Ok I need some help with external breather bolts. Front jug 120 psi rear 110psi. Front breather bolt can’t feel the air coming out very much. Rear I can feel it. Would not seam that ten pounds would make that much difference. Any one out hear have same or our both the same pressure? If I hold finger over the front bolt it will get pressure but not much rear makes pressure pretty fast.

 

Exactly how did you come up with 120 & 110 psi from the breathers?

 

There is an oil separator and "valve" assembly in each head. It could be blocked or broken. First I would remove that bolt and be certain it is not blocked. Same for the threaded holes it bolts to. Many use Teflon rage and the bolt or passage could be blocked with used excess Teflon rage or thread sealer.

 

When I re did the breathers I put them in up side down. All fixed now