Hi Matt: There is a good possibility that your PVC valve is not functioning, so when you remove the oil cap. the vacuum line is letting way too much air into the carb/ontake manifold. My suggestion? Clean or replace the PVC valve.
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Hi Matt:
There is a good possibility that your PVC valve is not functioning, so when you remove the oil cap. the vacuum line is letting way too much air into the carb/ontake manifold.
My suggestion?
Clean or replace the PVC valve.