Inliners International Forums General Discussion Engines PCV Retrofit to a 235

Hoyt,
Until I added the PCV, the engine idled well with the mixture screw about 1 1/2 turns out. Now its about 3 turns out and seems to still have a lean misfire. I haven't checked the timing yet. I did check to see that the vacuum advance is working. I thought that might be contributing to the occasional backfire on throttle tip-in.