. Both slide over a metal mesh center. Any ideas?

[kb0nly]

The one i always used on 90's is the UNI NU-4031, slides right onto the stock metal mesh center.

[Little General]

Thanks . Any idea how to remove plate shield on chain guard? The nuts spin on mine. Any reason I can’t grind them off and replace them ?